PSG16 / P0103 07
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Performance loss.
Mass air flow sensor circuit high input.
Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Performance loss.
On-board diagnosis
Type of diagnosis:
Enable criteria:
| Engine speed less than 5000 rpm. |
Fault criteria:
| Signal on control module sensor input greater than 800 kg/h for more than 2 seconds. |
Dependent:
System reaction to a fault:
| Limp Home, engine torque limitation. |
| EGR turned off in case of fault. |
| The control module uses 800 kg/h as a substitute value. |
OK report:
| Input conditions fulfilled without a fault reported. |
Checking the wiring harness
| • | Faults in the control module female connector can be the cause of the DTC. Check the connector with respect to oxidation, depressed pins and pin clamping force. |
| • | 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:
Functions in the diagnostic tool related to the fault:
| (See also description of readings/activations in diagnostic tool) |
