Fault-Tracing Information
Fault-tracing
Checking the wiring
- Ignition off
- Disconnect connector D on the rear electronic module (REM).
- Check the connectors for loose connections, damaged or bent terminal pins and oxidation.
- Check the signal line for open circuit, short-circuit to ground and short-circuit to voltage.
Take readings between:
- Rear electronic module (REM) #D26 (#26) and siren (BBS).
Remedy as necessary.
Other information
- Connecting the breakout box Connecting The Breakout Box, Rear Electronic Module (REM)
- Checking wiring and terminals Checking Wiring And Terminals
- Anti-theft protection siren Service and Repair
Continue - Communication test
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Replacing the control module
Replace siren (BBS).
Other information
- Anti-theft protection siren Service and Repair
- Connecting the breakout box Connecting The Breakout Box, Rear Electronic Module (REM)
- 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
- Reinstall the connectors, components etc.
- Ignition on.
Activate the alarm.
Check that the functions are OK.
Are the functions OK?
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 wiring
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Communication test
Check whether the siren responds with incorrect information by:
- Erase diagnostic trouble codes
- Close all vehicle doors.
- Wait 5 seconds.
- Read off diagnostic trouble codes (DTCs).
- Check for any DTCs.
Are any DTCs stored?
Yes - Replacing the control module
No - Verification
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