B10C1–A/C SELECT SWITCH STUCK (CCN)
For a complete wiring diagram Refer to Section 8W.
Possible Causes
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DTC B1001 OR B1002 ACTIVE IN THE CCN
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OBJECT HOLDING A/C MODE SWITCH IN A PUSHED POSITION
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SUBSTANCE CAUSING A/C MODE SWITCH TO GET STUCK IN A PUSHED POSITION
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A/C HEATER CONTROL
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Diagnostic Test
1.
CHECK FOR ACTIVE DTC B1001 OR B1002 IN THE CCN
Turn 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
2.
INSPECT THE A/C HEATER CONTROL FOR DAMAGE
Turn the ignition off.
Inspect the A/C Heater Control for damage.
Is the A/C Heater Control damaged?
Yes
No
3.
INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE A/C MODE SWITCH TO STAY OR STICK IN A PUSHED POSITION
Inspect 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
No
4.
CHECK THE A/C MODE SWITCH & STATUS INDICATOR FUNCTION
Start 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
No
5.
VERIFY THAT DTC B10C1–A/C SELECT SWITCH STUCK IS STILL ACTIVE
Turn 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
No