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Diagnostic Test

  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10 seconds.
    5. Turn the ignition on.
    6. Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
    7. With the scan tool, read DTCs.

      Did the DTC return?

      Yes 

      • Go To Next Step.

      No 

  2. CHECK FOR APPLICABLE SOFTWARE UPDATES AND SERVICE BULLETINS 
    1. With a scan tool, check all electronic control modules for software updates that are related to the customer concern.
    2. Check for service bulletins that are related to the customer concern.

      Were any software updates or service bulletins applicable to the customer concern?

      Yes 

      • Perform the service procedure as necessary.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No 

      • Go To Next Step.
  3. CHECK FOR RELATED DTCS SET IN OTHER MODULES 
    1. Refer to the saved DTC information recorded on the repair order.

      Were any related ECU software or configuration DTCs set in other modules?

      Yes 

      • Perform the appropriate diagnostic procedures in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No