Hi,
I did watch your videos on the other thread. I noticed there is no change when the key is turned to the start position (no lights dimming, sounds, or anything).
I am going to start from the beginning. Do the following:
1), See if the vehicle starts if the transmission is placed in neutral.
2) If there is no change in neutral, I need you to check fuses 19 and 20 in the under-hood fuse box. In addition to confirming the fuses are good, check to make sure they are getting power. Here is a link that explains how that is done:
https://www.2carpros.com/articles/how-to-check-a-car-fuse
3) If both fuses are good and have power, locate the starter cut relay in the fuse/relay box under the left side of the dash. If there is a different relay having the same part number, switch them to see if it changes things. If there isn't a duplicate relay, here is a link that explains how to test a relay:
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
4) If the relay checks good, I need you to try something. Under the relay there will be four pins. Each is numbered 85, 86, 87, and 30. First, take a small jumper wire and jump the two terminals where pins 87 and 30 would plug in. It should engage the starter. See if that happens.
5) If the starter does engage, then I need you to find a helper. Have the helper turn the key to the start position while you probe connectors 85 and 86 for power. One of the two should have 12v and the other is a ground. Confirm one has power (12v) and the opposite one has continuity to ground.
6) If the starter doesn't engage, then either the starter is bad or the trigger wire between the relay and the starter motor is bad. The trigger wire will be a black wire with a white tracer. It will be the smaller wire on the starter motor. With everything connected electrically, have your helper turn the key to start while you check for power at the starter motor from that wire. If there is power, replace the starter motor. If there is no power, we have an open between the relay and the starter motor. Note: There is a larger wire on the starter that is direct from the battery and has power at all times. Be careful not to short that one. It may also be a good idea to confirm it has power.
If you find no power where there should be, stop there and let me know where you found the issue.
Let me know what you find or if you have other questions.
Take care,
Joe
See pics 1 and 2 for the starter wiring schematic. I had to cut the page in half to make it readable for you. I did overlap them. Pic 3 shows fuse locations. The remaining pics are the diagnostics from the manual. I think mine are easier to follow, but I may be biased. LOL
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Friday, May 13th, 2022 AT 10:35 PM