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Heating & Air Conditioning - Electrical Diagnostics: Diagnosis Dodge Durango III

Automatic HVAC System 6 illustrations ~18079 words

DIAGNOSTIC CODE INDEX

DTCDescription
B1000-92A/C SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1003-92PANEL MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1006-92BI-LEVEL MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1009-92RECIRCULATION SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B100C-92FLOOR MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B100F-92MIX MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1012-92DEFROST MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1015-92EBL / REAR DEFROST SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B101E-92POWER ON/OFF SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1027-11REAR CONTROL HEAD BLOWER REQUEST INPUT - CIRCUIT SHORT TO GROUND
B1027-12REAR CONTROL HEAD BLOWER REQUEST INPUT - CIRCUIT SHORT TO BATTERY
B102A-92REAR FUNCTION CONTROL SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1030-11EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
B1030-12EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO BATTERY
B1037-92AUTO SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B103A-11REAR MODE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B103A-12REAR MODE DOOR CONTROL - CIRCUIT SHORT TO BATTERY
B103A-13REAR MODE DOOR CONTROL - CIRCUIT OPEN
B103A-2BREAR MODE DOOR CONTROL - WIRES SHORTED TOGETHER
B103A-92REAR MODE DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B103E-00REAR MODE DOOR TRAVEL RANGE TOO SMALL
B103F-00REAR MODE DOOR TRAVEL RANGE TOO LARGE
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
B106E-14REAR BLOWER CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
B106E-12REAR BLOWER CONTROL - CIRCUIT SHORT TO BATTERY
B1084-92LEFT HEATED SEAT REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1087-92RIGHT HEATED SEAT SWITCH INPUT - PERFORMANCE OR INCORRECT OPERATION
B10B2-00A/C COOL DOWN TEST PERFORMANCE
B10E8-14BLOWER MOTOR CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
B10E8-12BLOWER MOTOR CONTROL - CIRCUIT SHORT TO BATTERY
B1142-92MODE UP SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1171-11REAR CONTROL POWER SUPPLY - CIRCUIT SHORT TO GROUND
B1171-12REAR CONTROL POWER SUPPLY - CIRCUIT SHORT TO BATTERY
B1184-92MAIN/LEFT TEMP UP SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1185-92MAIN/LEFT TEMP DOWN SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1186-92RIGHT TEMP UP SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1187-92RIGHT TEMP DOWN SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B1188-92HEATED STEERING WHEEL SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
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 - WIRES SHORTED TOGETHER
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 - WIRES SHORTED TOGETHER
B11CB-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 - WIRES SHORTED TOGETHER
B11CB-92MAIN/LEFT TEMPERATURE DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B11CC-00MAIN/LEFT TEMPERATURE DOOR TRAVEL TOO SMALL
B11CD-00MAIN/LEFT TEMPERATURE DOOR TRAVEL TOO LARGE
B11CE-11REAR TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO GROUND
B11CE-12REAR TEMPERATURE DOOR CONTROL - CIRCUIT SHORT TO BATTERY
B11CE-13REAR TEMPERATURE DOOR CONTROL - CIRCUIT OPEN
B11CE-2BREAR TEMPERATURE DOOR CONTROL - WIRES SHORTED TOGETHER
B11CE-92REAR TEMPERATURE DOOR CONTROL - PERFORMANCE OR INCORRECT OPERATION
B11CF-00REAR TEMPERATURE DOOR TRAVEL RANGE TOO SMALL
B11D0-00REAR TEMPERATURE DOOR TRAVEL RANGE TOO LARGE
B11D1-11REAR CONTROL HEAD TEMPERATURE REQUEST INPUT - CIRCUIT SHORT TO GROUND
B11D1-12REAR CONTROL HEAD TEMPERATURE REQUEST INPUT - CIRCUIT SHORT TO BATTERY
B11D3-00A/C COOLDOWN TEST PERFORMANCE - COMPRESSOR NOT ENGAGED
B11D5-00A/C COOLDOWN TEST PERFORMANCE - EVAP TEMP SENSOR ERROR
B10D6-92LEFT SEAT VENTILATION SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B10D7-92RIGHT SEAT VENTILATION SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11D9-92BLOWER SPEED KNOB REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11DA-96ITOS CABIN TEMPERATURE SENSOR - COMPONENT INTERNAL FAILURE
B11DB-92MODE SWITCH REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11E9-92LEFT TEMPERATURE KNOB REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
B11EA-92RIGHT TEMPERATURE KNOB REQUEST INPUT - PERFORMANCE OR INCORRECT OPERATION
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
B17F2-11REAR HEAD DIMMING CONTROL - CIRCUIT SHORT TO GROUND
B17F2-12REAR HEAD DIMMING CONTROL - CIRCUIT SHORT TO BATTERY
B210A-84SYSTEM VOLTAGE LOW - SIGNAL BELOW ALLOWABLE RANGE
B210B-85SYSTEM VOLTAGE HIGH - SIGNAL ABOVE ALLOWABLE RANGE
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
U0010-00CAN INTERIOR BUS
U0141-00LOST COMMUNICATION WITH IPM (FCM/TIPM)
U0155-00LOST COMMUNICATION WITH CLUSTER/CCN
U0208LOST COMMUNICATION WITH HEATED SEAT CONTROL MODULE

