T8 / P0103 00
Read the instructions below then
start the fault diagnostic procedure.
Symptom: Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
Mass Air Flow Circuit. High Input.
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Fault symptom
Fault indicator lamp (for further information see WIS Fault diagnosis, general)
Cruise control not working.
Limp home
On-board diagnosis
Type of diagnosis:
Enable criteria:
Battery voltage must be between 11 - 16 V. |
Fault criteria:
When the frequency is higher than 11500 Hz on the input. |
(High frequency results in low flow) |
Dependent:
System reaction to a fault:
The system continues to function with a calculated air mass instead of the value from the mass air flow sensor. |
Boost pressure adaption is blocked and reset. |
Limited acceleration and idle function. |
Secondary air switched off. |
OK report:
Fault criteria NOT fulfilled for 2 s. |
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) |