P0112
P0112 00
Intake Air Temperature Sensor Circuit. Short to Ground.
Fault symptom
CHECK ENGINE
Limp home
On-board diagnosis
Type of diagnosis:
Continuous
Enable criteria:
Battery voltage must be between 11 - 16 V.
Ignition ON.
Fault criteria:
When voltage on input below 0.20 V for more than 1.0 s.
Dependent:
None
System reaction to a fault:
Torque limited to max. 170 Nm.
Correction of intake air temperature for ignition timing blocked.
Substitute value for intake air temperature is current coolant temperature up to +40 degree C.
If coolant temperature exceeds +40 degree C, the substitute value is +40 degree C.
OK report:
Fault criteria NOT fulfilled for 2 s with engine running.
Fault handling:
Type III
(See Description of On-Board Diagnostics/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:
Test value:
- Intake Air Temperature