Hi,
First, I attached a wiring schematic I was able to find below. Here is what I need you to check. First, make sure there is power to the engine controller (pin 3) red wire. That power is provided via a fusible link. (See schematic).
If that is good, then we need to check for power at the ASD (automatic shutdown) relay. Power to the relay (power side for coil) is via the same red wire. When the relay is actuated, power is transmitted through the gray wire running to the + side of the coil. The Auto Shutdown (ASD) Relay is located in the engine compartment near the 50-way bulkhead connector. See pic 2 below
Let me know what you find or if you have other questions. Here is a link that you may find helpful as well:
https://www.2carpros.com/articles/how-to-check-wiring
Take care,
Joe
See pic below.
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Tuesday, December 21st, 2021 AT 6:22 PM