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Contents Wiring diagrams Section: Automatic HVAC System All sections

Heating & Air Conditioning - Electrical Diagnostics: Diagnosis Dodge Dart PF

Automatic HVAC System ~27174 words

DIAGNOSTIC CODE INDEX

DTCDescription
B1000-92A/C SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1009-92RECIRCULATION SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1015-92EBL / REAR DEFROST SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B10E8-11BLOWER MOTOR CONTROL - CIRCUIT SHORT TO GROUND
B10E8-12BLOWER MOTOR CONTROL - CIRCUIT SHORT TO BATTERY
B10E8-16BLOWER MOTOR CONTROL - CIRCUIT VOLTAGE BELOW THRESHOLD
B10E8-17BLOWER MOTOR CONTROL - CIRCUIT VOLTAGE ABOVE THRESHOLD
B1030-11EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B1030-15EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY OR OPEN
B1058-11RECIRCULATION DOOR CONTROL - CIRCUIT SHORT TO GROUND
B1058-12RECIRCULATION DOOR CONTROL - CIRCUIT SHORT TO BATTERY
B1058-13RECIRCULATION DOOR CONTROL - CIRCUIT OPEN
B1058-2BRECIRCULATION DOOR CONTROL - WIRES SHORTED TOGETHER
B1058-92RECIRCULATION DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B105C-00RECIRCULATION DOOR TRAVEL RANGE TOO SMALL
B105D-00RECIRCULATION DOOR TRAVEL RANGE TOO LARGE
B10B2-00A/C COOL DOWN TEST PERFORMANCE
B1107-11CABIN TEMPERATURE SENSOR 1 - CIRCUIT SHORT TO GROUND
B1107-15CABIN TEMPERATURE SENSOR 1 - CIRCUIT SHORT TO BATTERY OR OPEN
B11C2-11FRONT MODE DOOR 1 CONTROL - CIRCUIT SHORT TO GROUND
B11C2-12FRONT MODE DOOR 1 CONTROL - CIRCUIT SHORT TO BATTERY
B11C2-13FRONT MODE DOOR 1 CONTROL - CIRCUIT OPEN
B11C2-2BFRONT MODE DOOR 1 CONTROL - CIRCUIT SHORT TO GROUND
B11C2-92FRONT MODE DOOR 1 CONTROL - PERFORMANCE OR INCORRECT OPERATION
B11C3-00FRONT MODE DOOR 1 TRAVEL RANGE TOO SMALL
B11C4-00FRONT MODE DOOR 1 TRAVEL RANGE TOO LARGE
B11C8-11RIGHT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B11C8-12RIGHT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO BATTERY
B11C8-13RIGHT TEMPERATURE DOOR CONTROL - CIRCUIT OPEN
B11C8-2BRIGHT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B11C8-92RIGHT TEMPERATURE DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B11C9-00RIGHT TEMPERATURE DOOR TRAVEL TOO SMALL
B11CA-00RIGHT TEMPERATURE DOOR TRAVEL TOO LARGE
B11CB-11MAIN/LEFT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B11CB-12MAIN/LEFT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO BATTERY
B11CB-13MAIN/LEFT TEMPERATURE DOOR CONTROL - CIRCUIT OPEN
B11CB-2BMAIN/LEFT TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B11CB-92MAIN/LEFT TEMPERATURE DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B11CD-00MAIN/LEFT TEMPERATURE DOOR TRAVEL TOO SMALL
B11CD-00MAIN/LEFT TEMPERATURE DOOR TRAVEL TOO LARGE
B11D3-00A/C COOLDOWN TEST PERFORMANCE - COMPRESSOR NOT ENGAGED
B11D5-00A/C COOLDOWN TEST PERFORMANCE - EVAP TEMP SENSOR ERROR
B11D9-92BLOWER SPEED KNOB REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11DB-92MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11E9-92LEFT TEMPERATURE KNOB REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11F0-11LEFT FLOOR DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B11F0-15LEFT FLOOR DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY OR OPEN
B11F1-11RIGHT FLOOR DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B11F1-15RIGHT FLOOR DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY OR OPEN
B11F2-11LEFT PANEL DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B11F2-15LEFT PANEL DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY OR OPEN
B11F3-11RIGHT PANEL DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B11F3-15RIGHT PANEL DUCT TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY OR OPEN
B11F4-11MODE/TEMPERATURE DOOR VOLTAGE REFERENCE - CIRCUIT SHORT TO GROUND
B11F4-12MODE/TEMPERATURE DOOR VOLTAGE REFERENCE - CIRCUIT SHORT TO BATTERY
B11FE-11VARIABLE A/C COMPRESSOR CONTROL - CIRCUIT SHORT TO GROUND
B11FE-12VARIABLE A/C COMPRESSOR CONTROL - CIRCUIT SHORT TO BATTERY
B11FE-13VARIABLE A/C COMPRESSOR CONTROL - CIRCUIT OPEN
B1600-11LEFT SOLAR SENSOR - CIRCUIT SHORT TO GROUND
B1600-12LEFT SOLAR SENSOR - CIRCUIT SHORT TO BATTERY
B1603-11RIGHT SOLAR SENSOR - CIRCUIT SHORT TO GROUND
B1603-12RIGHT SOLAR SENSOR - CIRCUIT SHORT TO BATTERY
B160F-11TWILIGHT/AMBIENT LIGHT SENSOR INPUT - CIRCUIT SHORT TO GROUND
B160F-12TWILIGHT/AMBIENT LIGHT SENSOR INPUT - CIRCUIT SHORT TO BATTERY
B210D-84BATTERY VOLTAGE LOW - SIGNAL BELOW ALLOWABLE RANGE
B210E-85BATTERY VOLTAGE HIGH - SIGNAL ABOVE ALLOWABLE RANGE
B2214-00(HVAC) CLIMATE CONTROL INTERNAL
B222A-00VEHICLE LINE MISMATCH
U0019-00CAN B BUS
U0020-00CAN B BUS OFF PERFORMANCE
U0140-00LOST COMMUNICATION WITH BCM
U0155-00LOST COMMUNICATION WITH CLUSTER/CCN
U0184-00LOST COMMUNICATION WITH RADIO
U0401-00IMPLAUSIBLE DATA RECEIVED FROM ECM/PCM
U0422-00IMPLAUSIBLE DATA RECEIVED FROM BCM
U0423-00IMPLAUSIBLE DATA RECEIVED FROM CLUSTER/CCN
U11B8-00LOST COMMUNICATION WITH INTEGRATED CENTER STACK (ICS)

