Heating & Air Conditioning (Atc) - Electrical Diagnostics: Diagnosis Dodge Journey I

DIAGNOSTIC CODE INDEX

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 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Recirculation switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Recirculation 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Defrost switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Defrost switch being held in or stuck in an 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the 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 Rear Defrost switch being held in or stuck in an 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

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 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 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Blower Up switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Blower Up 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Blower Down switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Blower Down 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

Scheme 1

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Auto mode switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Auto mode switch being held in or stuck in an 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

Scheme 2

1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Are there any Door Control Circuit Open DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE REAR MODE DOOR Remove the Rear Mode Door Actuator and check the Rear Mode Door for binding and full travel. Were there any problems found? Yes Repair or replace the Rear Mode Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE REAR MODE DOOR ACTUATOR AND A/C HEATER CONTROL Replace the Rear Mode Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.

1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is there any Door Control Circuit Open or Performance DTCs also present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 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. Were there any problems found? Yes Repair or replace the Rear Mode Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE REAR MODE DOOR ACTUATOR AND A/C HEATER CONTROL Replace the Rear Mode Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.

Scheme 3

1. CHECK FOR RELATED DTCS Ignition on, engine not running. Using the scan tool, read HVAC DTCs. Are there any Door Control Performance DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 Performance DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE MODE DOOR ACTUATOR Replace the Mode Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE REAR BLEND DOOR Remove the Rear Blend Door Actuator and check the Rear Blend Door for binding and full travel. Were there any problems found? Yes Repair or replace the Rear Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE REAR BLEND DOOR ACTUATOR AND A/C HEATER CONTROL Replace the Rear Blend Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.

1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is there any Door Control Circuit DTCs also present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 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. Were there any problems found? Yes Repair or replace the Rear Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE REAR BLEND DOOR ACTUATOR AND FRONT A/C HEATER MODULE Replace the Rear Blend Door Actuator in accordance with the Service Information. With the scan tool, erase HVAC DTCs and perform the HVAC Actuator Calibration Test. Did this DTC reset? Yes Replace and program the Front A/C Heater Module in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE RECIRCULATION DOOR Remove the Recirculation Door Actuator and check the Recirculation Door for binding and full travel. Were there any problems found? Yes Repair or replace the Recirculation Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE RECIRCULATION DOOR Remove the Recirculation Door Actuator and check the Recirculation Door stops, linkage (stripped or cracked) and door. Were there any problems found? Yes Repair or replace the Recirculation Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE RECIRCULATION DOOR ACTUATOR Replace the Recirculation Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE BLEND DOOR Remove the Blend Door Actuator and check the Blend Door for binding and full travel. Were there any problems found? Yes Repair or replace the Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE BLEND DOOR ACTUATOR Replace the Blend Door Actuator in accordance with the Service Information. 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.
6. CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. With the scan tool, check the Environmental Data to help identify the conditions in which the DTC was set. Using the «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE BLEND DOOR Remove the Blend Door Actuator and check the Blend Door stops, linkage (stripped or cracked) and door. Were there any problems found? Yes Repair or replace the Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE BLEND DOOR ACTUATOR Replace the Blend Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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 DTCs present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE RIGHT BLEND DOOR Remove the Right Blend Door Actuator and check the Right Blend Door for binding and full travel. Were there any problems found? Yes Repair or replace the Right Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE RIGHT BLEND DOOR ACTUATOR AND A/C HEATER CONTROL Replace the Right Blend Door Actuator in accordance with the Service Information. 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.

1. CHECK FOR RELATED DTCS Ignition on, engine not running. With the scan tool, read HVAC DTCs. Is there any Door Control Circuit DTCs also present? Yes See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure. No Go to step 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 step 4 No Go to step 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 step 4 No Go to step 6
4. CHECK THE RIGHT BLEND DOOR Remove the Right Blend Door Actuator and check the Right Blend Door stops, linkage (stripped or cracked) and door. Were there any problems found? Yes Repair or replace the Right Blend Door as necessary in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 5
5. CHECK THE RIGHT BLEND DOOR ACTUATOR AND A/C HEATER CONTROL Replace the Right Blend Door Actuator in accordance with the Service Information. With the scan tool, erase HVAC DTCs and perform the 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .
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 «SYSTEM WIRING DIAGRAMS»(ref-313026) 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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete.

