Fault Conditions

P1105

Charge Air Absolute Pressure Sensor. Hose leakage.







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:
- Engine running. Engine speed exceeding 1500 rpm. Intake manifold pressure exceeding a value that is 5 kPa lower than atmospheric pressure.

Fault criteria:
- Charge air pressure below a value 5 kPa higher than atmospheric pressure. Criteria fulfilled for more than 3 s.

Dependents:
- P0106, P0107, P0108, P1106, P1107, P1108, P1631, P1632, P1633 and P1641.

System reaction to a fault:
- Density compensation of the throttle angle is blocked.

OK report:
- Charge air pressure exceeds atmospheric pressure by more than 5kPa on one separate occasion during the driving cycle

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

- Type III.

Diagnostic help
Fault diagnosis concerns a leak in the hose to the sensor or between the compressor and the throttle body.

Functions in the diagnostic tool related to the fault:
- Diagnostic status for the diagnosis.
- Pressure sensor value, unit kPa.

During acceleration, the value should exceed the value for the two other pressure sensors.

For more information, refer to scan tool testing. Menu Read Values

Proceed to Diagnostic Procedures Checking the Hose