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Diagnostic trouble code: P0118“Over temperature indicated by engine coolant Item No. Operation procedure Inspection results Follow-up procedure 1 Connect the diagnostic tester and
Proceed to next step. Yes Proceed to Step 6 2 Observe the “coolant temperature” in at that time, there ℃ may be some open malfunction occurs No Proceed to next step. Yes Proceed to next step. 3 Disconnect the connector of the coolant No Replace the sensor. Yes Proceed to Step 6 4 Disconnect the connector of the coolant No Proceed to next step. Yes Repair or replace the wiring harness. 5 Check whether the circuits between 39# No Proceed to next step. Yes Refer to diagnosis help. 6 Start up the engine, run at idle speed. the value of “Coolant temperature” on the diagnostic tester to No Replace the sensor. |