P0034

P0034 00

Charge Air Bypass Valve Control Circuit, Open/Short to Ground.







Fault symptom
CHECK ENGINE
Limp home

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Battery voltage must be between 11 - 16 V.
Engine running.
Output to solenoid valve is inactive.

Fault criteria:
When voltage on the output is below 2.0 V for more than 1 s.

Dependent:
None

System reaction to a fault:
Torque limited to max. 170 Nm.
Boost pressure adaption is blocked and reset.
Boost pressure control is blocked.
The system is pressure controlled.

OK report:
When fault criteria NOT fulfilled for 2 s.

Fault handling:
Type III
(See Description of On-Board Diagnostics/Fault handling III, "Other emission-related components and functions" for more information.)

Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.

Diagnostic help

Diagnosis regards:
Electrical fault in connecting leads or component.

Functions in the diagnostic tool related to the fault:
Test value:
- Charge Air Bypass Valve

Activation:
- Charge Air Bypass Valve