Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition
The engine control module (ECM) regulates the variable cam profiles. The engine control module (ECM) checks the control signal for the cam profile valves.
The diagnostic trouble code (DTC) is stored if the control module detects that:
- Signal missing.
The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition switch position II.
- Battery voltage higher than 10.5 V.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Hint: For this function, bank 1 consists of cylinders 1, 2 and 4. Bank 2 consists of cylinders 3, 5 and 6.

Substitute value
- Both banks for variable cam profile in low lift.

Possible source
- Dirty or damaged cam profile solenoid (CPS).
- Contact resistance or oxidation in the terminals.
- Open-circuit in the power supply cable.
- Open circuit on signal cable.

Fault symptom[s]
- Malfunction indicator light (MIL), on
- Uneven idle
- Engine is difficult to start
- High fuel consumption
- Poor performance