DIAGNOSTIC CODE INDEX

DIAGNOSTIC TEST

  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the A/C On/Off Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the A/C On/Off Control Switch being held in or stuck On? Yes The A/C Heater control cannot be repaired or adjusted and must be replaced if inoperative or damaged but it might be cleanable if external debris is inhibiting the proper operation of the control switch or knob. If you are unable to clean the control to where it can function properly, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on and wait a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Does the scan tool display this DTC as Active or is the status of the switch reading On? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Recirculation Mode Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Recirculation Mode Switch being held in or stuck On? Yes The A/C Heater control cannot be repaired or adjusted and must be replaced if inoperative or damaged but it might be cleanable if external debris is inhibiting the proper operation of the control switch or knob. If you are unable to clean the control to where it can function properly, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on and wait a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Does the scan tool display this DTC as Active or is the status of the switch reading On? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the (EBL) Electronic Rear Defrost Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the (EBL) Electronic Rear Defrost Switch being held in or stuck in an On? Yes The A/C Heater control cannot be repaired or adjusted and must be replaced if inoperative or damaged but it might be cleanable if external debris is inhibiting the proper operation of the control switch or knob. If you are unable to clean the control to where it can function properly, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on and wait a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Does the scan tool display this DTC as Active or is the status of the switch reading On? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  1. VERIFY THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Does the scan tool display this DTC as active? Yes Go To 2 No Go To 5
  2. CHECK THE BLOWER MOTOR SUPPLY CIRCUIT (C7) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Control harness connector. Disconnect the Blower Motor Power Module C1 harness connector. Measure the resistance between ground and the Blower Motor Supply circuit (C7). Is the resistance below 100k Ohms? Yes Repair the Blower Motor Supply circuit (C7) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE BLOWER MOTOR GROUND SIGNAL CIRCUIT (C6) FOR A SHORT TO GROUND Measure the resistance between ground and the Blower Motor Ground Signal circuit (C6). Is the resistance below 100k Ohms? Yes Repair the Blower Motor Ground Signal circuit (C6) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLOWER MOTOR POWER MODULE Turn the ignition off to the lock position. Replace the Blower Motor Power Module in accordance to the Service Information. Refer to «MODULE, POWER, BLOWER MOTOR, REMOVAL»(ref-646220-S37154092782014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset performing the HVAC Verification Test? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE BLOWER MOTOR POWER MODULE SUPPLY CIRCUIT (C56) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the Blower Motor Power Module harness connector. Disconnect the A/C Heater Control harness connector. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. Check the voltage of the Blower Motor Power Module Supply Signal circuit (C56). Is there any voltage present? Yes Repair the Blower Motor Power Module Supply Signal circuit (C56) for an short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE BLOWER MOTOR POWER MODULE SUPPLY CIRCUIT (C56) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Blower Motor Power Module Supply Signal circuit (C56) between the A/C Heater Control harness connector and the Blower Motor Power Module harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blower Motor Power Module Supply Signal circuit (C56) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLOWER MOTOR GROUND SIGNAL CIRCUIT (C6) FOR AN OPEN Measure the resistance of the Blower Motor Ground Signal circuit (C6) between the A/C Heater Control harness connector and the Blower Motor Power Module harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blower Motor Ground Signal circuit (C6) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE BLOWER MOTOR POWER MODULE Turn the ignition off to the lock position. Replace the Blower Motor Power Module in accordance to the Service Information. Refer to «MODULE, POWER, BLOWER MOTOR, REMOVAL»(ref-646220-S37154092782014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did the DTC reset during or after the HVAC Verification Test? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. VERIFY THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Does the scan tool display this DTC as active? Yes Go To 2 No Go To 5
  2. CHECK THE BLOWER MOTOR POWER MODULE SUPPLY SIGNAL CIRCUIT (C56) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Control harness connector. Disconnect the Blower Motor Power Module C1 harness connector. Measure the resistance between ground and the Blower Motor Power Module Supply Signal circuit (C56). Is the resistance below 100k Ohms? Yes Repair the Blower Motor Power Module Supply Signal circuit (C56) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE BLOWER MOTOR GROUND CIRCUIT (C6) FOR A SHORT TO GROUND Measure the resistance between ground and the Blower Motor Ground circuit (C6). Is the resistance below 100k Ohms? Yes Repair the Blower Motor Ground circuit (C6) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLOWER MOTOR POWER MODULE Turn the ignition off to the lock position. Replace the Blower Motor Power Module in accordance to the Service Information. Refer to «MODULE, POWER, BLOWER MOTOR, REMOVAL»(ref-646220-S37154092782014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset performing the HVAC Verification Test? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE BLOWER MOTOR POWER MODULE SUPPLY SIGNAL CIRCUIT (C56) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the Blower Motor Power Module harness connector. Disconnect the A/C Heater Control harness connector. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. Check the voltage of the Blower Motor Control circuit. Is there any voltage present? Yes Repair the Blower Motor Power Module Supply Signal circuit (C56) for an short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE BLOWER MOTOR POWER MODULE SUPPLY SIGNAL CIRCUIT (C56) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Blower Motor Control circuit between the A/C Heater Control harness connector and the Blower Motor Power Module harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blower Motor Power Module Supply Signal circuit (C56) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLOWER MOTOR GROUND CIRCUIT (C6) FOR AN OPEN Measure the resistance of the Blower Motor Ground circuit (C6) between the A/C Heater Control harness connector and the Blower Motor Power Module harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blower Motor Ground circuit (C6) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE BLOWER MOTOR POWER MODULE Turn the ignition off to the lock position. Replace the Blower Motor Power Module in accordance to the Service Information. Refer to «MODULE, POWER, BLOWER MOTOR, REMOVAL»(ref-646220-S37154092782014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did the DTC reset during or after the HVAC Verification Test? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Evaporator Temperature Sensor harness connector. Measure the resistance between ground and the (C21) Evaporator Temperature Sensor Signal circuit. Is the resistance below 100k Ohms? Yes Repair the (C21) Evaporator Temperature Sensor Signal circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO THE (C333) SENSOR GROUND CIRCUIT Measure the resistance between the (C21) Evaporator Temperature Sensor Signal circuit and the (C333) Sensor Ground circuit. Is the resistance below 100k Ohms? Yes Repair the (C21) Evaporator Temperature Sensor Signal circuit for a short to the (C333) Sensor Ground circuit. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE EVAPORATOR TEMPERATURE SENSOR Replace the Evaporator Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Cycle the ignition off for 30 seconds then back on. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT VOLTAGE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE EVAPORATOR TEMPERATURE SENSOR Turn the ignition off to the lock position. Disconnect the Evaporator Temperature Sensor harness connector. NOTE: Due to the small terminal and pin size of the Evaporator Temperature Sensor and harness connector, make sure to not damage the terminals in this process. Connect a jumper wire between the (C21) Evaporator Temperature Sensor Signal circuit and the (C333) Sensor Ground circuit in the Evaporator Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Evaporator Temperature Sensor voltage. Is the voltage below 0.2 of a volt? Yes Replace the Evaporator Temperature Sensor in accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the jumper wire from the previous step. Disconnect the A/C Heater Module C1 harness connector. Ignition on, engine not running. Measure the voltage of the (C21) Evaporator Temperature Sensor Signal circuit. Is voltage above 0.2 of a volt? Yes Repair the (C21) Evaporator Temperature Sensor Signal circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE (C21) EVAPORATOR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the (C21) Evaporator Temperature Sensor Signal circuit between the A/C Heater Module C1 harness connector and the Evaporator Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the (C21) Evaporator Temperature Sensor Signal circuit for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE (C333) SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (C333) Sensor Ground circuit between the A/C Heater Module C1 harness connector and the Evaporator Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the (C333) Sensor Ground circuit for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Recirculation Door Actuator harness connector. Measure the resistance between ground and the Recirculation Door Signal circuit (C32). Is the resistance below 100k Ohms? Yes Repair the Recirculation Door Signal circuit (C32) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO GROUND Measure the resistance between ground and the Reference Voltage circuit (C26). Is the resistance below 100k Ohms? Yes Repair the Reference Voltage circuit (C26) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Recirculation Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Recirculation Door Signal circuit (C32). Is there any voltage present? Yes Repair the Recirculation Door Signal circuit (C32) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO VOLTAGE Measure the voltage of the Reference Voltage circuit (C26). Is there any voltage present? Yes Repair the Reference Voltage circuit (C26) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR ACTUATOR Turn the ignition off to the lock position. Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Recirculation Door Actuator harness connector. Measure the resistance of the Recirculation Door Signal circuit (C32) between the A/C Heater Module C1 harness connector and the Recirculation Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Recirculation Door Signal circuit (C32) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR AN OPEN Measure the resistance of the Reference Voltage circuit (C26) between the A/C Heater Module C1 harness connector and the Recirculation Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Reference Voltage circuit (C26) circuit for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) AND REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO EACH OTHER Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Recirculation Door Actuator harness connector. Measure the resistance between the Recirculation Door Signal circuit (C32) and the Reference Voltage circuit (C26). Is the resistance below or within the range of 1.5 - 2.18 Ohms? Yes Repair these circuits for a short to one another. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 9
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did any other HVAC DTCs set while performing the Actuator Calibration Test? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Recirculation Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Recirculation Door Signal circuit (C32). Is there any voltage present? Yes Repair the Recirculation Door Signal circuit (C32) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO VOLTAGE Measure the voltage of the Reference Voltage circuit (C26). Is there any voltage present? Yes Repair the Reference Voltage circuit (C26) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR SIGNAL CIRCUIT (C32) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the Recirculation Door Signal circuit (C32). Is the resistance below 100k Ohms? Yes Repair the Recirculation Door Signal circuit (C32) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO GROUND Measure the resistance between ground and the Reference Voltage circuit (C26). Is the resistance below 100k Ohms? Yes Repair the Reference Voltage circuit (C26) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 7
  7. CHECK THE RECIRCULATION DOOR Remove the Recirculation Door Actuator and check the Recirculation Door for binding and full travel. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . Were there any problems found? Yes Repair or replace the Recirculation Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 8
  8. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  9. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE RECIRCULATION DOOR Remove the Recirculation Door Actuator and check the Recirculation Door for binding and full travel. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . Were there any problems found? Yes Repair or replace the Recirculation Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . Using the scan tool, erase HVAC DTCs. Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset during HVAC Actuator Calibration Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE RECIRCULATION DOOR Remove the Recirculation Door Actuator and check the Recirculation Door stops, linkage (stripped or cracked) and door. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . Were there any problems found? Yes Repair or replace the Recirculation Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, RECIRCULATION DOOR, REMOVAL»(ref-646220-S14092609022014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.

