Description

ABS-signals via CAN implausible

Effects on the driving operation

No retarder operation

No ANS-function

Possible causes

The ABS-CAN signals sent on the CAN-bus are contradictory.

Using the CAN-SAE-J1939-protocol:

EBC1(Electronic brake controller #1) -CAN-message:

The CAN-signals ´ABS active´ and ´ABS fully operational´ must have both values unequal 0xFFFF.

This fault occurs if one of the two CAN-signals has the value 0xFFFF and the other signal a valid value or a fault ID.

Place of action

No description available.

Instruction

Check connector/cable of the CAN connection.

Check the external ABS-controller.

Using the CAN-SAE-J1939-protocol:

EBC1(Electronic brake controller #1) -Verify CAN-message.

Setting conditions of the event

No description available.

Testing conditions of the event

No description available.

Final function check

If the defective component cannot be clearly identified, you should try to reproduce the fault:

• Reinstall the component in the vehicle.
• Test function.

After the fault has been eliminated, the following steps have to be carried out:

• Conduct a test drive with function check.
• Read the fault memory
• Check transmission for leaks.
• Perform a final visual inspection.

These steps are necessary to ensure the entire vehicle functions correctly.