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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Panel 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 Panel 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Bi-level 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 Bi-level 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Floor 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 Floor 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Mix 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 Mix 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Defrost 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 Defrost 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 20 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Power 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 Power 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .

Scheme 1

Scheme 1: B1027-11-REAR CONTROL HEAD BLOWER REQUEST INPUT - CIRCUIT SHORT TO GROUND
Scheme 1: B1027-11-REAR CONTROL HEAD BLOWER REQUEST INPUT - CIRCUIT SHORT TO GROUND

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

  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear Function Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Rear Function Control Switch being held in or stuck On? Yes Clean or repair the A/C Heater Control as necessary. If you are unable to clean the switch to where the switch can work properly, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .

Scheme 2

Scheme 2: B1030-11-EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND
Scheme 2: B1030-11-EVAPORATOR TEMPERATURE SENSOR - CIRCUIT SHORT TO GROUND

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

  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Auto Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Auto 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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 «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the appropriate diagnostic procedure. No Go To 3 .
  3. CHECK THE (C67) REAR MODE DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Control C1 and C2 harness connectors. Disconnect the Rear Mode Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the (C67) Rear Mode Door Driver circuit. Is there any voltage present? Yes Repair the (C67) Rear Mode Door Driver circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 4 .
  4. CHECK THE (C69) REAR MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Measure the voltage of the (C69) Rear Mode Door Common Driver circuit. Is there any voltage present? Yes Repair the (C69) Rear Mode Door Common Driver circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE (C67) REAR MODE DOOR DRIVER CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the (C67) Rear Mode Door Driver circuit. Is the resistance below 100k Ohms? Yes Repair the (C67) Rear Mode Door Driver circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 6 .
  6. CHECK THE (C69) REAR MODE DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (C69) Rear Mode Door Common Driver circuit. Is the resistance below 100k Ohms? Yes Repair the (C69) Rear Mode Door Common Driver circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 7 .
  7. CHECK THE REAR MODE DOOR Remove the Rear Mode Door Actuator and check the Rear Mode Door for binding and full travel. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . Were there any problems found? Yes Repair or replace the Rear Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, A/C AND HEATER, REAR , REMOVAL»(ref-465931-S28946064372012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 8 .
  8. CHECK THE REAR MODE DOOR ACTUATOR Replace the Rear Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 REAR MODE DOOR Remove the Rear Mode Door Actuator and check the Rear Mode Door for binding and full travel. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . Were there any problems found? Yes Repair or replace the Rear Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, A/C AND HEATER, REAR , REMOVAL»(ref-465931-S28946064372012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE REAR MODE DOOR ACTUATOR Replace the Rear Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Short to Voltage, Short to Ground or Open DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 REAR MODE DOOR Remove the Rear Mode Door Actuator and check the Rear Mode Door stops, linkage (stripped or cracked) and door. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . Were there any problems found? Yes Repair or replace the Rear Mode Door as necessary in accordance with the Service Information. Refer to «HOUSING, A/C AND HEATER, REAR , REMOVAL»(ref-465931-S28946064372012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE REAR MODE DOOR ACTUATOR Replace the Rear Mode Door Actuator in accordance with the Service Information. Refer to «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . No Test complete.

