P0016

P001600

Diagnostic information - DME control unit Diesel

Crankshaft sensor

DANGER
High voltage.
Death or severe injuries due to high voltage or high current.

- De-energise the vehicle in accordance with the guidelines.
- Work must not be performed on parts carrying a high voltage.

The control unit must be active in order to test internal function sequences and diagnosable inputs/outputs.
In the event of a fault, check whether the fault is permanently >present<. To perform the check, erase the fault memory, meet the diagnostic conditions and read out the fault memory again.

NOTE:
- The engine speed sensor is an rpm and reference mark sender
- In the event of a signal failure of the crankshaft sensor, the engine can no longer be started
- The dynamic response is reduced (torque limitation)
- Idle speed increase
- Deactivation of smooth-running regulator and surge damper
- Deactivation of EGR
- Camshaft diagnosis disabled

Diagnostic conditions
- Idling

Possible fault causes
- Open circuit
- Signal implausible