Signal Outside Its Permitted Range

Signal outside its permitted range

Checking the connectors

Note! If diagnostic trouble codes (DTCs) other than BCM-0121, BCM-0125 or BCM-0129 are stored in the brake control module (BCM), select cancel. Fault trace these diagnostic trouble codes (DTCs) first.




- Ignition off
- Check the connectors for the brake control module (BCM) and the body sensor cluster stability sensor (BSC). Check for contact resistance. Check for oxidation
- Ensure that no sources of interference, such as a mobile telephone or radio receiver, are in the vicinity of the body sensor cluster stability sensor (BSC)
- Test drive the car according to driving schedule: 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 diagnostic trouble codes (DTCs).
If the diagnostic trouble code (DTC) status is intermittent, the cause of the fault was probably either contact resistance in the brake control module (BCM) or the body sensor cluster stability sensor (BSC) connectors, or a source of interference too close to the body sensor cluster stability sensor (BSC).

Other information
- Connecting the breakout box, B5254T7 Connecting the Breakout Box, Brake Control Module (BCM)
- Accelerometer and yaw angle sensor Service and Repair





Was the status of the diagnostic trouble code (DTC) permanent?

Yes - Checking the wiring

No - FAULT FOUND

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Checking the wiring




- Ignition off.
Check the connectors for the brake control module (BCM) and the body sensor cluster stability sensor (BSC). Check for contact resistance. Check for oxidation.
Check the wiring between the connector for the body sensor cluster stability sensor (BSC)
- terminal #1 and brake control module (BCM) terminal #A25 (#A25)
- terminal #2 and brake control module (BCM) terminal #A29 (#A29)
- terminal #3 and brake control module (BCM) terminal #A7 (#A7)
- terminal #5 and brake control module (BCM) terminal #A5 (#A5).
Check for an open-circuit.
Remedy as necessary.

Other information
- Connecting the breakout box, B5254T7 Connecting the Breakout Box, Brake Control Module (BCM)
- Accelerometer and yaw angle sensor Service and Repair
- Signal description with DSTC, B5254T7 Signal Description With DSTC
- 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, components, etc.
- Test drive the car according to: 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 - VERIFIED

No - VERIFICATION FAILED

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VERIFIED - FAULT FOUND

VERIFICATION FAILED - 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 connectors

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