Pinpoint Tests

Troubleshooting Chart, Temperature Gauge Inaccurate.:

C1-Verify power at load side of fuse panel.

Troubleshooting Chart, Temperature Gauge Inaccurate.:

C2-Verify power at instrument panel.
C3-Measure ECT sensor circuit 640 continuity.
C4-Check gauge cold calibration.
C5-Check gauge hot calibration.
C6-Check ground connection.
C7-Check flex circuit continuity.
C8-Check for corrosion/poor connections.