U0109 Diagnostic Trouble Code Discussion for November 2021
Lost communication to FSCM
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| Help Request | Posted | |
| 2011 Chevrolet Traverse LT 3.6L No Start VIN: 1GNKVGEDXB U0109: Lost communication to FSCM. I have checked power and grounds are good. The new FSCM module won't allow communication to the differential module. The HS-LAN ckts are not open and not shorted to power or ground. Good voltage at the FSCM when ignition is turned on. I have disconnected t... |
November 16, 2021 |
