ABS 5.4

DTC C1387 Wheel Sensor Rear Right. No Signal






Fault symptoms
ABS warning lamp on. ABS not functioning.

Conditions
DTC is generated by open circuit.

Diagnostic help
^ Rear right wheel speed sensor can be read using the diagnostic tool.
- Select "Read Values".
- Select "Wheel Speed Rear Right".

The current wheel speed in km/h is displayed.

With the rear wheels of the car raised off the ground, the diagnostic tool should show a reading of about 5 km/h when the RR wheel is rotated by hand at a speed of about 1 turn a second.

^ For tracing electrical faults, the diagnostic tool can be used to take readings from the control module's wheel-sensor inputs.
- Select "Read Values"
- Select "Wheel-sensor output"

The reading is used to determine whether there is a break in the circuit between the control module and one of the wheel sensors. If the circuit is OK, the reading should be approximately 3.4 V.

If the circuit to the rear right wheel is not OK, the value will be approx. 2.10 V.