B10B2-00-A/C COOL DOWN TEST PERFORMANCE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

CONDITIONS FOR A/C COOLDOWN TEST

  1. The following condition must be met before running the A/C Cooldown test. No Powertrain Control Module (PCM) DTCs present. No Communication DTCs present. Condenser cooling fan working properly. No active HVAC evaporator temperature sensor, sun sensor, recirculation, mode, or blend door actuator DTCs present. The refrigerant system must be fully charged. The blower motor must operate correctly in all speeds. The evaporator temperature must be above 12.7° C (55° F). The A/C compressor must be turned off. Blower must be on high. Are all of the above conditions met before running the A/C Cooldown Test? Yes Go to the Service Information for additional Cooldown Test related diagnostic information and testing procedures and repair as necessary. Refer to «DIAGNOSIS AND TESTING»(ref-646220-S27172954272014072800000) . NOTE: Run the Cooldown Test again after any repairs are performed. If the Cooldown Test passes, testing is complete. No Run the A/C Cooldown test again with the above test conditions.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK IF THE IN-CAR TEMPERATURE SENSOR IS PROPERLY CONNECTED Turn the ignition off to the lock position. Check the connector to In-Car Temperature Sensor for proper connection and the terminals for damage or corrosion. Is the In-Car Temperature Sensor connector properly connected and terminals undamaged or corroded? Yes Go To 3 No Repair connector and terminals as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  3. CHECK THE (C36) IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C2 harness connector. Disconnect the In-Car Temperature Sensor harness connector. Measure the resistance between ground and the (C36) In-Car Temperature Sensor Signal circuit. Is the resistance less than 100k Ohms? Yes Repair the In-Car Temperature Sensor Signal circuit (C36) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE IN-CAR TEMPERATURE SENSOR Remove the In-Car Temperature Sensor. Measure the resistance of the In-Car Temperature Sensor and compare the resistance to the In-Car Temperature Sensor Resistance Chart in the Service Information. Is the In-Car Temperature Sensor within the specified limits of In-Car Temperature Sensor Resistance Chart? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace the In-Car Temperature Sensor in accordance to the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK IF THE IN-CAR TEMPERATURE SENSOR IS PROPERLY CONNECTED Turn the ignition off to the lock position. Check the connector to In-Car Temperature Sensor for proper connection and the terminals for damage or corrosion. Is the In-Car Temperature Sensor connector properly connected and terminals undamaged or corroded? Yes Go To 3 No Repair connector and terminals as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  3. CHECK THE (C36) IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the In-Car Temperature Sensor harness connector. Ignition on, engine not running. Measure the voltage of the (C36) In-Car Temperature Sensor Signal circuit. Is there any voltage present? Yes Repair the In-Car Temperature Sensor Signal circuit (C36) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE (C36) IN-CAR TEMPERATURE SENSOR SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the In-Car Temperature Sensor Signal circuit between the A/C Heater Module C1 harness connector and the In-Car Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the In-Car Temperature Sensor Signal circuit for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE IN-CAR TEMPERATURE SENSOR Remove the In-Car Temperature Sensor. Measure the resistance of the In-Car Temperature Sensor and compare the resistance to the In-Car Temperature Sensor Resistance Chart in the Service Information. Is the In-Car Temperature Sensor within the specified limits of In-Car Temperature Sensor Resistance Chart? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace the In-Car Temperature Sensor in accordance to the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE MODE DOOR SIGNAL CIRCUIT (C235) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Mode Door Actuator harness connector. Measure the resistance between ground and the Mode Door Signal circuit (C235). Is the resistance below 100k Ohms? Yes Repair the Mode Door Signal circuit (C235) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO GROUND Measure the resistance between ground and the Reference Voltage circuit (C26). Is the resistance below 100k Ohms? Yes Repair the Reference Voltage circuit (C26) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE MODE DOOR SIGNAL CIRCUIT (C235) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Mode Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Mode Door Signal circuit (C235). Is there any voltage present? Yes Repair the Mode Door Signal circuit (C235) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO VOLTAGE Measure the voltage of the Reference Voltage circuit (C26). Is there any voltage present? Yes Repair the Reference Voltage circuit (C26) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR ACTUATOR Turn the ignition off to the lock position. Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE MODE DOOR SIGNAL CIRCUIT (C235) FOR AN OPEN Turn the ignition off to the lock position. Disconnect the A/C Heater Module C2 harness connector. Disconnect the Mode Door Actuator harness connector. Measure the resistance of the Mode Door Signal circuit (C235) between the A/C Heater Module C2 harness connector and the Mode Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Mode Door Signal circuit (C235) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR AN OPEN Measure the resistance of the Reference Voltage circuit (C26) between the A/C Heater Module C2 harness connector and the Mode Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Reference Voltage circuit (C26) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE MODE DOOR SIGNAL CIRCUIT (C235) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C2 harness connector. Disconnect the Mode Door Actuator harness connector. Measure the resistance between the Mode Door Signal circuit (C235) and the Reference Voltage circuit (C26). Is the resistance below or within the range of 1.5 - 2.18 Ohms? Yes Repair the Mode Door Signal circuit (C235) and Reference Voltage circuit (C26) for a short to each other. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 9
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did any other HVAC DTCs set while performing the Actuator Calibration Test? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK THE MODE DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C2 harness connector. Disconnect the Mode Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Mode Door Signal circuit (C235). Is there any voltage present? Yes Repair the Mode Door Signal circuit (C235) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO VOLTAGE Measure the voltage of the Reference Voltage circuit (C26). Is there any voltage present? Yes Repair the Reference Voltage circuit (C26) circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR SIGNAL CIRCUIT (C235) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the Mode Door Signal circuit (C235). Is the resistance below 100k Ohms? Yes Repair the Mode Door Signal circuit (C235) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO GROUND Measure the resistance between ground and the Reference Voltage circuit (C26). Is the resistance below 100k Ohms? Yes Repair the Reference Voltage circuit (C26) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 7
  7. CHECK THE MODE DOOR Remove the Mode Door Actuator and check the Mode Door for binding and full travel. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . Were there any problems found? Yes Repair or replace the Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 8
  8. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  9. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE MODE DOOR Remove the Mode Door Actuator and check the Mode Door for binding and full travel. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . Were there any problems found? Yes Repair or replace the Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . Using the scan tool, erase HVAC DTCs. Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset during HVAC Actuator Calibration Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC System Test? Yes Go To 4 No Go To 6
  4. CHECK THE MODE DOOR Remove the Mode Door Actuator and check the Mode Door for binding and full travel. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . Were there any problems found? Yes Repair or replace the Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR, REMOVAL»(ref-646220-S42409516572014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Passenger Blend Door Actuator harness connector. Measure the resistance between ground and the Passenger Blend Door Signal circuit (C24). Is the resistance below 100k Ohms? Yes Repair the Passenger Blend Door Signal circuit (C24) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR A SHORT TO GROUND Measure the resistance between ground and the Blend Door Driver circuit (C136, C138). Is the resistance below 100k Ohms? Yes Repair the Blend Door Driver circuit (C136, C138) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Passenger Blend Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Passenger Blend Door Signal circuit (C24). Is there any voltage present? Yes Repair the Passenger Blend Door Signal circuit (C24) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR A SHORT TO VOLTAGE Measure the voltage of the Blend Door Driver circuit (C136, C138). Is there any voltage present? Yes Repair the Blend Door Driver circuit (C136, C138) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) FOR AN OPEN Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Passenger Blend Door Actuator harness connector. Measure the resistance of the Passenger Blend Door Signal circuit (C24) between the A/C Heater Module C1 harness connector and the Passenger Blend Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Passenger Blend Door Signal circuit (C24) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR AN OPEN Measure the resistance of the Blend Door Driver circuit (C136, C138) between the A/C Heater Module C1 harness connector and the Passenger Blend Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blend Door Driver circuit (C136, C138) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) AND BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR A SHORT TO EACH OTHER Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Passenger Blend Door Actuator harness connector. Measure the resistance between the Passenger Blend Door Signal Circuit (C24) and the Blend Door Driver circuit (C136, C138). Is the resistance below or within the range of 1.5 - 2.18 Ohms? Yes Repair the Passenger Blend Door Signal Circuit (C24) and the Blend Door Driver circuit (C136, C138) for a short to each other. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 9
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did any other HVAC DTCs set while performing the Actuator Calibration Test? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Passenger Blend Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Passenger Blend Door Signal circuit (C24). Is there any voltage present? Yes Repair the Passenger Blend Door Signal circuit (C24) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR A SHORT TO VOLTAGE Measure the voltage of the Blend Door Driver circuit (C136, C138). Is there any voltage present? Yes Repair the Blend Door Driver circuit (C136, C138) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR SIGNAL CIRCUIT (C24) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the Passenger Blend Door Signal circuit (C24). Is the resistance below 100k Ohms? Yes Repair the Passenger Blend Door Signal circuit (C24) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE BLEND DOOR DRIVER CIRCUIT (C136, C138) FOR A SHORT TO GROUND Measure the resistance between ground and the Blend Door Driver circuit (C136, C138). Is the resistance below 100k Ohms? Yes Repair the Blend Door Driver circuit (C136, C138) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 7
  7. CHECK THE PASSENGER BLEND DOOR Remove the Passenger Blend Door Actuator and check the Passenger Blend Door for binding and full travel. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Passenger Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 8
  8. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  9. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE PASSENGER BLEND DOOR Remove the Passenger Blend Door Actuator and check the Passenger Blend Door for binding and full travel. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Passenger Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs. With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset during HVAC Actuator Calibration Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC System Test? Yes Go To 4 No Go To 6
  4. CHECK THE PASSENGER BLEND DOOR Remove the Passenger Blend Door Actuator and check the Passenger Blend Door stops, linkage (stripped or cracked) and door. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Passenger Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE PASSENGER BLEND DOOR ACTUATOR Replace the Passenger Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE DRIVER BLEND DOOR SIGNAL CIRCUIT (C233) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Driver Blend Door Actuator harness connector. Measure the resistance between ground and the Driver Blend Door Signal circuit (C233). Is the resistance below 100k Ohms? Yes Repair the Driver Blend Door Signal circuit (C233) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C137, C139) FOR A SHORT TO GROUND Measure the resistance between ground and the Blend Door Driver circuit (C137, C139). Is the resistance below 100k Ohms? Yes Repair the Blend Door Driver circuit (C137, C139) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE DRIVER BLEND DOOR SIGNAL CIRCUIT (C233) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Driver Blend Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Driver Blend Door Signal circuit (C233). Is there any voltage present? Yes Repair the Driver Blend Door Signal circuit (C233) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C137, C139) FOR A SHORT TO VOLTAGE Measure the voltage of the Blend Door Driver circuit (C137, C139). Is there any voltage present? Yes Repair the Blend Door Driver circuit (C137, C139) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 6
  3. CHECK THE DRIVER BLEND DOOR SIGNAL CIRCUIT (C233) FOR AN OPEN Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Driver Blend Door Actuator harness connector. Measure the resistance of the Driver Blend Door Signal circuit (C233) between the A/C Heater Module C1 harness connector and the Driver Blend Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Driver Blend Door Signal circuit (C233) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C137, C139) FOR AN OPEN Measure the resistance of the Blend Door Driver circuit (C137, C139) between the A/C Heater Module C1 harness connector and the Driver Blend Door Actuator harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Blend Door Driver circuit (C137, C139) for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE DRIVER BLEND DOOR SIGNAL CIRCUIT (C233) AND BLEND DOOR DRIVER CIRCUIT (C137, C139) FOR A SHORT TO EACH OTHER Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Driver Blend Door Actuator harness connector. Measure the resistance between the Driver Blend Door Signal circuit (C233) and Blend Door Driver circuit (C137, C139). Is the resistance below or within the range of 1.5 - 2.18 Ohms? Yes Repair the Driver Blend Door Signal circuit (C233) and Blend Door Driver circuit (C137, C139) for a short. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 9
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did any other HVAC DTCs set while performing the Actuator Calibration Test? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK THE DRIVER BLEND DOOR SIGNAL CIRCUIT (C233) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Driver Blend Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the Driver Blend Door Signal circuit (C233). Is there any voltage present? Yes Repair the Driver Blend Door Signal circuit (C233) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE BLEND DOOR DRIVER CIRCUIT (C137, C139) FOR A SHORT TO VOLTAGE Measure the voltage of the Common Door Driver circuit. Is there any voltage present? Yes Repair the Blend Door Driver circuit (C137, C139) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE BLEND DOOR SIGNAL CIRCUIT (C233) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the Blend Door Signal circuit (C233). Is the resistance below 100k Ohms? Yes Repair the Driver Blend Door Signal circuit (C233) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE BLEND DOOR SIGNAL CIRCUIT (C233) FOR A SHORT TO GROUND Measure the resistance between ground and the Blend Door Driver circuit (C137, C139). Is the resistance below 100k Ohms? Yes Repair the Blend Door Driver circuit (C137, C139) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 7
  7. CHECK THE DRIVER BLEND DOOR Remove the Driver Blend Door Actuator and check the Driver Blend Door for binding and full travel. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Driver Blend Door as necessary in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 8
  8. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  9. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE DRIVER BLEND DOOR Remove the Driver Blend Door Actuator and check the Driver Blend Door for binding and full travel. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Driver Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs. With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open, Performance, or Short to Ground or Voltage DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 3
  3. PERFORM HVAC ACTUATOR CALIBRATION TEST With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 4 No Go To 6
  4. CHECK THE DRIVER BLEND DOOR Remove the Driver Blend Door Actuator and check the Driver Blend Door for binding and full travel. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . Were there any problems found? Yes Repair or replace the Driver Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, HVAC, REMOVAL»(ref-646220-S29875769122014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE DRIVER BLEND DOOR ACTUATOR Replace the Driver Blend Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, BLEND DOOR, REMOVAL»(ref-646220-S39183118692014072800000) . With the scan tool, erase HVAC DTCs. With the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.

