CAUTION: Tester cables must not be connected to ground.
3. Start the engine. For a perfectly working injector output stage, the following display must be shown at starting rpm.
NOTE: If the engine does not start, or if the idling speed drops, replace tester cable connected to special tool.
P0324
P0324
Knock Control Zero Test - Signal Implausible
Diagnosis conditions
- Engine speed less than 5600 rpm
- Knock control active
- Engine load greater than 45 %
Possible fault cause
- DME control module
NOTE: When a fault is stored, the ignition angle is retarded for all cylinders in the range in which knock control is active.
Diagnosis/Troubleshooting
DME 7.8
P0327
210 Knock sensor 1 - below limit
Diagnosis conditions
- Engine speed more than 3600 rpm
- Engine load greater than 45 %
Possible fault cause
- Break in wiring or short to ground
- Contact corrosion on the connector
- Knock sensor loose
- Short circuit to B+
- Knock sensor
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.
- If knock control becomes active here, this may indicate engine damage (increased noise level)