Diagnostic Test

VERIFY THAT DTC B1092-FRONT LEFT SEAT HEATER CONTROL CIRCUIT LOW IS ACTIVE
1. With the scan tool, record and erase CCN DTC's
2. Operate the Heated Seat Switch in both positions several times.
3. With the scan tool, read DTC's.
  Does the DTC B1092-FRONT LEFT 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 BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
DISCONNECT LEFT CUSHION HEATER 2-WAY CONNECTOR AND READ DTC'S

Fig 1: LEFT SEAT CUSHION HEATER 2-WAY
Courtesy of CHRYSLER LLC
1. Disconnect the Left Seat Cushion Heater 2- way connector.
  NOTE: Check connectors - Clean and repair as necessary.
2. With the scan tool, erase 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 5
  No
  - Go to step 3
CHECK THE (P187) LEFT SEAT HEATER B(+) DRIVER FOR A SHORT TO GROUND AT THE SEAT

Fig 2: Checking Left Seat Heater B(+) Driver For A Short To Ground At Seat
Courtesy of CHRYSLER LLC
1. Measure between the (P187) Left Seat Heater B(+) Driver circuit at the Left Seat Heater connector (component side) and the seat frame for a short to ground.
  Is the resistance below 1000 ohms?
  
  No
  - Go to step 4
  Yes
  - Repair/replace the pigtail/heating element as necessary for a short to ground condition.
  - Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK THE LEFT HEATER ELEMENT SEAT CUSHION AND SEAT BACK RESISTANCE

Fig 3: Checking Left Heater Element Seat Cushion And Seat Back Resistance
Courtesy of CHRYSLER LLC
1. Gain access to the seat cushion and seat back heater connectors.
2. Check the resistance of each of the heater elements by measuring between the (P187) Left Seat Heater B(+) Driver and the Ground circuit at the seat cushion and seat back heater connectors.
3. For the seat cushion element the resistance value is 3 to 5.5 ohms.
4. For the seat back element the resistance value is 4 to 6 ohms.
  Is the resistance correct for each heater element?
  
  Yes
  - Using the SYSTEM WIRING DIAGRAMS as a guide, inspect the wiring and connectors for an intermittent short to ground.
  No
  - Replace the heater element as necessary.
  - Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
CHECK THE (P187) LEFT SEAT HEATER B(+) DRIVER CIRCUIT FOR A SHORT TO GROUND

Fig 4: Checking Left Seat Heater B(+) Driver Circuit For A Short To Ground
Courtesy of CHRYSLER LLC
1. Ensure the Left Seat Cushion Heater 2- way connector is still disconnected.
2. Disconnect the Heated Seat Module connector.
  NOTE: Check connectors - Clean and repair as necessary.
3. Measure the (P187) Left Seat Heater B(+) Driver circuit cavity D for (LHD) or K for (RHD) at the HSM connector to ground.
  Is the resistance below 5.0 ohms?
  
  Yes
  - Repair the (P187) Left Seat Heater B(+) Driver circuit for a short to ground.
  - Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Heated Seat Module in accordance with the Service Information.
  - Perform BODY VERIFICATION TEST. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .