Quote:
Originally Posted by ROLLGUY
...... I scanned for codes again, and got the same message when checking "CDI 3 Common Rail Diesel Injection 3" I got- "Fault in communication with ECU"
I tried clearing codes in other modules, and they cleared just fine (mostly under voltage codes). I believe this is all related, but have no idea how to fix it.
EDIT: Also, the alternator is charging at 14.6 volts +-
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The 'fault in communication with the ECU' error code isn't the same thing as the first error code saying the ECU couldn't communicate with the Glow Plug controller.
The 'fault in communication with the ECU' error is telling you your scan tool can't seem to interface/find the N3/9 main CDI control unit.
Was the ignition on when you scanned for codes? If not the scan-tool won't find the N3/9 module because it isn't powered up.