Diesel Data: Automotive Repair

Low Beam Relay: Testing and Inspection

Power Relay Test

Five-terminal type

Check for continuity between the terminals.

- There should be continuity between the No. 1 and No. 2 terminals when power and ground are connected to the No. 3 and No. 5 terminals.




- There should be continuity between the No. 1 and No. 4 terminals when power is disconnected.

- Fan control relay
- Low beam cut relay (Canada)




- Windshield wiper intermittent relay