B11D3-00-A/C COOLDOWN TEST PERFORMANCE - COMPRESSOR NOT ENGAGED

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

  1. CHECK FOR ACTIVE BUS COMMUNICATION DTCS Ignition on, engine not running. Using the scan tool, read BCM DTCs. Are there any Active BUS Communication DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK FOR STORED BUS COMMUNICATION DTCS Ignition on, engine not running. Using the scan tool, read DTCs. Are there any inactive or stored BUS Communication DTCs present? Yes Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) . No Go To 3
  3. CHECK FOR PCM A/C COMPRESSOR DTCS Ignition on, engine not running. Using the scan tool, read PCM DTCs. Are there any PCM A/C Compressor DTCs present? Yes Refer to the «DTC INDEX»(ref-646339) article and perform the appropriate diagnostic procedure. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE A/C COMPRESSOR Ignition on, engine running. Using the A/C heater Control, request A/C maximum cool. Does the A/C Compressor Clutch engage? Yes Go To 5 No Refer to «COMPRESSOR, A/C, DIAGNOSIS AND TESTING»(ref-646220-S19982084312014072800000) .
  5. CHECK IF THE DTC RESETS Turn the ignition off to the lock position. Ignition on, engine not running. Using the scan tool, erase HVAC DTCs. Turn the ignition off to the lock position. Ignition on, engine not running. Using the scan tool, perform the A/C Cooldown Test. Follow the instructions on the scan tool. Using the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.

