Enabling fan in truck ecu 03 Tahoe
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Enabling fan in truck ecu 03 Tahoe
Hi again folks. Could anyone tell me witch pins I’ll use on a 03 ecu Truck/Tahoe for enabling the fan 1 and 2? I do have the diagram for 02 mod, and it’s not the same. I have tried that. Pin 42 and 33. I have programmed it to serial fans with two outputs.
Thanx for all help.
Reg Chris.
Thanx for all help.
Reg Chris.
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I have the diagrams for both and neither shows a fan circuit, the only thing the show in the cooling section of the wiring diagrams is the coolant level. If you want them to be email to you, let me know. I ran in to the same issue and plan on running F-body code, if I can't figure it out
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Not exactly, you should be able to use your PCM and harness, but would have to add wiring to it. Then flash the code from an F-body. I'm sure somebody has worked around this already. The thing that bothers me is the F-bodies and the truck use differant method to know which gear the tranny is in, so running the F-body operating system is opening up a new bag of worms
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Litle info.
Hi again folks. We don’t need to flash the ecu with new software. It is already in the software. It only needs to be enabled with software like EFI LIVE. When it comes to the connectors you need to cut out a couple of pins from an old wiring harness and push it in, true the silicone in the connectors.
That is really all the job. At this point i have not got this to work on a 03 mod Tahoe yet. Yes I have done this many times on a 02 Tahoe. I’m working on a 03 these days to get it to work. Yes you can buy a standalone wiring harness with a relay and temp sens, but I want it one hundred percent integrated in the truck….
That is really all the job. At this point i have not got this to work on a 03 mod Tahoe yet. Yes I have done this many times on a 02 Tahoe. I’m working on a 03 these days to get it to work. Yes you can buy a standalone wiring harness with a relay and temp sens, but I want it one hundred percent integrated in the truck….
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