B10C1–A/C SELECT SWITCH STUCK (CCN)For a complete wiring diagram Refer to Section 8W.- When Monitored:With the ignition on.
- Set Condition:If the Instrument Cluster (CCN) detects that the A/C mode switch stays in a pushed position for more than 5 seconds.
Possible Causes
DTC B1001 OR B1002 ACTIVE IN THE CCN
OBJECT HOLDING A/C MODE SWITCH IN A PUSHED POSITION
SUBSTANCE CAUSING A/C MODE SWITCH TO GET STUCK IN A PUSHED POSITION
A/C HEATER CONTROL
Diagnostic Test1. CHECK FOR ACTIVE DTC B1001 OR B1002 IN THE CCNTurn the ignition on.With the scan tool, read CCN DTCs.Does the scan tool display active: B1001 or B1002?Yes- Diagnose and repair the DTC. Refer to the Table of Contents in this Section.
No- Go To 2
2. INSPECT THE A/C HEATER CONTROL FOR DAMAGETurn the ignition off.Inspect the A/C Heater Control for damage.Is the A/C Heater Control damaged?Yes- Replace the A/C Heater Control in accordance with the service information.
- Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No- Go To 3
3. INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE A/C MODE SWITCH TO STAY OR STICK IN A PUSHED POSITIONInspect the A/C Heater Control for anything that would cause the A/C mode switch to stay or stick in a pushed position.Is anything present that would cause the A/C mode switch to stay or stick in a pushed position?Yes- Repair as necessary.
- Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No- Go To 4
4. CHECK THE A/C MODE SWITCH & STATUS INDICATOR FUNCTIONStart the engine.Turn the blower control on.Press the A/C mode switch on and off several times while observing the A/C status indicator.Does the A/C status indicator turn on and off?Yes - Go To 5
No - Replace the A/C Heater Control in accordance with the service information.
- Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
5. VERIFY THAT DTC B10C1–A/C SELECT SWITCH STUCK IS STILL ACTIVETurn the ignition on.With the scan tool, erase CCN DTCs.Turn the ignition off, wait 10 seconds, and turn the ignition on.With the scan tool, read CCN DTCs.Does the scan tool display active: B10C1–A/C SELECT SWITCH STUCK?Yes- Replace the A/C Heater Control in accordance with the service information.
- Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
No- Perform the BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE).