California

Gear Selector Position Switch (Inhibitor Switch) Circuit:

Gear Selector Position Switch (Inhibitor Switch) location:

Harness Test

Measure the supply voltage of the inhibitor switch
1. Disconnect the ECU and inhibitor switch connectors.
2. Check the voltage at inhibitor switch connector terminal 11, with the ignition switch in both the "On" and "Start" positions.
Voltage:
System Voltage.


Measure the input voltage of the ECU
1. Disconnect the inhibitor switch connector.
2. Check the voltage at inhibitor switch connector terminal 11, with the ignition switch in the "On" position.
Voltage:
System Voltage.

3. onnect the inhibitor switch connector and disconnect the ECU connector.
5. Place the transmission in PARK or NEUTRAL.
6. Turn the key to the START position.
7. Using a voltmeter, check the voltage between ECU harness terminal 11 and ground.

Voltage:
8 or more volts.


If any of the previous tests produce unsatisfactory results, check the inhibitor switch. The harness may need to be repaired or replaced. Once repairs have been completed, road test the vehicle to confirm that the repair has corrected the problem.

If the same problem reoccurs, it is possible that there is an intermittent failure of the component or the ECU. Check for looseness at all harness junctions and test for an intermittent failure.