Operation CHARM: Car repair manuals for everyone.

Transmission Range Switch Test

Transmission Range Switch Test
1. Raise the vehicle on a lift, or apply the parking brake, block 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.





4. If the test results are OK, the transmission range switch test is complete. If there is no continuity between any terminals, go to step 5.
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.





8. If the transmission range switch continuity check is OK, remove the harness clamps (A) from the clamp bracket (B), and replace the faulty transmission range switch harness (C).





9. If there is no continuity between any terminals, remove the transmission range switch, and check the end of the selector control shaft (A).





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