When you say you check the relay, how did you do that? We need to check and see if the PCM is grounding the relay. If it is not then that is the issue. If the PCM is grounding the relay and the relay has been swapped or replaced then you have a wiring issue.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
Take a look at the wiring diagram and remove the relay. Then put your test light on battery positive and then touch the probe to the B1 position of the relay and turn the key on. Does the test light come on? If not, the PCM is not grounding the relay. If it does then the relay or the wire to the pump is the issue.
Let me know what questions you have. Thanks
Nov 12, 2020 at 9:10 AM
