Operation CHARM: Car repair manuals for everyone.

Engine Coolant Temperature Gauge Inaccurate or Inoperative

TEST DESCRIPTION

Steps 1-7:




Steps 8-12:




The numbers below refer to the step numbers on the diagnostic table.
3. This step tests for a short to ground in the signal circuit.
4. This step tests for an open, a high resistance, or a short to voltage in the signal circuit.