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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Heated Seat Module (HSM) - Electrical Diagnostics) >> DTC Troubleshooting >> B221A-00-(HSM) Heated Seat Module Internal >> Diagnostic Test

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.

VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE 

  1. Turn the ignition on.
  2. Using a scan tool, record and erase DTCs.
  3. Turn the ignition off.
  4. Start the engine and let it run.
  5. Operate each of the heated systems one at a time, as equipped.
  6. Using a scan tool, read DTCs.

    Is the DTC active?

    Yes 

    • Replace the Comfort Seat and Wheel Module (CSWM) in accordance with the Service Information.
    • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

    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 .