Fault Conditions

P1106

Charge Air Absolute Pressure Sensor Circuit. Performance Problem.







Fault symptoms
- CHECK ENGINE.
- Engine speed drops slower than normal when accelerator pedal is released.

On-Board Diagnostics

Type of diagnosis:
- Continuous. But interrupted when fault criteria fulfilled and will not restart until next driving cycle.

Enable criteria:
- Crankshaft stationary, even after ignition OFF. Car stationary. The other two absolute pressure sensors deviate less than 10 kPa from each other.

Fault criteria:
- Sensor value differs more than 15 kPa from atmosphere absolute pressure sensor.

Dependents:
- P0336 and P0337.

System reaction to a fault:
- Density compensation of the throttle angle is blocked. Charge air adaptation is blocked and zeroed. As a substitute value the atmospheric pressure sensor is used.

OK report:
- Fault criteria for P1106, P1107 or P1108 not fulfilled.

Fault handling: (For more information, Fault Handling III Other Emission-Related Components & Function)

- Type III.

Diagnostic help
Fault diagnosis concerns sensor fault.

Functions in the diagnostic tool related to the fault:
- Pressure sensor value, unit kpa.

With the engine stationary, the value should correspond with the two other pressure sensors. Accepted difference is 10 kPa.

For more information, Scan Tool Testing and Procedures

Proceed to Diagnostic Procedures Diagnostic Procedure