Scheme 3

Scheme 3: B1058-11-RECIRCULATION DOOR CONTROL - CIRCUIT SHORT TO GROUND
Scheme 3: B1058-11-RECIRCULATION DOOR CONTROL - CIRCUIT SHORT TO GROUND

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, read HVAC DTCs. Is this DTC active? Yes Allow the A/C Heater Control to cool down for five minutes then Go To 2 . No Go To 2 .
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 3 .
  3. 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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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-465931-S31990113302012042300000) . 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-465931-S12829415182012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465931-S31990113302012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Short to Voltage, Short to Ground or Open DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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-465931-S31990113302012042300000) . 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-465931-S12829415182012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465931-S31990113302012042300000) . 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 Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . No Test complete.

Scheme 4

Scheme 4: B106E-14-REAR BLOWER CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
Scheme 4: B106E-14-REAR BLOWER CONTROL - CIRCUIT SHORT TO GROUND OR OPEN

For a complete wiring diagram, refer to the Wiring Information .

  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Left Heated Seat Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Left Heated Seat 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Right Heated Seat Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Right Heated Seat 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .

B10B2-00-A/C COOL DOWN TEST PERFORMANCE

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

  1. CONDITIONS FOR A/C COOLDOWN TEST 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-465931-S39226618452012042300000) . 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.

Scheme 5

Scheme 5: B10E8-14-BLOWER MOTOR CONTROL - CIRCUIT SHORT TO GROUND OR OPEN
Scheme 5: B10E8-14-BLOWER MOTOR CONTROL - CIRCUIT SHORT TO GROUND OR OPEN

