Backup Lamp Switch: Testing and Inspection

Back-up Light Switch Test

1. Disconnect the back-up light switch 2P connector (A).






2. Check for continuity between back-up light switch 2P connector terminals No. 1 and No. 2. There should be continuity when the shift lever is in reverse. If there is no continuity, go to step 3.






3. Remove the back-up light switch (A). Check for continuity between back-up light switch 2P connector terminals No. 1 and No. 2. There should be continuity when the switch end (B) is pressed, and no continuity when the switch end is released. If the result is faulty, replace the back-up light switch. If the switch is OK, check the reverse shift piece in the transmission.

4. Install the removed or the new back-up light switch with a new washer (C).

5. Connect the back-up light switch 2P connector.