B11D5-00-A/C COOLDOWN TEST PERFORMANCE - EVAP TEMP SENSOR ERROR

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, perform an A/C Cooldown Test. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 4
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did any other HVAC DTCs set while performing the Actuator Calibration Test? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK THE EVAPORATOR TEMPERATURE SENSOR Replace the Evaporator Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Using the scan tool, erase HVAC DTCs. Cycle the ignition off for 30 seconds then back on. Using the scan tool, perform an A/C Cooldown Test. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  4. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK THE A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on. Slowly Turn the Blower Speed Control knob from Low to High multiple times for a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Mode Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Mode Control Switch being held in or stuck On? Yes The A/C Heater control cannot be repaired or adjusted and must be replaced if inoperative or damaged but it might be cleanable if external debris is inhibiting the proper operation of the control switch or knob. If you are unable to clean the control to where it can function properly, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on and wait a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Does the scan tool display this DTC as Active or is the status of the switch reading On? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  1. A/C HEATER CONTROL Turn the ignition on. Using the scan tool, erase HVAC DTCs. Turn the ignition off for 10 seconds, and then turn the ignition on. Slowly Turn the Left Temperature Control from full cold to full hot several times for a minimum of 30 seconds. Using the scan tool, read HVAC DTCs. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 2
  2. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK LEFT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C164) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Left Floor Duct Temperature Sensor harness connector. Measure the resistance between ground and the Left Floor Duct Temperature Sensor Signal circuit (C164). Is the resistance below 100k Ohms? Yes Repair the Left Floor Duct Temperature Sensor Signal circuit (C164) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK LEFT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C164) FOR A SHORT TO THE SENSOR GROUND CIRCUIT (C163) Measure the resistance between the Left Floor Duct Temperature Sensor Signal circuit (C164) and the Sensor Ground circuit (C163). Is the resistance below 100k Ohms? Yes Repair the Left Floor Duct Temperature Sensor Signal circuit (C164) and the Sensor Ground circuit (C163). Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE LEFT FLOOR DUCT TEMPERATURE SENSOR Replace the Left Floor Duct Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Cycle the ignition off for 30 seconds then back on. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE LEFT FLOOR DUCT TEMPERATURE SENSOR Turn the ignition off to the lock position. Disconnect the Left Floor Duct Temperature Sensor harness connector. NOTE: Due to the small terminal and pin size of the Left Floor Duct Temperature Sensor and harness connector, make sure to not damage the terminals in this process. Connect a jumper wire between the Left Floor Duct Temperature Sensor Signal circuit and the Sensor Ground circuit in the Left Floor Duct Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Left Floor Duct Temperature Sensor (C164) voltage. Is the voltage below 0.2 of a volt? Yes Replace the Left Floor Duct Temperature Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE LEFT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C164) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the jumper wire from the previous step. Disconnect the A/C Heater Module C1 harness connector. Ignition on, engine not running. Measure the voltage of the Left Floor Duct Temperature Sensor Signal circuit (C164). Is voltage above 0.2 of a volt? Yes Repair the Left Floor Duct Temperature Sensor Signal circuit (C164) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE LEFT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C164) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Left Floor Duct Temperature Sensor Signal circuit (C164) between the A/C Heater Module C1 harness connector and the Left Floor Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Left Floor Duct Temperature Sensor Signal circuit (C164) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SENSOR GROUND CIRCUIT (C163) FOR AN OPEN Measure the resistance of the Sensor Ground circuit (C163) between the A/C Heater Module C1 harness connector and the Left Floor Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Sensor Ground circuit (C163) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK RIGHT FLOOR DUCT TEMPERATURE SENSOR SIGNAL (C130) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Right Floor Duct Temperature Sensor harness connector. Measure the resistance between ground and the Right Floor Duct Temperature Sensor Signal circuit (C130). Is the resistance below 100k Ohms? Yes Repair the Right Floor Duct Temperature Sensor Signal circuit (C130) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK RIGHT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C130) FOR A SHORT TO THE SENSOR GROUND CIRCUIT (C163) Measure the resistance between the Right Floor Duct Temperature Sensor Signal circuit (C130) and the Sensor Ground circuit (C163). Is the resistance below 100k Ohms? Yes Repair the Right Floor Duct Temperature Sensor Signal circuit (C130) for a short to the Sensor Ground circuit (C163). Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE RIGHT FLOOR DUCT TEMPERATURE SENSOR Replace the Right Floor Duct Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Cycle the ignition off for 30 seconds then back on. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE RIGHT FLOOR DUCT TEMPERATURE SENSOR Turn the ignition off to the lock position. Disconnect the Right Floor Duct Temperature Sensor harness connector. NOTE: Due to the small terminal and pin size of the Right Floor Duct Temperature Sensor and harness connector, make sure to not damage the terminals in this process. Connect a jumper wire between the Right Floor Duct Temperature Sensor Signal circuit (C130) and the Sensor Ground circuit (C163) in the Right Floor Duct Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Right Floor Duct Temperature Sensor voltage. Is the voltage below 0.2 of a volt? Yes Replace the Right Floor Duct Temperature Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE RIGHT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C130) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the jumper wire from the previous step. Disconnect the A/C Heater Module C1 harness connector. Ignition on, engine not running. Measure the voltage of the Right Floor Duct Temperature Sensor Signal circuit (C130). Is voltage above 0.2 of a volt? Yes Repair the Right Floor Duct Temperature Sensor Signal circuit (C130) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE RIGHT FLOOR DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C130) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Right Floor Duct Temperature Sensor Signal circuit (C130) between the A/C Heater Module C1 harness connector and the Right Floor Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Right Floor Duct Temperature Sensor Signal circuit (C130) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SENSOR GROUND CIRCUIT (C163) FOR AN OPEN Measure the resistance of the Sensor Ground circuit (C163) between the A/C Heater Module C1 harness connector and the Right Floor Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Sensor Ground circuit (C163) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK LEFT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C162) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Left Panel Duct Temperature Sensor harness connector. Measure the resistance between ground and the Left Panel Duct Temperature Sensor Signal circuit (C162). Is the resistance below 100k Ohms? Yes Repair the Left Panel Duct Temperature Sensor Signal circuit (C162) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK LEFT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C162) FOR A SHORT TO THE SENSOR GROUND CIRCUIT (C163) Measure the resistance between the Left Panel Duct Temperature Sensor Signal circuit (C162) and the Sensor Ground circuit (C163). Is the resistance below 100k Ohms? Yes Repair the Left Panel Duct Temperature Sensor Signal circuit (C162) for a short to the Sensor Ground circuit (C163). Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE LEFT PANEL DUCT TEMPERATURE SENSOR Replace the Left Panel Duct Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Cycle the ignition off for 30 seconds then back on. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE LEFT PANEL DUCT TEMPERATURE SENSOR Turn the ignition off to the lock position. Disconnect the Left Panel Duct Temperature Sensor harness connector. NOTE: Due to the small terminal and pin size of the Left Panel Duct Temperature Sensor and harness connector, make sure to not damage the terminals in this process. Connect a jumper wire between the Left Panel Duct Temperature Sensor Signal circuit (C162) and the Sensor Ground circuit (C163) in the Left Panel Duct Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Left Panel Duct Temperature Sensor voltage. Is the voltage below 0.2 of a volt? Yes Replace the Left Panel Duct Temperature Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE LEFT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C162) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the jumper wire from the previous step. Disconnect the A/C Heater Module C1 harness connector. Ignition on, engine not running. Measure the voltage of the Left Panel Duct Temperature Sensor Signal circuit (C162). Is voltage above 0.2 of a volt? Yes Repair the Left Panel Duct Temperature Sensor Signal circuit (C162) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE LEFT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C162) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Left Panel Duct Temperature Sensor Signal circuit (C162) between the A/C Heater Module C1 harness connector and the Left Panel Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Left Panel Duct Temperature Sensor Signal circuit (C162) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SENSOR GROUND CIRCUIT (C163) FOR AN OPEN Measure the resistance of the Sensor Ground circuit (C163) between the A/C Heater Module C1 harness connector and the Left Panel Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Sensor Ground circuit (C163) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 5
  2. CHECK RIGHT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C134) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Right Panel Duct Temperature Sensor harness connector. Measure the resistance between ground and the Right Panel Duct Temperature Sensor Signal circuit (C134). Is the resistance below 100k Ohms? Yes Repair the Right Panel Duct Temperature Sensor Signal circuit (C134) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK RIGHT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C134) FOR A SHORT TO THE SENSOR GROUND CIRCUIT (C163) Measure the resistance between the Right Panel Duct Temperature Sensor Signal circuit (C134) and the Sensor Ground circuit (C163). Is the resistance below 100k Ohms? Yes Repair the Right Panel Duct Temperature Sensor Signal circuit (C134) for a short to the Sensor Ground circuit (C163). Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE RIGHT PANEL DUCT TEMPERATURE SENSOR Replace the Right Panel Duct Temperature Sensor in Accordance with the Service Information. Refer to «SENSOR, EVAPORATOR TEMPERATURE, REMOVAL»(ref-646220-S24785801502014072800000) . Cycle the ignition off for 30 seconds then back on. With the scan tool, read HVAC DTCs. Does this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE RIGHT PANEL DUCT TEMPERATURE SENSOR Turn the ignition off to the lock position. Disconnect the Right Panel Duct Temperature Sensor harness connector. NOTE: Due to the small terminal and pin size of the Right Panel Duct Temperature Sensor and harness connector, make sure to not damage the terminals in this process. Connect a jumper wire between the Right Panel Duct Temperature Sensor Signal circuit (C134) and the Sensor Ground circuit (C163) in the Right Panel Duct Temperature Sensor harness connector. Ignition on, engine not running. With the scan tool, read the Right Panel Duct Temperature Sensor voltage. Is the voltage below 0.2 of a volt? Yes Replace the Right Panel Duct Temperature Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE RIGHT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C134) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the jumper wire from the previous step. Disconnect the A/C Heater Module C1 harness connector. Ignition on, engine not running. Measure the voltage of the Right Panel Duct Temperature Sensor Signal circuit (C134). Is voltage above 0.2 of a volt? Yes Repair the Right Panel Duct Temperature Sensor Signal circuit (C134) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE RIGHT PANEL DUCT TEMPERATURE SENSOR SIGNAL CIRCUIT (C134) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Right Panel Duct Temperature Sensor Signal circuit (C134) between the A/C Heater Module C1 harness connector and the Right Panel Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Right Panel Duct Temperature Sensor Signal circuit (C134) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SENSOR GROUND CIRCUIT (C163) FOR AN OPEN Measure the resistance of the Sensor Ground circuit (C163) between the A/C Heater Module C1 harness connector and the Right Panel Duct Temperature Sensor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the Sensor Ground circuit (C163) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 3
