Coolant Temperature Indicator/Warning Light TroubleshootingBefore testing, check the No. 8 (15A) fuse in the under-hood fuse/relay box and No. 3 (7.5A) fuse in the under-dash fuse/relay box.
|1.||Start the engine and check the Malfunction Indicator Lamp (MIL).|
Does the MIL come on?
YES - Troubleshoot the DTC, and recheck.
NO - Go to 2.
|2.||Disconnect the ECM connector E (40P) or ECM/PCM connector E (31P).|
|3.||Check for continuity between each terminal of the ECM/PCM connector E and gauge assembly connector C (40P) No. 16 terminal.|
With throttle actuator control
Without throttle actuator control
Is there continuity?
YES - Replace the gauge assembly and recheck.n
NO - Check the open in the wire and the connection condition of the terminal.n