P0237

P0237 00

Charge Air Absolute Pressure Sensor Circuit. Short to Ground/Open.







Fault symptom
CHECK ENGINE
The engine speed drops more slowly than usual when the accelerator is released.

On-board diagnosis

Type of diagnosis:
Continuous

Enable criteria:
Ignition ON.
Battery voltage must be between 11 - 16 V.

Fault criteria:
When voltage on input below 0.30 V for more than 1.0 s.

Dependent:
None

System reaction to a fault:
Torque limited to max. 140 Nm.
Boost pressure adaption blocked.
The control module uses a substitute value that is a function of atmospheric pressure, engine speed and damper area.

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:
- Absolute pressure sensor, charge air