There are a couple things that can cause this. So, we need to go to the relay and jump the relay to find out if the pump comes on. If the pump comes on, then we may have an issue with the relay, so we need to run through these guides to check the relay and do this testing:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
https://www.2carpros.com/articles/how-to-check-wiring
Then we need to check to see if we have power on the white and black wire at the relay. If there is no power, then the ASD relay is the issue. If there is, then the ECM is not grounding this relay and needs to be replaced.
Please see the wiring diagram below and let me know what you find with this. Let me know if you have questions and we can go from there. Thanks
Images (Click to enlarge)
Mar 21, 2022 at 8:30 AM
