Ford F8PZ-14N135-CA Relay

Many vehicle accessories utilize relays for transmitting electrical signals. To check if the relay is fine, take it out of the car and test for continuity across the power circuit terminals. Place a fused jumper wire between one control circuit terminal and the positive battery terminal and another jumper wire between the other control circuit terminal and ground. Check for continuity across the power circuit terminals. It requires replacement if any of these tests are failed by the relay.

If the relay is defective, that component will not operate properly.

If a faulty relay is suspected, it can be removed and tested by a dealer service department or a repair shop.

If the relay doesn't click during the test, you may try swapping the jumper wires on the control circuit terminals, as polarity can be critical on some relays. If it still doesn't click, it's likely defective and should be replaced.

Remove the relay from the vehicle and check for continuity between the relay power circuit terminals. There should be no continuity between terminal 30 and 87.