C1390
Read the instructions below then
start the fault diagnostic procedure.
Symptom: ABS, brakes and central warning lamps are on.
TCS OFF indicator lamp is on.
No ABS or TCS function.
Wheel Sensor. Wrong Number of Teeth
Fault symptoms
ABS, brakes and central warning lamps are on.
TCS OFF indicator lamp is on.
No ABS or TCS function.
Conditions
The respective wheel speed value is compared with a reference value (=the filtered mean value of all wheel speeds).
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One wheel speed >25% higher than the reference speed for 20 seconds.
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Two wheel speeds >6% higher than the reference speed for 80 seconds.
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One wheel speed <6% lower than the reference speed for 20 seconds, or two wheel speeds for 10 seconds.
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Continuous ABS modulation for more than 60 seconds.
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Diagnostic help
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The respective wheel speed sensor signal can be read using the diagnostic tool.
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Current wheel speed in km/h (mph) is displayed.
