I have replaced both head gaskets, put everything back together, and tried to start the Cherokee and it will only turn over, no sparks and is throwing a P1389 code Automated Shutdown Relay (ASD) voltage code. I have double checked timing, swapped ASD rely with TCM and still now start, only turns over.

Also, the battery temp sensor got damaged during reinstall, would this impact the ASD circuit?


Any help would be appreciated. Thanks.