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

  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Up Mode Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Up 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. VERIFY THE DTC IS ACTIVE Ignition on, engine not running. With the scan tool, erase HVAC DTCs. Turn the ignition off, wait 10 seconds, and turn the ignition on. NOTE: Make sure the Rear Control Lockout on the A/C Heater Control is not turned on. With the scan tool, read HVAC DTCs. Does the scan tool display this DTC as active? Yes Go To 2 . No Go To 3 .
  2. CHECK THE (C800) 5 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the A/C Heater Control C2 harness connector. Disconnect the Rear A/C Heater Control harness connector. Measure the resistance between ground and the (C800) 5 Volt Supply circuit. Is the resistance below 100k Ohms? Yes Repair the (C800) 5 Volt Supply circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Left Temperature Up Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Left Temperature Up 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 2 .
  2. A/C HEATER CONTROL Turn the ignition on. With 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. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Left Temperature Down Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Left Temperature Down 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 2 .
  2. A/C HEATER CONTROL Turn the ignition on. With 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. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Right Temperature Up Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Right Temperature Up 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 2 .
  2. A/C HEATER CONTROL Turn the ignition on. With 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. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Right Temperature Down Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Right Temperature Down 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 2 .
  2. A/C HEATER CONTROL Turn the ignition on. With 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. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Heater Steering Wheel Control Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Heated Steering Wheel 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 2 .
  2. A/C HEATER CONTROL Turn the ignition on. With 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. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. CHECK IF DTC IS ACTIVE Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Is this DTC active? Yes Allow the A/C Heater Control to cool down for five minutes then Go To 2 . No Go To 2 .
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 3 .
  3. 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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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. Were there any problems found? Yes Repair or replace the Mode Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «FRONT ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «REAR ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 stops, linkage (stripped or cracked) and door. Were there any problems found? Yes Repair or replace the Mode Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. Refer to «FRONT ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S00027195102012042300000) , or «REAR ACTUATOR, MODE DOOR , REMOVAL»(ref-465931-S35482907012012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Allow the A/C Heater Control to cool down for five minutes then Go To 2 . No Go To 2 .
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 3 .
  3. 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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Passenger Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Passenger Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Allow the A/C Heater Control to cool down for five minutes then Go To 2 . No Go To 2 .
  2. PERFORM HVAC ACTUATOR CALIBRATION TEST Using the scan tool, perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 3 .
  3. 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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Driver Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 DRIVER BLEND DOOR Remove the Driver Blend Door Actuator and check the Driver Blend Door stops, linkage (stripped or cracked) and door. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Driver Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the appropriate diagnostic procedure. No Go To 3 .
  3. CHECK THE (C59) REAR BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the A/C Heater Control C1 and C2 harness connectors. Disconnect the Rear Blend Door Actuator harness connector. Ignition on, engine not running. Measure the voltage of the (C59) Rear Blend Door Driver circuit. Is there any voltage present? Yes Repair the (C59) Rear Blend Door Driver circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 4 .
  4. CHECK THE (C60) REAR BLEND DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO VOLTAGE Measure the voltage of the (C60) Rear Blend Door Common Driver circuit. Is there any voltage present? Yes Repair the (C60) Rear Blend Door Common Driver circuit for a short to voltage. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE (C59) REAR BLEND DOOR DRIVER CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Measure the resistance between ground and the (C59) Rear Blend Door Driver circuit. Is the resistance below 100k Ohms? Yes Repair the (C59) Rear Blend Door Driver circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 6 .
  6. CHECK THE (C60) REAR BLEND DOOR COMMON DRIVER CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (C60) Rear Blend Door Common Driver circuit. Is the resistance below 100k Ohms? Yes Repair the (C60) Rear Blend Door Common Driver circuit for a short to ground. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 7 .
  7. CHECK THE REAR BLEND DOOR Remove the Rear Blend Door Actuator and check the Rear Blend Door for binding and full travel. Refer to «OPERATION»(ref-465931-S01973572152012042300000) . Were there any problems found? Yes Repair or replace the Rear Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, A/C AND HEATER, REAR , REMOVAL»(ref-465931-S28946064372012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 8 .
  8. CHECK THE REAR BLEND DOOR ACTUATOR Replace the Rear Blend Door Actuator in accordance with the Service Information. Refer to «OPERATION»(ref-465931-S01973572152012042300000) . Using the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. With 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 REAR BLEND DOOR Remove the Rear Blend Door Actuator and check the Rear Blend Door for binding and full travel. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Rear Blend Door as necessary in accordance with the Service Information. Refer to «HOUSING, A/C AND HEATER, REAR , REMOVAL»(ref-465931-S28946064372012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE REAR BLEND DOOR ACTUATOR Replace the Rear Blend Door Actuator in accordance with the Service Information. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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, Voltage, or Together DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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 REAR BLEND DOOR Remove the Rear Blend Door Actuator and check the Rear Blend Door stops, linkage (stripped or cracked) and door. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Were there any problems found? Yes Repair or replace the Rear Blend Door as necessary in accordance with the Service Information. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 5 .
  5. CHECK THE REAR BLEND DOOR ACTUATOR Replace the Rear Blend Door Actuator in accordance with the Service Information. Refer to «FRONT ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S24841012482012042300000) , or «REAR ACTUATOR, BLEND DOOR , REMOVAL»(ref-465931-S12870139322012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Ignition on, engine not running. Using the scan tool, read DTCs. Are there any Active BUS Communication DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) 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 Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) and perform the Stored Lost Communication DTCs diagnostic procedure. 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 «DIAGNOSTIC CODE INDEX»(ref-465214) and perform the appropriate diagnostic procedure . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 4 .
  4. CHECK FOR TOTALLY INTEGRATED POWER MODULE DTCS Using the scan tool, read TIPM DTCs. Are there any TIPM DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the appropriate diagnostic procedure. No Go To 5 .
  5. 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 6 . No Refer to «COMPRESSOR, A/C , DIAGNOSIS AND TESTING»(ref-465931-S34204247972012042300000) .
  6. 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Go To 7 .
  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-465964-S02140942132012042300000) . 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 «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) 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-465931-S01640169372012042300000) . 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . 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 Left Seat Ventilation Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Left Seat Ventilation 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Right Seat Ventilation Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Right Seat Ventilation 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465964-S02140942132012042300000) . No Test complete.
  1. REPLACE THE A/C HEATER CONTROL This DTC detects a problem with the ITOS which is an internal sensor circuit in the controller and is not serviceable. Repair Inspect the A/C Heater Control for debris that my be inhibiting the functionality of the Integrated Thermal Optical Sensor and clean as necessary. If no problem is found, replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Mode Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . No Test complete. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465964-S02140942132012042300000) . 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 Right Temperature Control from full cold to full hot 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 «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . 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-465964-S02140942132012042300000) . No Test complete.
  1. CHECK FOR TIPM DTCS Ignition on, engine not running. With the scan tool, read DTCs. Are there any Totally Integrated Power Module (TIPM) DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the appropriate diagnostic procedure. No Go To 2 .
  2. CHECK FOR POWERTRAIN CONTROL MODULE DTCS With the scan tool, read DTCs. Are there any Powertrain Control Module (PCM) charging system DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-465214) and perform the appropriate diagnostic procedure . No Go To 3 .
  3. CHECK FOR HVAC DTCS With the scan tool, read HVAC DTCs. Is the DTC B210D-84-Battery Voltage Low - Signal Below Allowable Range present also? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the diagnostic procedure for DTC B210D-84-Battery Voltage Low - Signal Below Allowable Range. No Go To 4 .
  4. CHECK IF THE DTC IS ACTIVE With the scan tool, read HVAC DTCs. NOTE: It can take up to 60 seconds or more for this DTC to mature. Is this DTC active? Yes Go To 5 . No Go To 6 .
  5. CHECK IF OTHER CONTROLLERS ARE REPORTING AN OVER VOLTAGE CONDITION 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . No Test complete.
  1. CHECK FOR TIPM DTCS Ignition on, engine not running. With the scan tool, read DTCs. Are there any Totally Integrated Power Module (TIPM) DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the appropriate diagnostic procedure. No Go To 2 .
  2. CHECK FOR POWERTRAIN CONTROL MODULE DTCS With the scan tool, read DTCs. Are there any Powertrain Control Module (PCM) charging system DTCs present? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-465214) and perform the appropriate diagnostic procedure . No Go To 3 .
  3. CHECK FOR HVAC DTCS With the scan tool, read HVAC DTCs. Is the DTC B210E-85-Battery Voltage High - Signal Above Allowable Range present also? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the diagnostic procedure for B210E-85-Battery Voltage High - Signal Above Allowable Range. No Go To 4 .
  4. CHECK IF THE DTC IS ACTIVE With the scan tool, read HVAC DTCs. NOTE: It can take up to 60 seconds or more for this DTC to mature. Is this DTC active? Yes Go To 5 . No Go To 6 .
  5. CHECK IF OTHER CONTROLLERS ARE REPORTING AN OVER VOLTAGE CONDITION 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . No Test complete.

