P112E

101F02 - P112E

Information saved in
DME

Fault code
101F02 - P112E

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

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) is
too low
- Defective plug or wiring harness
- 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:
- None
Time condition:
- None
Other conditions:
- Engine on
- Pressure drop at throttle valve exceeds 18 hPa

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 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