Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009PATRIOT LIMITED, EDG, AUTOMATIC CVTREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTANTI-THEFT SYSTEMS(CABIN COMPARTMENT NODE (CCN) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGB10C1-A/C SELECT SWITCH STUCKDIAGNOSTIC TEST

2009 Jeep Patriot Limited, EDG, Automatic CVT

Diagnostic Test

2009 Jeep Patriot Limited, EDG, Automatic CVTSECTION Diagnostic Test

CHECK FOR ACTIVE DIAGNOSTIC TROUBLE CODE (DTC) B1001 OR B1002 IN THE CCN
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display active: B1001 or B1002?
  
  Yes
  - Diagnose and repair the DTC.
  No
  - Go to step 2
INSPECT THE A/C HEATER CONTROL FOR DAMAGE
1. Turn the ignition off.
2. 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. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
INSPECT FOR OBJECT OR SUBSTANCE CAUSING THE A/C MODE SWITCH TO STAY OR STICK IN A PUSHED POSITION
1. 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
  - Repair as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 4
CHECK THE A/C MODE SWITCH AND STATUS INDICATOR FUNCTION
1. Start the engine.
2. Turn the blower control on.
3. 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 step 5
  No
  - Replace the A/C Heater Control in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
VERIFY THAT DTC B10C1-A/C SELECT SWITCH STUCK IS STILL ACTIVE
1. Turn the ignition on.
2. With the scan tool, erase DTCs.
3. Turn the ignition off, wait 10 seconds, and turn the ignition on.
4. With the scan tool, read 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. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.