E2031

No or incorrect CAN message from control unit BCM


Possible cause:

- Check the CAN communication with control unit N82/1 (Vehicle power supply control module).
- Chassis CAN bus
Affected functions:

- CAN Communication

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Test 1: Check communication with component CGW

Test 2: Chassis CAN bus

Test 3: Check the CAN communication with control unit BNS.

1. Check communication with component CGW
Warning!Communication with ECU required.


2. Chassis CAN bus
Warning!Communication with ECU required.

3. Check the CAN communication with control unit BNS.
Warning!Communication with ECU required.