  2. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Control C1 harness connector. Disconnect the Mode and Blend Door Actuator harness connectors. Measure the resistance between ground and the Reference Voltage circuit (C26). Is the resistance below 100k Ohms? Yes Repair the Reference Voltage circuit (C26) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  3. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 3
  2. CHECK THE REFERENCE VOLTAGE CIRCUIT (C26) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Control harness connector. Disconnect the Mode Door and Blend Door Actuator harness connectors. Ignition on, engine not running. Measure the voltage of the Reference Voltage circuit (C26). Is there any voltage present? Yes Repair the Reference Voltage circuit (C26) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «CONTROL, A/C AND HEATER, REMOVAL»(ref-646220-S12652180562014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  3. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE (C27) VARIABLE A/C CONTROL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Variable A/C Compressor harness connector. Measure the resistance between ground and the (C27) Variable A/C Compressor control circuit. Is the resistance below 10k Ohms? Yes Repair the (C27) Variable A/C Compressor control circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE VARIABLE A/C COMPRESSOR Diagnose the Variable A/C Compressor in accordance with the Service Information. Refer to «DIAGNOSIS AND TESTING»(ref-646220-S27172954272014072800000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, INSTALLATION»(ref-646224-S42105495962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE (C27) VARIABLE A/C COMPRESSOR CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Variable A/C Compressor harness connector. Ignition on, engine not running. Measure the voltage of the (C27) Variable A/C Compressor control circuit. Is there any voltage present? Yes Repair the (C27) Variable A/C Compressor control circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE VARIABLE A/C COMPRESSOR Diagnose the Variable A/C Compressor in accordance with the Service Information. Refer to «DIAGNOSIS AND TESTING»(ref-646220-S27172954272014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, INSTALLATION»(ref-646224-S42105495962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 3 No Go To 2
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC change from Stored to Active while performing the HVAC Actuator Calibration Test? Yes Go To 3 No Go To 5
  3. CHECK THE (C27) VARIABLE A/C COMPRESSOR CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Variable A/C Compressor harness connector. Measure the resistance of the (C27) Variable A/C Compressor control circuit between the A/C Heater Module C1 harness connector and the Variable A/C Compressor harness connector. Is the resistance above 1.0 Ohm? Yes Repair the (C27) Variable A/C Compressor control circuit for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE VARIABLE A/C COMPRESSOR Diagnose the Variable A/C Compressor in accordance with the Service Information. Refer to «DIAGNOSIS AND TESTING»(ref-646220-S27172954272014072800000) . With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, INSTALLATION»(ref-646224-S42105495962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 4
  2. CHECK SUN SENSOR SIGNAL CIRCUIT (G39) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Sun Sensor harness connector. Measure the resistance between ground and the Sun Sensor 1 Signal circuit (G39). Is the resistance below 100k Ohms? Yes Repair the Sun Sensor 1 Signal circuit (G39) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE SUN SENSOR AND A/C HEATER MODULE Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset while performing the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  4. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE SUN SENSOR 1 SIGNAL CIRCUIT (G39) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the Sun Sensor harness connector. Disconnect the A/C Heater Module C1 harness connector. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. Check the voltage of the Sun Sensor 1 Signal circuit (G39). Is there any voltage present? Yes Repair the Sun Sensor 1 Signal circuit (G39) for an short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE SUN SENSOR 1 SIGNAL CIRCUIT (G39) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Sun Sensor 1 Signal circuit (G39) between the A/C Heater Module C1 harness connector and the Sun Sensor harness connector. Is the resistance above 5.0 Ohms? Yes Repair the Sun Sensor 1 Signal circuit (G39) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE SUN SENSOR GROUND CIRCUIT (G939) FOR AN OPEN Measure the resistance of the (G939) Sun Sensor Return circuit between the A/C Heater Module C1 harness connector and the Sun Sensor harness connector. Is the resistance above 5.0 Ohms? Yes Repair the Sun Sensor Ground circuit (G939) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SUN SENSOR AND A/C HEATER MODULE Turn the ignition off to the lock position. Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did the DTC reset during or after the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 4
  2. CHECK SUN SENSOR 2 SIGNAL CIRCUIT (G139) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Sun Sensor harness connector. Measure the resistance between ground and the Sun Sensor 2 Signal circuit (G139). Is the resistance below 100k Ohms? Yes Repair the Sun Sensor 2 Signal circuit (G139) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE SUN SENSOR AND A/C HEATER MODULE Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset while performing the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  4. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE SUN SENSOR 2 SIGNAL CIRCUIT (G139) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the Sun Sensor harness connector. Disconnect the A/C Heater Control C1 harness connector. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. Check the voltage of the Sun Sensor 2 Signal circui (G139). Is there any voltage present? Yes Repair the Sun Sensor 2 Signal circuit (G139) for an short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE SUN SENSOR 2 SIGNAL CIRCUIT (G139) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Sun Sensor 2 Signal circuit (G139) between the A/C Heater Control C1 harness connector and the Sun Sensor harness connector. Is the resistance above 5.0 Ohms? Yes Repair the Sun Sensor 2 Signal circuit (G139) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 4
  4. CHECK THE SUN SENSOR GROUND CIRCUIT (G939) FOR AN OPEN Measure the resistance of the Sun Sensor Ground Circuit (G939) between the A/C Heater Control C1 harness connector and the Sun Sensor harness connector. Is the resistance above 5.0 Ohms? Yes Repair the Sun Sensor Ground Circuit (G939) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE SUN SENSOR AND A/C HEATER CONTROL Turn the ignition off to the lock position. Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did the DTC reset during or after the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 4
  2. CHECK AUTO HEADLAMPS SIGNAL CIRCUIT (L24) FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Sun Sensor harness connector. Measure the resistance between ground and the Auto Headlamps Signal circuit (L24). Is the resistance below 100k Ohms? Yes Repair the Auto Headlamps Signal circuit (L24) for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE SUN SENSOR AND A/C HEATER MODULE Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset while performing the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  4. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK IF THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No Go To 6
  2. CHECK THE AUTO HEADLAMPS SIGNAL CIRCUIT (L24) FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Disconnect the Sun Sensor harness connector. Ignition on, engine not running. Measure the voltage of the Auto Headlamps Signal circuit (L24). Is there any voltage present? Yes Repair the Auto Headlamps Signal circuit (L24) for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 3
  3. CHECK THE AUTO HEADLAMPS SIGNAL CIRCUIT (L24) FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the Auto Headlamps Signal circuit (L24) between the A/C Heater Module C1 harness connector and the Sun Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Go To 4 No Repair the Auto Headlamps Signal circuit (L24) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  4. CHECK THE SUN SENSOR GROUND CIRCUIT (G939) FOR AN OPEN Measure the resistance of the Sun Sensor Ground circuit (G939) between the A/C Heater Module C1 harness connector and the Sun Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Go To 5 No Repair the Sun Sensor Ground circuit (G939) for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE SUN SENSOR AND A/C HEATER MODULE Replace the Sun Sensor in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . Did this DTC reset while performing the HVAC Verification Test? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR CHARGING SYSTEM DTCS Using the scan tool, read PCM DTCs. Are there any charging system DTCs present in the Powertrain Control Module (PCM)? Yes Refer to the «DTC INDEX»(ref-646339) article and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK FOR BODY CONTROL MODULE DTCS Using the scan tool, read BCM DTCs. Are there any BCM DTCS present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK IF THE DTC IS ACTIVE Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 7
  4. CHECK THE FUSED IGNITION SWITCH OUTPUT CIRCUIT FOR AN OPEN Ignition on, engine not running. While back probing, measure the voltage of the Fused Ignition Switch Output circuit in the A/C Heater Module C1 harness connector. Is the voltage 9.5 volts or below? Yes Repair the Fused Ignition Switch Output circuit for an open or high resistance. NOTE: If the fuse is open, make sure to check for a short to ground on the Fused Ignition Switch Output circuit. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 5
  5. CHECK THE FUSED B (+) CIRCUIT FOR AN OPEN Ignition on, engine not running. While back probing, measure the voltage of the Fused B (+) circuit in the A/C Heater Module C1 harness connector. Is the voltage 9.5 volts or below? Yes Repair the Fused B (+) circuit for an open or high resistance. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Go To 6
  6. CHECK THE GROUND CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the A/C Heater Module C1 harness connector. Using a 12-volt test light connected to 12-volts, check the Ground circuit. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Repair the Ground circuit for an open. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  7. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.
  1. CHECK FOR CHARGING SYSTEM DTCS Using the scan tool, read PCM DTCs. Are there any charging system DTCs present in the Powertrain Control Module (PCM)? Yes Refer to the «DTC INDEX»(ref-646339) article and perform the appropriate diagnostic procedure. No Go To 2
  2. CHECK FOR BODY CONTROL MODULE DTCS Using the scan tool, read BCM DTCs. Are there any BCM DTCS present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the appropriate diagnostic procedure. No Go To 3
  3. CHECK IF THE DTC IS ACTIVE Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 4 No Go To 5
  4. CHECK IF OTHER CONTROLLER ARE REPORTING AN OVER VOLTAGE CONDITION Ignition on, engine not running. With the scan tool read DTCs. Are any other controllers reporting an over voltage condition? Yes Go to DTC Based Diagnostics and perform the appropriate diagnostic procedure. No Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .
  5. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . No Test complete.