Scheme 6

Scheme 6: B210D-84-BATTERY VOLTAGE LOW - SIGNAL BELOW ALLOWABLE RANGE
Scheme 6: B210D-84-BATTERY VOLTAGE LOW - SIGNAL BELOW ALLOWABLE RANGE

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

  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 «DIAGNOSTIC CODE INDEX»(ref-465214) and perform the appropriate diagnostic procedure . No Go To 2 .
  2. CHECK FOR TOTALLY INTEGRATED POWER MODULE DTCS Using the scan tool, read TIPM DTCs. Are there any TIPM DTCs present? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) 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 Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  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-465964-S02140942132012042300000) . No Test complete.
  1. CHECK THE A/C HEATER CONTROL Repair 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. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. 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. With the scan tool, check the vehicle configuration stored in the Totally Integrated Power Module (TIPM). With the scan tool, check the vehicle configuration stored in the A/C Heater Control (HVAC). Pick the answer that best describes your findings: TIPM has wrong or no vehicle configuration With the scan tool, program the proper vehicle configuration in the TIPM. Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . HVAC has wrong vehicle configuration but TIPM has correct configuration. Replace and program the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) . HVAC and TIPM 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 the A/C Heater Control in accordance with the Service Information. Refer to «FRONT CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S00338422832012042300000) , or «REAR CONTROL, A/C AND HEATER , REMOVAL»(ref-465931-S39905459602012042300000) . Perform the HVAC VERIFICATION TEST. Refer to «STANDARD PROCEDURE»(ref-465964-S02140942132012042300000) .
  1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Using the scan tool, read active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the U0010-CAN Interior Bus diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) and perform the Stored Lost Communication DTCs diagnostic procedure.
  1. VERIFY THE DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. With the scan tool, read active DTCs. Is the DTC active at this time? Yes Perform the U0141-Lost Communication with IPM (FCM/TIPM) diagnostic procedure. Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) . . No Perform the Stored Lost Communication DTCs diagnostic procedure. Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) . .
  1. VERIFY DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. With the scan tool, read active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the U0155-Lost Communication with Cluster/CCN diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) and perform the Stored Lost Communication DTCs diagnostic procedure.
  1. VERIFY THE DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and the battery is fully charged before proceeding. Turn the ignition on. With the scan tool, read the active DTCs. Is this DTC active? Yes Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) and perform the U0208-Lost Communication with Heated Seat Control Module diagnostic procedure. No Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) and perform the Stored Lost Communication DTCs diagnostic procedure.

