Hi and thanks for using 2CarPros.
I need you to check a couple things. First, the starter relay needs ground for the system to operate. Check the relay first. Switch it with a different relay with the same part number.
or check this link.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
Next, there could be a problem with the neutral safety switch. See if the starter will engage if you put the shifter in neutral. Also, if it does not, put it in park, parking brake on, and slid under the truck to see if the switch is disconnected or damaged. The switch is on the left side of the transmission.
If all of that fails, I want you to try this test:
https://www.2carpros.com/articles/starter-not-working-repair
I attached a schematic of the starter system for you to review. Let me know what you find.
Joe
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Monday, March 8th, 2021 AT 5:52 PM
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