SAAB WIS ONLINE

C1390

Read the instructions below then start the fault diagnostic procedure.

Symptom: ABS warning lamp on. ABS not functioning.

C1390


Wheel Sensor. Wrong Number of Teeth


Fault symptoms

ABS warning lamp on. ABS not functioning.

Conditions

The respective wheel speed value is compared with a reference value (=the filtered mean value of all wheel speeds).


Speed of one wheel >25% higher than the reference speed over 20 s.

Speed of two wheels >6% higher than the reference speed over 80 s.

Speed of one wheel <6% lower than the reference speed for 20 s. Alternatively, speed of two wheels lower for 10s.

ABS modulation continuous for more than 60 s.


Diagnostic help




The respective wheel speed sensor signal can be read using the diagnostic tool.



- Select "Read values".

- Select: "Wheel speed".


The current wheel speed in km/h is displayed.