P0028

P0028

Valve Lift Control, Bank 2 Output Stage - Open Circuit

Diagnosis conditions
- Engine running

Possible fault cause
- Open circuit in triggering wire
- Open circuit in B+ supply
- Solenoid hydraulic valve faulty

Affected terminals
III/26

Diagnosis/troubleshooting

NOTE: The wiring for the solenoid hydraulic valve is routed via the connector X 59/1 pin 11.







Valve lift control, bank 2, output stage - below limit

Diagnosis conditions
- Engine running

Possible fault cause
- Triggering wire short to ground
- Solenoid hydraulic valve faulty

Affected terminals
III/26

Diagnosis/troubleshooting

NOTE: The wiring for the solenoid hydraulic valve is routed via the connector X 59/1 pin 11.







Valve lift control, bank 2, output stage - above limit

Diagnosis conditions
- Engine running

Possible fault cause
- Triggering wire short to B+

Affected terminals
III/26

Diagnosis/troubleshooting

NOTE: The wiring for the solenoid hydraulic valve is routed via the connector X 59/1 pin 11.