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Cannot communicate to EZ1 & EZ2 module, what do I replace?

1384 Views 6 Replies 3 Participants Last post by  Perkunas
My multiplexer has been great aside from not being able to read a couple modules. I'm thinking it's potentially the car and not the multiplexer.

I have a few spare computers around, wondering what am I supposed to replace to test?
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He should only have one that operates both coils, hence my confusion. There are pins from the two coils in the 38 pin connector; one pin for each terminal 1 on the coil, and a combined pin for terminals 15.

Jon
If you are not sure whether it's the ezl module or the multiplexer, try doing a blink code reading. Here's the hook up and codes for the LH equipped 500:

Jon
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