P112F

101F01 - P112F

Information saved in
DME

Fault code
101F01 - P112F

Fault text
Throttle-valve angle - intake-manifold pressure, correlation:
limit value exceeded

Fault description
The diagnostic function monitors the throttle valve aperture
and the current intake manifold pressure reading to
determine whether they are mutually plausible.

Condition for fault identification
Test condition:
The fault is recognized when the relationship between the
indicated intake manifold pressure and the mass airflow
calculated based on throttle-valve angle is not correct.
Potential problem source(s):
- Measured value for intake manifold pressure (absolute) too
high
- Vacuum leak within induction tract/crankcase
- Incorrect throttle-valve angle
- Pressure sensor defective
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- 30 °C < intake-air temperature < 120 °C
- -30 °C < coolant temperature
Time condition:
- None
Other conditions:
- Engine on
- Pressure drop at throttle valve exceeds 18 hPa
- 745hPa < barometric pressure
- 500 rpm < engine speed < 7000 rpm
- 133 rpm < dynamic rpm response (rpm window)
- 7.7% < dynamic load response (load window)

Condition for fault memory entry
This fault is logged in the control module's fault memory
immediately.

Action in service
- Check intake system and crankcase for leakage
- Check throttle valve (contamination, carbon deposits,
icing)
- Check plug and wiring harness between intake-manifold
pressure sensor and DME
- Check plug, wiring harness at electric throttle-valve
actuator
- Replace pressure sensor
- Replace throttle valve

Fault effect and breakdown warning
Breakdown notice:
- none
Possible apparent symptoms:
- none

Driver information
Warning light:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
- US emissions warning lamp: off
- US electronic engine power reduction: off
- CC message: none

Service instruction
None