A/T Only

Closed Throttle Position Switch Inspection:

1. Disconnect Closed Throttle Position Switch connector.
2. Using an ohm meter, check continuity across terminals 1 and 2.
3. Continuity SHOULD exist with throttle CLOSED.
4. Continuity SHOULD NOT exist with throttle OPEN.
5. Replace sensor if it fails the above test.

Wide Open Throttle Position Switch Inspection:

1. Disconnect Wide Open Throttle Position Switch connector.
2. Using an ohm meter, check continuity across terminals 2 and 3.
3. Continuity SHOULD NOT exist with throttle CLOSED.
4. Continuity SHOULD exist with throttle OPEN.
5. Replace sensor if it fails the above test.