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 MANUALSJEEP2011COMPASS LATITUDE, 2.4 B, AWD, AUTOMATIC CVT, CVT2REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTHORNSCABIN COMPARTMENT NODE (CCN) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOWDIAGNOSTIC TEST

2011 Jeep Compass Latitude, 2.4 B, AWD, Automatic CVT, CVT2

Diagnostic Test

2011 Jeep Compass Latitude, 2.4 B, AWD, Automatic CVT, CVT2SECTION Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, record and erase Diagnostic Trouble Codes (DTCs).
3. Operate the Heated Seat Switch in both positions several times.
4. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2.
  No
  - Test complete, the condition or conditions that originally set this DTC are not present at this time. 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. Attempt to reproduce condition by adjusting the seat.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
CHECK (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT IN BODY HARNESS FOR A SHORT TO GROUND

Fig 1: Checking Left Seat Heater B(+) Driver Circuit In Body Harness For A Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Left Seat Cushion Heater harness connector.
  NOTE:
  Check connectors. Clean and repair as necessary.
3. Turn the ignition on.
4. With the scan tool, erase DTCs.
5. Operate the Heated Seat Switch in both positions several times.
6. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 3.
  No
  - Go To 4.
CHECK (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 2: Measuring Resistance Of Left Seat Heater B (+) Driver Circuit Between Ground & HSM Connector
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the HSM harness connector.
  NOTE:
  Check connectors. Clean and repair as necessary.
3. Measure the resistance of the (P187) Left Seat Heater B(+) Driver circuit between ground and the HSM harness connector.
  Is the resistance below 10K Ohms?
  
  Yes
  - Repair the (P187) Left Seat Heater B(+) Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Go To 4.
CHECK LEFT SEAT CUSHION HEATER FOR A SHORT TO GROUND

Fig 3: Checking Left Seat Cushion Heater For A Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Reconnect the Left Seat Cushion Heater harness connector.
3. Disconnect the Left Seat Back Heater harness connector.
  NOTE:
  Check connectors. Clean and repair as necessary.
4. Turn the ignition on.
5. With the scan tool, erase DTCs.
6. Operate the Heated Seat Switch in both positions several times.
7. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Replace the shorted Left Seat Cushion Heater Element in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Replace the Left Seat Back Heater Element in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .

RENDER: 1.0x

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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.