Wheel speed signal absent.

Symptom: Speedometer or cruise-control system not working.

Wheel speed signal absent.

Fault symptoms

Speedometer or cruise-control system not working.

Conditions

•	Open/short circuit between pin 23 of the TC/ABS control module and pin 10 of the MIU (K12).

•	Open/short circuit between pin 25 of the TC/ABS control module and pin 64 of Trionic

Diagnostic help

Wheel speed can be read with the diagnostic tool from the TC/ABS control module and the receiving control module.

See fault diagnosis under “Electrical system, Main Instrument Unit” or “Engine, Trionic”.