T8 / P0112 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Limp home
Intake Air Temperature Sensor Circuit. Short to Ground.
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Limp home
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Battery voltage must be between 11 - 16 V. |
Fault criteria:
| When voltage on input below 0.20V for more than 1.0 s. |
Dependent:
System reaction to a fault:
| Torque limited to max. 170Nm. |
| Correction of intake air temperature for ignition timing blocked. |
| Substitute value for intake air temperature is current coolant temperature up to +40°C. If coolant temperature exceeds +40°C, the substitute value is +40°C. |
OK report:
| Fault criteria NOT fulfilled for 2 s with engine running. |
Fault handling:
| (See section Fault handling III, "Other emission-related components and functions" for more information.) |
Checking the wiring harness
Move the wiring harness at several spots and in several directions to reveal intermittent breaks and short-circuits. Check switches, connectors and crimp connections for oxidation, retracted pins and pin clamping force.
Diagnostic help
Diagnosis regards:
| Electrical fault in connecting leads or component. |
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
