Wheel speed signal absent.
Symptom: Speedometer or cruise-control system not working.
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Wheel speed signal absent.
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Fault symptoms
Speedometer or cruise-control system not working.
Conditions
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Open/short circuit between pin 23 in ABS control module and pin 3 in main instrument unit.
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Open/short circuit between pin 25 in ABS control module and pin 64 in Trionic or pin 34 in PSG16.
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Diagnostic help
The wheel speed reading can be obtained from both the ABS control module and the control module receiving the signal.
See fault diagnosis in “Electrical system, Main Instrument Unit”
or “Engine, Trionic”.
