Comparison Fault

Comparison fault

Information
The diagnostic trouble code (DTC) indicates that the programmed hardware series number in the engine control module (ECM) does not correspond to the relevant hardware series number in the brake control module (BCM).
This may be because:
- The engine control module (ECM) or brake control module (BCM) has been replaced, resulting in the hardware series numbers not corresponding.

Hint: Read off diagnostic trouble codes (DTCs) in the brake control module (BCM).

For further information about this diagnostic trouble code (DTC), select Information, then DTC information.


Continue - Verification

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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 - Information

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Verification

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




- Ignition off
- Reinstall connectors, components etc.
- Start the engine.

Did the engine start?

Yes - Fault Found

No - Fault-tracing information

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