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 «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the appropriate diagnostic procedure.

No

  1. Repair is complete.

HVAC SYSTEM TEST

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

  1. HVAC SYSTEM TEST NOTE: Diagnose and repair all active DTCs before diagnosing and repairing stored DTCs. If active DTCs are present, see «DIAGNOSTIC CODE INDEX»(ref-466007) and perform the appropriate diagnostic procedure. Make a selection based on the symptom, condition, or DTC that you want to diagnose. scan tool Indicates HVAC Not Active On Bus Refer to «DIAGNOSIS AND TESTING»(ref-465945-S21111524872012042300000) and perform the No Response from HVAC diagnostic procedure. Blower Motor Inoperative Refer to «MOTOR, BLOWER , DIAGNOSIS AND TESTING»(ref-465931-S08383505512012042300000) for Blower Motor diagnostic procedures. Actuator Calibration Test Go To 4 . A/C System Performance (Cooldown) Test Go To 2 .
  2. A/C COOLDOWN TEST The following are prerequisites of the A/C Cooldown Test. Verify that the: Refrigerant system has an adequate charge. Check and repair as necessary before proceeding in accordance with the Service Information. Refer to «DIAGNOSIS AND TESTING»(ref-465931-S39226618452012042300000) . Blower motor operates correctly in all speeds. Diagnose and repair all blower related faults before proceeding. Work area ambient temperature is above 16° C (60° F) before proceeding. Move the vehicle to a warmer work area if necessary. Evaporator temperature is above 13° C (55° F) before proceeding. A/C compressor is not running. If the compressor is running, turn the A/C off and allow the evaporator to warm up before proceeding. NOTE: Running the AC Cooldown test will cause the A/C status indicator to flash. One or more status messages will display on the scan tool after running the Cooldown Test. These messages will clear after paging back out of this test function. Therefore, it is important to note all messages before doing so. Start the engine. Turn the Blower control to the high speed position. With the scan tool in HVAC, select System Tests and then select Cooldown test. Allow the test to run to completion. Does the scan tool display a status message that indicates a fault has occurred? Yes See «DIAGNOSTIC CODE INDEX»(ref-465964-S11666185382012042300000) and perform the appropriate diagnostic procedure based on vehicle HVAC system. No Go To 3 .
  3. MODE SWITCH AND DOOR ACTUATOR CIRCUIT TEST NOTE: If at anytime a DTC becomes active during this test, proceed to the conclusion question. If multiple DTCs are active, diagnose those that relate to a short circuit first. Start the engine and turn the Blower control to the low speed position. Set the Blend control (single-zone) or Driver and Passenger Blend control (dual-zone) to the full cold position. Monitor the scan tool for active HVAC DTCs while performing the following test steps. If equipped, press the A/C mode switch on, wait 30 seconds, and then press it off. On Dual-Zone systems, press the Recirculation mode switch on, wait 30 seconds, and then press it off. If equipped, press the EBL mode switch on, wait 30 seconds, and then press it off. Move the Blend control (single-zone) or Driver Blend control (dual-zone) from full cold to full hot, wait 30 seconds, and then move it back to full cold. If equipped, move the Passenger Blend control from full cold to full hot, wait 30 seconds, and then moved it back to full cold. Turn the Mode select control to the defrost position, wait 30 seconds, and then turn it to the panel position (dual-zone) or panel / recirculation position (single-zone). Wait 30 seconds before proceeding. Does the scan tool display any active DTCs? Yes See «DIAGNOSTIC CODE INDEX»(ref-465964-S11666185382012042300000) and perform the appropriate diagnostic procedure based on vehicle HVAC system. No Go To 4 .
  4. ACTUATOR CALIBRATION TEST Ignition on, engine not running. Using the scan tool, select Actuator Calibration Test. When the test is complete, read HVAC DTCs. Does the scan tool display any DTCs? Yes See «DIAGNOSTIC CODE INDEX»(ref-465964-S11666185382012042300000) and perform the appropriate diagnostic procedure based on vehicle HVAC system. No Test 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 «DIAGNOSTIC CODE INDEX»(ref-465214) .
  3. Depending on the vehicle configuration, with the scan tool, read Totally Integrated Power Module (TIPM) DTCs. If TIPM DTCs are present, and perform the appropriate diagnostic procedure(s) before proceeding. Refer to «DIAGNOSIS AND TESTING»(ref-465991-S16226542852012042300000) .
  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-465964-S02140942132012042300000) .

