SYMPTOM RELATED DIAGNOSTICS

Switch Circuit Failure

Test 1

Checking switch operation

1.Using a diagnostic tool (Pro-Link or PC), check the status of the switch as you turn the switch ON and OFF with the ignition key to the ON position.

If the switch status displayed on the diagnostic tool toggles properly, but there was a complaint that the switch was not working properly, check for good connections at the switch. In the case of the clutch switch, check for proper switch adjustment. Retest to be sure the problem has been corrected.

If the switch status displayed on the diagnostic tool does not toggle properly, always remaining ON or OFF, proceed to Test 2.

Test 2

Checking module connector

1.Turn the ignition key to the OFF position.

2.Disconnect the appropriate V-MAC II connector.

3.Check both sides of the V-MAC II connector for problems such as bent, loose, missing or corroded pins.

If the pins are in good condition, proceed to Test 4.

If the pins are damaged, replace the connector pins or the V-MAC II module. Retest to be sure the problem has been corrected.