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ABS Module not communicating

#895589
Christian
Christian
Participant

After testing the CAN wires on that circuit (all reading 60ohms), checked all powers and grounds to the Skid control ECU. All of them were good, so I ordered a used replacement skid control ecu (found the same part number from a 2007 highlander hybrid). When replacing the ecu I unhooked the negative on the battery for it, swapped it out. Once I cleared the codes, there was no longer any ‘current’ codes, no lights, and the brakes and power steering work better than they have in a long time .
Lastly, I had to do the zero calibration on the new unit.

I did not have to go to a dealer or use special software to have any calibration done on the ecu (zero point calibration done with diagnostic tool), I’m not sure if that’s because I used an ecu from the same model (off by a year), or because it does not require it.

Happy I got my car back, if anyone has questions on the process, lemme know.

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