Diagnostic Test

2014 Jeep Grand Cherokee Laredo, AWDSECTION Diagnostic Test
WARNING: This page is about a different variant/trim than selected.

PROGRAMMING MILEAGE INTO THE PCM 

  1. Ignition on, engine not running.
  2. With the scan tool, erase DTCs.
  3. Using a scan tool, program the mileage into the PCM.
  4. Start the engine.
  5. Allow the engine to reach normal operating temperature.
  6. With the scan tool, select View DTCs.

    Does the DTC reset?

    Yes 

    No 

    • The mileage has been successfully programmed into the PCM. Test is complete.
    • Perform the POWERTRAIN VERIFICATION TEST. Refer to POWERTRAIN VERIFICATION TEST .
RENDER: 1.0x

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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.