Checking the Control Module's Sensor Input

Checking The Control Module's Sensor Input







- Turn the ignition switch to the ON position.

Reading: Coolant Temperature







The reading should be -40 °C

Checking the wiring harness
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - II

YES - Continue with the Checking the Control Module's Sensor Input.

















- Connect a jumper lead between pins 1 and 2 of the female connector.

Reading: Coolant Temperature







The reading should be 160 °C

Checking the wiring harness
Jiggle the leads and in-line connectors at several places and in different directions to reveal intermittent breaks and short circuits in the wiring harness. Observe the multimeter, test lamp or diagnostic tool while doing this.

Is the function correct?

NO - Rectifying the Lead - II

YES - Changing Components