Signal Missing

Signal missing

Checking for contact resistance and oxidation




- 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
- Ignition on
- Test drive. 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
- Read off diagnostic trouble codes (DTCs).
If the status of the diagnostic trouble code (DTC) is intermittent, the cause of the fault was probably contact resistance or oxidation in the connectors for the control module or 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
- Checking wiring and terminals Checking Wiring and Terminals





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

Yes - FAULT FOUND

No - Checking the wiring

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Checking the wiring




- Ignition off.
Check the wiring between the body sensor cluster stability sensor (BSC):
- terminal #1 and brake control module (BCM) terminal #25 (#A25)
- terminal #2 and brake control module (BCM) terminal #29 (#A29)
- terminal #3 and brake control module (BCM) terminal #7 (#A7)
- terminal #5 and brake control module (BCM) terminal #5 (#A5).
Check for an open-circuit.
Also check that the body sensor cluster stability sensor (BSC) is correctly installed and that the bracket is secured.
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 for contact resistance and oxidation

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