E39 / P0111 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: CHECK ENGINE
Intake Air Temperature Sensor, Performance Problem
Fault symptom
CHECK ENGINE
On-board diagnosis
Type of diagnosis:
Enable criteria:
| The ignition has been OFF for more than 8 hours. |
| The following diagnostic trouble codes may not be generated: |
Fault criteria:
| The difference between Temperature sensor, intake air (IAT) 1 and 2 is more than 19°. |
| The difference between the engine temperature (ECT) and IAT 2 is more than the difference between ECT and IAT 1 |
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) |
