Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information ECM-618C

Condition




The engine control module (ECM) checks that control of the exhaust camshaft is quick enough. This means that the exhaust camshaft (actual value) reaches the position requested by the engine control module (ECM) quickly enough. The diagnostic trouble code (DTC) is stored if the requested position is not reached within a certain time.
The diagnostic trouble code can be diagnosed at cold-start, with the engine running and camshaft control active.

Hint: The term cold-start means that an engine start when catalytic converter heating is requested by Engine control module (ECM). Catalytic converter heating is requested when the engine has been off and cooled for at least 15 minutes, and the engine temperature at start is lower than 70 °C.

Substitute value
- None.

Possible source
- Low oil pressure
- Poor oil quality
- Damaged reset valve
- Mechanical fault in the variable valve timing (VVT) unit.

Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.