Transmission Range Switch Test

Transmission Range Switch Test

1. Raise the vehicle on a lift, or apply the parking brake, block the rear wheels, and raise the front of the vehicle. Make sure it is securely supported.

2. Disconnect the transmission range switch harness connector (A), and remove the connector from the connector bracket.






3. Check for continuity between terminals at the harness connector. There should be continuity between the terminals in the following table for each switch position.

Transmission Range Switch Harness Connector





4. Transmission range switch test is completed if the test results are OK.
If there is no continuity between any terminals, go to step 5 Transmission Range Switch Test.

5. Remove the transmission range switch cover.






6. Disconnect the transmission range switch connector.






7. Check for continuity between terminals at the switch connector. There should be continuity between the terminals in the following table for each switch position.

Transmission Range Switch Connector





8. If the transmission range switch continuity check is OK, go to step 9 Transmission Range Switch Test and replace the faulty transmission range switch harness. If there is no continuity between any terminals, go to step 10 Transmission Range Switch Test.

9. Remove the harness clamps (A) from the clamp bracket (B), and replace the faulty transmission range switch harness (C), then go to step 12 Transmission Range Switch Test.






10. Remove the transmission range switch, and check the end of the selector control shaft (A).









11. If the measurement of the selector control shaft end is within the specification, replace the transmission range switch Service and Repair. If the measurement is out of the specification, repair the selector control shaft end, and recheck the transmission range switch continuity.

12. Check the connectors for rust, dirt, or oil, and clean or repair if necessary, then connect the connector securely.

13. Install the transmission range switch cover.