Checking wiring and sensors
Checking the power supply
Check the signal cable between control module
- terminal #45 (#A45) (left front)
- #34 (#A34) (right front).
and terminal #1 on the relevant sensor. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
Checking the signal cable
Check the signal cable between control module
- terminal #46 (#A46) (left front)
- #33 (#A33) (right front).
and terminal #2 on the relevant sensor. Check for an open-circuit. Check for a short-circuit to ground. Check for a short-circuit to supply voltage.
Checking the function of the sensor
Check the sensor. Ensure that the breakout box is connected, the sensor is connected and the ignition is on. Measure the signal from the sensor. Connect a voltmeter between:
- terminals #45 (#A45) and #46 (#A46) (left front)
- terminals #34 (#A34) and #33 (#A33) (right front).
on the breakout box. The voltage should vary by approximately 1 V when the pulse wheel is rotating. Replace the wheel sensor if the voltage is faulty.
HINT: Particularly check the wiring at the steering shaft.
Remedy as necessary.
Other information:
- To connect the breakout box, see Connecting The Breakout Box
- To replace the wheel sensor, see Wheel sensor, front, replacing
- For information about signals, see Signal specification, brake control module (BCM) with STC/ TRACS and Signal specification, brake control module (BCM) with DSTC (dynamic stability and traction control)
- See Checking wiring and terminals
- Continue
Refer to Verification