No PCM Messages Received

2002 Jeep Liberty Limited Edition 2WD V6-3.7L VIN KSECTION No PCM Messages Received

Tests 1 - 2:





SYMPTOM
NO PCM MESSAGES RECEIVED

WHEN MONITORED
When the ignition is turned ON.

SET CONDITION
No PCI Bus message received for 5 seconds after the ignition is turned on. No PCI Bus message is indicated by dashes in the VF display. When valid data is received, the data Will replace the dashes.

POSSIBLE CAUSES
- DTC present
- No response - PCI bus - PCM
- Compass mini-trip computer
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:

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