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ETM to ECM wiring/Main Relay

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subzerocarfanatic
Posts: 376
Joined: 19 Oct 2019, 18:41
Year and Model: 2000 Volvo C70 HT
Location: ND
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Post by subzerocarfanatic »

I am still learning to figure out all the wiring schematics and diagrams on the C70, can anyone help me with something.I need to know which pin #'s from individual wires coming out of the ECM are related to the Electronic Throttle Module.
I am trying to find and follow the wires from the ECM that go directly to the ETM so I can trace them to find a break or short and I also want to find the ones going to Relay #1 ( the blue one in front right corner) in the main fuse box so I can trace where they lead back to the ETM. There has to be a break or short between one of these points or bad connection because the ETM dash warning light only lights up when hitting a bad bump in the road. There is also a 15 amp fuse which is related to the ETM in the main fuse box right by the main relay that is related to the ETM.
I just got my power probe ETC3000 short and open wire tracer in yesterday and it would help to know which ones are directly related to the ETM so I can trace them.
I pray it's not the ETM wiring harness itself or bad wire inside the ETM, It has a used xemodex built in 2012 ETM in it now.

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