CHECK THE A/C HEATER CONTROL

Repair

  1. Check for any controller software updates if applicable. If an update is available, reprogram the controller with the latest software. If no software updates are available, replace and program the A/C Heater Control in accordance with the Service Information.
  2. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .

CHECK THE VEHICLE CONFIGURATION

Note. The DTC must be active and no BUS communication DTCs present before performing this test. If BUS communication DTCs are present, perform there respective test first. If the DTC is stored, erase the DTC and cycle the ignition. If the DTC resets and changes to active, then proceed.

  1. With the scan tool, check the vehicle configuration stored in the Body Control Module (BCM).
  2. With the scan tool, check the vehicle configuration stored in the A/C Heater Module (HVAC). Pick the answer that best describes your findings: BCM has wrong or no vehicle configuration With the scan tool, program the proper vehicle configuration in the BCM. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . HVAC has wrong vehicle configuration but BCM has correct configuration. Replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) . HVAC and BCM have proper calibration and the DTC is active in the HVAC. Check if other modules such as the Powertrain Control Module (PCM) have the wrong configuration stored in the controller and reprogram or replace as necessary. If all other modules show the proper configuration, replace and program the A/C Heater Module in accordance with the Service Information. Refer to «MODULE, A/C AND HEATER, REMOVAL»(ref-646224-S14918378962014072800000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .

