Diesel Data: Automotive Repair

No Wheel Speed Signal

No wheel-speed signal





Fault symptoms
Speedometer or cruise control system not working.

Conditions
^ Break or short circuit between TC/ABS control module pin 23 and main instrument unit pin 10 (K12).
^ Break or short circuit between TC/ABS control module pin 25 and Trionic pin 63.

Diagnostic help
A wheel speed reading can be obtained with the diagnostic tool in both the TC/ABS control module and receiving control modules.