01177 - Engine Control Unit
01177 - Engine Control Unit: Faulty
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Possible Causes
Wiring and/or Connector(s) from/to Engine Control Module (ECM) faulty
Engine Control Module (ECM) incompatible
Engine Control Module (ECM) faulty
Engine Control Module (ECM) modified
Immobilizer removed
Chiptuning (Chip replaced)
Possible Solutions
Check Wiring and/or Connector(s) from/to Engine Control Module (ECM)
Check/Replace Engine Control Module (ECM)
Check Engine Control Module (ECM) for Modifications
Old Style Chip Tuning where actual Chips are replaced may have resulted in bad Soldering or otherwise broken the ECM.
01177 - Engine Control Unit: Unauthorized
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Engine Start not permitted
Possible Causes
Immobilizer not adapted
Engine Control Module (ECM) modified
Immobilizer removed
Possible Solutions
Check/Adapt Immobilizer
01177 - Engine Control Unit: Not Currently Testable
Special Notes
When Found in Instrument Cluster (J285), check Engine Control Module (ECM/#01) for Fault Codes. This Code may be stored when the Cluster is unable to properly determine the Status of the ECM due to Communication Issues or because the ECM is occupied by other Tasks.