1.1.3.4.1.8. Steering column module
Warning!Communication with ECU required.
2. Check component N80 (Steering column module).
Read and process fault code from control module N80 (Steering column module).
Possible cause and remedy
- Read and process fault code from control module N80 (Steering column module).
End of test
Part 1
No CAN message was received from control unit N80 (Steering column module).
Possible cause:
- Check the CAN communication with control unit N80 (Steering column module).
- Chassis CAN bus
Affected functions:
- CAN Communication
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Test 1: Engine compartment CAN test
Test 2: Chassis CAN bus
Test 3: CAN communication is faulty.
1. Engine compartment CAN test
Test 1.1: Engine compartment CAN test
1.1. Engine compartment CAN test
Test 1.1.1: Procedure in case of CAN faults
Test 1.1.2: Read current CAN configuration and CAN fault codes
Test 1.1.3: Further CAN test options
1.1.1. Procedure in case of CAN faults
Test 1.1.1.1: How do I quickly reach my goal?
Test 1.1.1.2: General test information
Test 1.1.1.3: General CAN fundamentals
Test 1.1.1.4: Possible aids and their usage
1.1.1.1. How do I quickly reach my goal?
How do I quickly reach my goal?First call up menu item 'Evaluation of CAN fault codes' in case of CAN timeout fault codes and communication
errors.The resulting tests must be performed.Menu item 'Further CAN test options' should only be called up if the above-specified tests do not
produce the desired result.Note:Menu item 'General test information' can be called up for an explanation of the different CAN fault types.
1.1.1.2. General test information
Notes on CAN fault codes:CAN timeout fault
- A CAN timeout fault code is set due to the absence of a CAN input signal.The cause of this may be not only the transmitter control unit, but
also the CAN networking.
- For example:No CAN message was received from control unit A.
