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Home >> Fiat >> 2015 >> 500L Pop, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> (Body Control Module (BCM) - Electrical Diagnostics - 500L) >> Diagnosis And Testing >> B12A0-23-Heater Rear Window Switch - Signal Stuck Low >> Diagnostic Test

Diagnostic Test

CHECK FOR AN ACTIVE DTC 

  1. Turn the ignition on.
  2. Operate the Rear Window Defogger Switch several times.
  3. With the scan tool, read DTCs.

    Does the scan tool display this DTC as active?

    Yes 

    • Replace the Rear Window Defogger Switch in accordance with the Service Information.
    • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

    No 

    • Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
    • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
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