1. CONDITIONS FOR A/C COOL DOWN TEST The following condition must be met before running the A/C Cool Down test. No Powertrain Control Module (PCM) 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.

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the Rear A/C Heater Control for an object or debris holding the Rear 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 Rear Power On/Off Control Switch being held in or stuck On? Yes Clean or repair the Rear A/C Heater Control as necessary. If you are unable to clean the switch to where the switch can work properly, replace the Rear A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the Rear A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear Power Lockout Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Rear Power Lockout 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Sync Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Sync 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

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 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Down Mode Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Down Mode 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear 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 Rear Up Mode 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear Down Mode Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Rear Down Mode 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear Blower Up Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Rear Blower Up 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

1. INSPECT FOR OBJECT HOLDING SWITCH IN AN ON POSITION Inspect the A/C Heater Control for an object or debris holding the Rear Blower Down Switch in an On position. NOTE: Using the scan tool you can read the On/Off status of the control switch. Is the Rear Blower Down 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Go to step 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 four minutes. 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 the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . No Test complete. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

Scheme 4

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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

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. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . HVAC has wrong vehicle configuration but TIPM has correct configuration. Replace the A/C Heater Control in accordance with the Service Information. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) . 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. Perform the HVAC VERIFICATION TEST. See «DTC-Based Diagnostics/HVAC - Standard Procedure»(ref-353631-S26939983102010011200000) .

Scheme 5

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 HVAC DTCs. Is this DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-353626) and perform the «U0010-CAN INTERIOR BUS»(ref-353631-S26527380982010011200000) diagnostic procedure. No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-353629-S29205595342010011200000) and perform the Stored Lost Communication DTCs diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and 12-volt battery voltage is between 10 and 16 Volts before proceeding. Using the scan tool, read active HVAC DTCs. Is this DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-353626) and perform the diagnostic procedure for «U0141-LOST COMMUNICATION WITH IPM (FCM/TIPM)»(ref-353631-S38321340562010011200000) . No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-353629-S29205595342010011200000) and perform the Stored Lost Communication DTC diagnostic procedure.

1. VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE: Make sure the IOD fuse is installed and 12-volt battery voltage is between 10 and 16 Volts before proceeding. Using the scan tool, read active HVAC DTCs. Is this DTC active? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-353626) and perform the diagnostic procedure for «U0155-LOST COMMUNICATION WITH CLUSTER/CCN»(ref-353631-S20190949672010011200000) . No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-353629-S29205595342010011200000) and perform the Stored Lost Communication DTC diagnostic procedure.

1. HVAC SYSTEM TEST NOTE: Diagnose and repair all active DTCs before diagnosing and repairing stored DTCs. If active DTCs are present, see 28 - DTC-Based Diagnostics 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 «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-353629-S29205595342010011200000) and perform the No Response from HVAC diagnostic procedure. Blower Motor Inoperative Refer to «Heating and Air Conditioning/Distribution/MOTOR, Blower - Diagnosis and Testing»(ref-353571-S06285570852010011200000) for Blower Motor diagnostic procedures. Actuator Calibration Test Go to step 4 A/C System Performance (Cool Down) Test Go to step 2
2. A/C COOL DOWN TEST The following are prerequisites of the A/C Cool Down 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 «Heating and Air Conditioning - Diagnosis and Testing»(ref-353571-S02047399742010011200000) . 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 Cool Down test will cause the A/C status indicator to flash. One or more status messages will display on the scan tool after running the Cool Down 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 Cool Down test. Allow the test to run to completion. Does the scan tool display a status message that indicates a fault has occurred? Yes See 28 - DTC-Based Diagnostics/HVAC and perform the appropriate diagnostic procedure based on vehicle HVAC system. No Go to step 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.
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 28 - DTC-Based Diagnostics/HVAC and perform the appropriate diagnostic procedure based on vehicle HVAC system. No Test Complete.

Diagnostic Procedure

1. See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate 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. See «DTC-Based Diagnostics/HVAC - Diagnosis and Testing»(ref-353631-S31188239182010011200000) and perform the appropriate diagnostic procedure.

No

1. Repair is complete.