Faulty Signal

Faulty signal

Checking the wiring




- Ignition off.
Check the wiring between the active yaw control sensor:
- terminal #1 and control module terminal #A25 (#A25)
- terminal #2 and control module terminal #A29 (#A29)
- terminal #3 and control module terminal #A6 (#A6)
- terminal #5 and control module terminal #A39 (#A39).
check for an open-circuit.

Hint: Read off the relevant signal for the diagnostic trouble code (DTC). Check that the value is within its permitted range.
- Steering wheel angle sensor, offset value. The value must be 0° ±17 °/s.
- Yaw rate sensor, offset value. The value must be 0° ±6.0 °/s.
- Lateral accelerometer, offset value. The value must be 0° ±1.7 m/s.
- Accelerometer, offset value. The value must be 0° ±1.7 m/s.

If the value is incorrect, this can mean a damaged AYC sensor.
Remedy as necessary.

Other information
- To connect the breakout box, see Connecting the breakout box, brake control module (BCM) Connecting the Breakout Box
- To replace the active yaw control sensor, see Active yaw control sensor, replacing Active Yaw Control Sensor, Replacing
- For information about signals, Signal Specification, Brake Control Module (BCM) with DSTC (Dynamic Stability and Traction Control)
- Checking wiring and terminals Checking Wiring And Terminals













Continue - Verification

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Verification




Verification

Hint: After carrying out the repair, check that the fault has been remedied.








- Ignition off
- Reconnect the connectors, reinstall components etc.
- Test drive the car. See Test Drive Form (DSTC (dynamic stability and traction control) /brake control module), description Test Drive Form (DSTC (Dynamic Stability And Traction Control) /Brake Control Module), Description
- Ignition on.
Read off the status of the diagnostic trouble code (DTC).





Is the status of the diagnostic trouble code (DTC) intermittent?

Yes - Verification completed

No - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - Exit Fault-Tracing

No - Attempt New Test

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Attempt New Test - Checking the wiring

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