VERIFY DTC IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs. Does the scan tool display: U0019-00-CAN B BUS active? Yes For this code, perform the U0010-00-CAN INTERIOR BUS diagnostic procedure . Refer to the «DTC INDEX»(ref-646339) article. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .

ACTIVE DTC

Note. For vehicle communication problems, use the scan tool to refer to the Network Review Screen. The screen depicts a high level view of the vehicle network. Fault and problem areas appear in red. Selecting any of the network components allows access to the source of the problem.

  1. Turn the ignition on.
  2. With a scan tool, read the active DTCs. Does the scan tool display: U0020-00-CAN B BUS OFF PERFORMANCE? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the U1105-88-CAN B SIGNAL MISSING - BUS OFF diagnostic procedure. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .

VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs. Does the scan tool display: U0140-00LOST COMMUNICATION WITH BCM? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the NO RESPONSE FROM BCM (BODY CONTROL MODULE) diagnostic procedure. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .

VERIFY DTC IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

  1. Turn the ignition on.
  2. With the scan tool, read the active DTCs. Does the scan tool display: U0155-00-LOST COMMUNICATION WITH CLUSTER/CCN? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the U0155-00-Lost Communication with Cluster/CCN diagnostic procedure. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .

VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE

Note. Make sure the battery is fully charged before proceeding.

  1. Turn the ignition on.
  2. With the scan tool, read the active Radio DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the U0184-00-Lost Communication With Radio diagnostic procedure. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .
  1. VERIFY DTC IS ACTIVE Turn the ignition on. With the scan tool, read active DTCs. Is this DTC active? Yes Go To 2 No Go To 3
  2. VERIFY IF THIS DTC SET IN OTHER MODULES Turn the ignition on. With the scan tool, read active DTCs. Are any other modules on the CAN BUS reporting this DTC? Yes Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Refer to «MODULE, POWERTRAIN CONTROL, REMOVAL»(ref-646224-S21304088122014072800000) . Perform the PCM VERIFICATION TEST. Refer to appropriate VERIFICATION TEST in appropriate Testing & Diagnostics article under Engine Performance . No Replace and program the module that set this DTC in accordance with the Service Information. Perform its respective verification test.
  3. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the BCM VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Test complete.
  1. VERIFY DTC IS ACTIVE Turn the ignition on. With the scan tool, read active DTCs. Is this DTC active? Yes Go To 2 No Go To 3
  2. VERIFY IF THIS DTC SET IN OTHER MODULES Turn the ignition on. With the scan tool, read active DTCs. Are any other modules on the CAN BUS reporting this DTC? Yes Replace and program the Body Control Module in accordance with the Service Information. Refer to «MODULE, BODY CONTROL, REMOVAL»(ref-646224-S08964387072014072800000) . Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Replace and program the module that set this DTC in accordance to the Service Information. Perform its respective verification test.
  3. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension. Wiggle the wiring and connectors while checking for shorted and open circuits. Were there any problems found? Yes Repair as necessary. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) . No Test complete.
  1. CHECK FOR ACTIVE DTC Turn the ignition on. With the scan tool, record and erase HVAC DTCs. Wait 30 seconds. With the scan tool, read HVAC DTCs. Is this DTC active? Yes Go To 2 No The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals. Perform the BODY VERIFICATION TEST. Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) .
  2. INSTRUMENT CLUSTER IS ACTIVE ON THE CAN C INTERIOR BUS With the scan tool, select ECU View. Verify that the Instrument Cluster is active on the bus. Is the Instrument Cluster active on the bus? Yes Go To 3 No Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the No Response from Cluster/CCN diagnostic procedure.
  3. DTCS STORED OR ACTIVE IN THE INSTRUMENT CLUSTER Check for DTCs in the Instrument Cluster. Are any DTCs active or stored in the Instrument Cluster? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646245-S07203069032014072800000) and perform the appropriate diagnostic procedure. No Go To 4
  4. ACTIVE DTCS IN THE BCM With the scan tool, select ECU View and select BCM. With the scan tool, read active DTCs. Are any Communication DTCs active in the BCM Park Assist System? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) and perform the appropriate diagnostic procedure. No Replace and program the module that set this DTC in accordance to the Service Information. Perform its respective verification test. Perform the BODY VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646248-S24006549342014072800000) .

VERIFY THE DTC IS ACTIVE

  1. Turn the ignition on.
  2. With the scan tool, read active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-646292-S21791958192014072800000) and perform the NO RESPONSE FROM ICS (INTEGRATED CENTER STACK) diagnostic procedure. No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «STORED LOST COMMUNICATION DTCS»(ref-646292-S31636716672014072800000) .

HVAC VERIFICATION TEST

Perform the following procedures to verify that the repair (s) are valid.

  1. Make sure that all accessories are turned off.
  2. Make sure that the battery is fully charged.
  3. Turn the ignition off to the lock position.
  4. Disconnect all jumper wires and reconnect all previously disconnected components and connectors.
  5. With the scan tool, record and erase all Diagnostic Trouble Codes (DTCs) from ALL modules.
  6. Turn the ignition off, remove the scan tool from the DLC (Data Link Connector). Open the door and close the door. Wait a minimum 30 seconds, then turn the ignition on. Reconnect the scan tool. NOTE: Disconnecting the scan tool and opening and closing the door will allow the controller to enter into sleep mode.
  7. With the scan tool perform the HVAC Actuator Calibration Test.
  8. Start and run the engine for two minutes while operating all functions of the system that caused the original concern.
  9. With the scan tool, check for DTCs in all modules.

Is the original condition still present or are there any other HVAC DTCs present?

Yes

  1. Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure.

No

  1. Repair is complete.

HVAC PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE

For a complete wiring diagram, refer to appropriate SYSTEM WIRING DIAGRAMS article .

Perform the following steps prior to any diagnostic procedure (s).

  1. Testing should only be performed with the battery fully charged to avoid false diagnosis.
  2. With the scan tool, read Powertrain Control Module (PCM) Diagnostic Trouble Codes (DTCs). If PCM DTCs are present, and perform the appropriate diagnostic procedure (s) before proceeding. Refer to the «DTC INDEX»(ref-646339) article .
  3. Depending on the vehicle configuration, with the scan tool, read Body Control Module (BCM) DTCs. If BCM DTCs are present, and perform the appropriate diagnostic procedure (s) before proceeding. Refer to «DIAGNOSIS AND TESTING»(ref-646250-S32637460542014072800000) .
  4. With the scan tool, read HVAC DTCs. Record all Stored, Active, and Pending DTC information.
  5. With the scan tool, read the Environmental Data. Use this data to help identify the conditions in which the DTC was set.
  6. Refer to the When Monitored and Set Conditions for this DTC. DTCs can set at ignition on, at start up, or operating under specific conditions.
  7. Using the wiring diagram as a guide, inspect the wiring and connectors related to this circuit and clean/repair as necessary.
  8. Check for controller software updates if applicable. Some conditions can be corrected by upgrading the controller software. NOTE: If the controller is updated with new software, with the scan tool, perform a HVAC Actuator Calibration Test.
  1. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply.

Did any of the above procedures repair the vehicle?

Yes

  1. Testing is complete.
  2. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-646249-S37322335292014072800000) .

No

  1. Refer to «DIAGNOSTIC CODE INDEX»(ref-646249-S03383037212014072800000) and perform the appropriate diagnostic procedure.

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