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 MANUALSJEEP2009GRAND CHEROKEE SRT-8REPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESHEATED SEAT MODULE (HSM) - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOWDIAGNOSTIC TEST

2009 Jeep Grand Cherokee SRT-8

Diagnostic Test

2009 Jeep Grand Cherokee SRT-8SECTION Diagnostic Test

VERIFY THAT DTC B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE
1. With the scan tool, record and erase DTC's
2. Operate the Heated Seat Switch in both positions several times.
3. With the scan tool, read DTC's.
  Does the DTC B1096-FRONT RIGHT SEAT HEATER CONTROL CIRCUIT LOW reset?
  
  Yes
  - Go to step 2
  No
  - The conditions that caused this code to set are not present at this time. Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
DISCONNECT RIGHT SEAT INLINE CONNECTOR AND READ DTC'S
1. Disconnect the right seat inline connector.
  NOTE: Check connectors - Clean and repair as necessary.
2. With the scan tool, erase HSM DTC's
3. Operate the Heated Seat Switch in both positions several times.
4. With the scan tool, read DTC's.
  Does the scan tool display the same DTC?
  
  Yes
  - Go to step 6
  No
  - Go to step 3
CHECK THE (P188) RIGHT SEAT HEATER B(+) DRIVER FOR A SHORT TO GROUND
1. Measure between the (P188) Right Seat Heater B(+) Driver circuit at the seat inline connector (seat side) and the seat frame for a short to ground.
  Is the resistance below 1k ohms?
  
  Yes
  - Repair/replace the pigtail/heating element as necessary for a short to ground condition.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Go to step 4
CHECK THE RIGHT CUSHION PAD HEATER RESISTANCE

Fig 1: Checking Right Cushion Pad Heater Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the Right Cushion Pad Heater 2 - way connector.
2. Check the resistance of the cushion heater element by measuring between the (P188) Right Seat Heater B(+) Driver and the Ground circuit at the right cushion pad connector (component side).
  Was the resistance below 3.5 ohms?
  
  Yes
  - Replace the heater element as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Go to step 5
CHECK THE RIGHT SEAT BACK HEATER RESISTANCE

Fig 2: Checking Right Seat Back Heater Resistance
Courtesy of CHRYSLER LLC
1. Disconnect the Right Seat Back Heater 2 - way connector.
  NOTE: Check connectors - Clean and repair as necessary.
2. Check the resistance of the seat back heater element by measuring between the (P188) Right Seat Heater B(+) Driver and the Ground circuit at the right seat back connector (component side).
  Is the resistance below 4.0 ohms?
  
  Yes
  - Replace the seat back heater element as necessary.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors for an intermittent short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
Check the (P188) Right Seat Heater B(+) Driver circuit for a short to ground

Fig 3: Checking Left Seat Heater B(+) Driver Circuit For A Short To Ground
Courtesy of CHRYSLER LLC
1. Disconnect the Heated Seat Module connector.
  NOTE: Check connectors - Clean and repair as necessary.
2. Measure the (P188) Right Seat Heater B(+) Driver circuit to ground at the HSM connector. Cavity 4 for LHD and 3 RHD.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Repair the (P188) Right Seat Heater B(+) Driver circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .
  No
  - Replace the Heated Seat Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure .

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.