108C08

108C08 - P10B8

Information saved in
DME

Fault code
108C08 - P10B8

Fault text
Charge-air temperature sensor, plausibility: Signal hangs

Fault description
The diagnostic function monitors the charge-air temperature
sensor for an invariable signal.

Condition for fault identification
Test condition:
The fault is recognized when the voltage of the charge-air
temperature sensor does not change by at least 0.005 V.
Potential problem source(s):
- Defect in wiring harness between DME and charge-air
temperature sensor
- Charge-air temperature sensor defective
- Charge-air temperature sensor has been tampered with
- Defective DME
Terminal condition: none
Voltage condition:
- Onboard electrical system voltage between 9 V and 16 V
Temperature condition:
- Engine warmed to normal temp, above 80 °C
Time condition:
- 27 sec. after reaching engine temperature of 80 °C
Other conditions:
Drive vehicle at a speed above 40 km/h for at least 2
minutes to reduce the charge-air temperature, then allow the
engine to idle for at least 2 minutes to allow the charge-air
temperature to rise again. This sequence must be repeated
3x.

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

Action in service
- Check wiring harness between DME and charge-air
temperature sensor
- Replace charge-air temperature sensor
- Replace DME

Fault effect and breakdown warning
Breakdown notice:
Standard EML Text
Possible apparent symptoms:
Reduced power

Driver information
Warning light:
- ECE emissions warning lamp: on
- ECE electronic engine power reduction: on
- CC message: on
- US emissions warning lamp: on
- US electronic engine power reduction: on
- CC message: on

Service instruction
None