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Question:

Will the main wiring harness from a 2003 Chevy Blazer work on my 2001?

I just purchased a 2001 Blazer LS and the engine is burnt. Well from what I can tell not the engine just the main Wiring Harness ( the one to the left of the motor). It looks like the exhaust piece that sticks out was touching the wiring harness eventually leading to a fire. I am wondering if anyone can tell me if the Wiring harness from a 2003 will fit my 2001?

Answer:

2 points thanks!
It may not work can't remember for sure but, I think the 01 is Drive By Cable (DBC) throttle body and the 03 is Drive By Wire (DBW). You can check by looking at the throttle body. If the throttle you have has a cable to operate it the 03 harness will not work. If the throttle body has an electrical plug then the harness will work. All plugs and connectors are the same except, the 01 has no plug for the throttle body and the 03 harness has one. Also there are connections for the throttle position sensor on the 01 harness. Anyhow, if you have the electric throttle then yes it will work.

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