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Old 01-12-2018, 05:01 PM
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we350z we350z is offline
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IFH-0009 / 200.159 Error for EHC Module

Went thru much drama but was finally able to get INPA/DIS to connect to other modules (i.e. Airbag, Steering Angle Sensor, etc...) than just Engine and Transmission.

However I still can't connect to the EHC module I am receiving "IFH-0009 No response from controller" in INPA and in DIS something similar 200 error.

I have checked all the fuses for EHC they are fine. Is there a relay for it as well? I'm not sure what else I can do here. I'm guessing the EHC module brain near the battery has actually gone bad. I am going to check the connection and possibly unplug / replug it but I am not very hopeful. I guess I can check the 12V power with a multimeter as well. But not sure i want to go through expense ($100 for a used module on eBay) and hassle of possibly having to code it...

Even if that somehow magically works then I still have a system with a slow leak, a faulty driver side height sensor and possibly a burned out compressor (at the very best 18 years old and weak).

At this point I'm not really sure its worth any more of my time, effort and money to fix this poorly designed system.

Coilovers to the rescue!
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Last edited by we350z; 01-12-2018 at 07:25 PM.
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