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Engine coolant temprature was replaced. ok.
you should check following issues: P0118: INSPECT PCM CONNECTOR FOR POOR CONNECTION. procedure:
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/pulled-out pins, corrosion).
• Is there any malfunction?
IF yes repair or replace the termimal.
IF no go to next step: INSPECT ECT SENSOR CIRCUIT FOR OPEN CIRCUIT
Procedure:
• turn the ignition switch off.
• Inspect for continuity between the following terminals:
― ECT sensor terminal A (wiring harness-side) and PCM terminal 2J (wiring harness-side)
― ECT sensor terminal B (wiring harness-side) and PCM terminal 2AX (wiring harness-side)
• Is there continuity?
If no: Repair or replace the wiring harness for a possible open circuit, then go to the next step.
If yes: next step. VERIFY TROUBLESHOOTING OF DTC P0118 COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Start the engine.
• Is the same DTC present?
If yes: Replace the PCM.
Last edited by raothuong; May 13, 2024 at 10:48 PM.