Diagnostic Test

2009 Jeep Commander Limited, 5.7 T, 4WDSECTION Diagnostic Test
  1. WIRELESS IGNITION NODE 
    NOTE: Before continuing review and check the following conditions.
    • Review the repair history of the vehicle. Make sure the vehicle has the correct PCM and WIN installed. Check the part numbers.
    • Using a scan tool, make sure the PCM and WIN have been programmed correctly. Compare the PCM VIN to the WIN VIN and ensure the two VINS match.
    1. Turn the ignition on.
    2. With the scan tool, clear DTCs.
    3. Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle.
    4. Using the scan tool, read DTCs.

      Does the DTC reset?

      Yes 

      No 

      • The DTC is not active at this time. Test complete.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.