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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 156 ((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 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, record and erase DTCs.
    3. Turn the ignition off.
    4. Start the engine.
    5. Operate each of the heated and vented (if equipped) systems one at a time.
    6. With the scan tool, read DTCs.

      Does the DTC return?

      Yes 

      No 

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  2. CHECK THE WIRING AND CONNECTORS 
    1. The conditions necessary to set the DTC are not present at this time.
    2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorted and open circuits.
    3. Check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
    4. With the scan tool, check for any Environmental Data to help identify the conditions in which the DTC was set.
    5. Check for any Service Bulletins that may apply.

      Were there any problems found?

      Yes 

      No 

      • Test complete.