Transmission Position Sensor/Switch: Testing and Inspection

Transmission Range Switch Test

1. Disconnect the transmission range switch harness connector (A), then remove the connector (B) from its bracket.






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

3. Transmission range switch test is completed if the test results are OK, go to step 10. If there is no continuity between any terminals, go to step 4.

Transmission Range Switch Harness Connector





4. Remove the transmission range switch cover (A).






5. Disconnect the transmission range switch connector (A).






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

7. If the transmission range switch continuity check is OK, replace the faulty transmission range switch harness, then go to step 10. If there is no continuity between any terminals, go to step 8.

Transmission Range Switch Connector





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





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

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