No

  1. Refer to «DIAGNOSIS AND TESTING»(ref-465964-S19837166322012042300000) and perform the appropriate diagnostic procedure.

ON-BOARD DIAGNOSTICS

CAUTIONDo not exchange A/C Heater Controls from vehicle to vehicle. Software versions differ between models and model years. Installing an A/C Heater Control with software that is incompatible for a given vehicle can result in either improper or failed HVAC system operation.

Note. Always inspect the IOD fuse prior to diagnosing any heating-A/C system concerns. Make sure the fuse is functional and fully seated into the terminals of the totally integrated power module (TIPM) located in the engine compartment.

The A/C-heater control communicates on the controller area network (CAN) B bus and is fully addressable with a scan tool.

The A/C-heater controls primary means of fault detection is through active and stored diagnostic trouble codes (DTCs). Active DTCs are those which currently exist in the system. The condition causing the fault must be repaired in order to clear this type of DTC. Stored DTCs are those which occurred in the system since the A/C-heater control received the last clear diagnostic info message. All DTCs must be read with a scan tool (refer to DIAGNOSTIC CODE INDEX for the diagnostic test procedures).

The A/C-heater controls secondary means of fault detection is through system tests. These tests include the HVAC System Test, the A/C Cooldown Test, the Actuator Calibration Function, and for MTC Systems, the Actuator DTC Detection Test. Refer to SYSTEM TESTS for a detailed description of each test.

The HVAC System Test, found SYSTEM TESTS , provides a starting point in the diagnostic process by identifying the appropriate system test to perform when diagnosing a given condition or DTC. It also provides a means for testing the entire HVAC system by utilizing the A/C-heater controls On-Board System Tests. The On-Board System Tests can also assist in diagnosing stored DTCs.

A/C COOLDOWN TEST

The A/C Cooldown Test

  1. is actuated with a scan tool.
  2. tests A/C system performance based on evaporator temperature sensor input.
  3. will fail if evaporator starting temperature is below 18° C (65° F) when initiating the test.
  4. will pass if the evaporator temperature drops 11° C (20° F).
  5. indicates test outcome by displaying one or more test status messages on the scan tool. These messages will clear after paging back out of this test function. Therefore, is it important to note all of the messages before doing so.
  6. will cause the A/C status indicator to flash while the test is running.

ACTUATOR DTC DETECTION TEST

The Actuator DTC Detection Test

  1. is actuated with a scan tool.
  2. supplements the continuous diagnostics on the actuator drive system.
  3. monitors for shorted actuator circuits allowing service to easily diagnose and troubleshoot up to three simultaneous shorts. Shorted actuator circuit faults (XXX Control Circuit High or XXX Control Circuit Low) will only display after running the Actuator DTC Detection Test.

After repairing each DTC, cycle the ignition switch, and then rerun the Actuator DTC Detection test to ensure that no new DTCs exist. If multiple DTCs are present, beginning with the common circuits, diagnose and repair all short high faults and then short low faults. When the test returns passed, proceed with troubleshooting by clearing faults and running the Actuator Calibration function as a final check of proper system operation.

More articles — Heating & Air Conditioning - Electrical Diagnostics