Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




- Diagnostic trouble code (DTC) ECM-6440 is stored if the engine control module (ECM) registers a fault in the signal cable to the camshaft reset valve.

Substitute value
- shutting off the variable camshaft
- the camshaft remains in the maximum performance position

Possible source

Signal too high:
- short-circuit to supply voltage in the signal cable
- defective reset valve

Signal too low:
- short-circuit to ground in the signal cable
- power supply cable short-circuited to ground
- defective camshaft reset valve

Signal missing:
- contact resistance
- open-circuit in signal cable
- open-circuit in the power supply cable
- defective camshaft reset valve

Fault symptom[s]
- malfunction indicator lamp (MIL) lit
- uneven idle