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Diagnostic Test

WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. TEST FOR INTERMITTENT CONDITION 
    NOTE:

    Make sure the battery is fully charged and the charging system is operating properly before proceeding.

    1. Turn the ignition on.
    2. Using a scan tool, record and erase Diagnostic Trouble Codes (DTCs).
    3. Turn the ignition off.
    4. Start the engine and let it run.
    5. Turn the Heated Seat on and operate in all modes.
    6. Using a scan tool, read DTCs.

      Is the DTC active?

      Yes 

      • Go To  2

      No 

      • The conditions that caused this code to set are not present at this time. Verify seat harness is routed correctly to the HSM. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Look for chafed, pierced, pinched, or partially broken wires and broken, bent, pushed out, spread, corroded, or contaminated terminals. Attempt to reproduce condition by adjusting the seat.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  2. CHECK (P187) LEFT FRONT SEAT HEATER CONTROL CIRCUIT TO SEAT BACK HEATER FOR A SHORT TO GROUND 
    1. Turn the ignition off.
    2. Disconnect the Left Seat Back Heater harness connector.
      NOTE:

      Check connectors. Clean and repair as necessary.

    3. Measure the resistance between ground and the (P187) Left Front Seat Heater Control circuit at the Left Seat Back Heater harness connector (connector side).

      Is the resistance below 10K Ohms?

      Yes 

      • Repair or replace the pigtail harness for a short to ground or replace the shorted Seat Back Heater Element in accordance with the Service Information. Refer to COVER, SEAT BACK, REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  3
  3. CHECK (P187) LEFT FRONT SEAT HEATER CONTROL CIRCUIT TO SEAT CUSHION HEATER FOR A SHORT TO GROUND 
    Fig 1: Checking Seat Heater Control Circuit To Seat Cushion Heater For Short To Ground
    GC0149620Courtesy of CHRYSLER GROUP, LLC
    1. Disconnect the Left Seat Cushion Heater harness connector.
      NOTE:

      Check connectors. Clean and repair as necessary.

    2. Measure the resistance between ground and the (P187) Left Front Seat Heater Control circuit at the Left Seat Cushion Heater harness connector (connector side).

      Is the resistance below 10K Ohms?

      Yes 

      • Repair the short to ground in the harness or replace the shorted Seat Cushion Heater Element in accordance with the Service Information. Refer to PAD, HEATER, REMOVAL .
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Go To  4
  4. CHECK THE (P187) LEFT FRONT SEAT HEATER CONTROL CIRCUIT TO HSM FOR A SHORT TO GROUND 
    Fig 2: Checking Seat Heater Control Circuit To Seat Cushion Heater For Short To Ground
    GC0149620Courtesy of CHRYSLER GROUP, LLC
    1. Measure the resistance between ground and the (P187) Left Front Seat Heater Control circuit at the Left Seat Cushion Heater harness connector (harness side).

      Is the resistance below 10K Ohms?

      Yes 

      • Repair the (P187) Left Front Seat Heater Control circuit for a short to ground between the Heated Seat Module and the Left Seat Cushion Heater harness connector.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

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