P1385
P1385Knock Control Offset - Signal Implausible
Diagnosis conditions
- Time elapsed after engine start-up > 10 seconds
- Engine speed less than 5,600 rpm
- Knock control active
- Engine load greater than 45 %
Possible fault cause
- DME control module faulty
Affected terminals
-
Diagnosis/troubleshooting
NOTE:
- When a fault is stored, the ignition angle is retarded for all cylinders in the range in which knock control is active.
- Knock control adaptation is inactive.
NOTE: If control module connector A was disconnected from the DME in the course of troubleshooting or if the voltage supply was interrupted elsewhere (battery, fuse), the throttle adjusting unit must be adapted.
