No or Incorrect CAN Message From Control Unit ESP

No or Incorrect CAN Message From Control Unit ESP

Check CAN Bus. (General)

If several fault codes regarding CAN communication have occurred, the following causes of the fault are likely
- Open circuit in voltage supply to the control modules involved
- Short circuit or open circuit of CAN wires
- Connector sleeves of the CAN bus

If CAN communication between control module ME-SFI 2.0 and at least one other control module is fault-free, there is no fault at the CAN element of the control module ME-SFI 2.0.In this case proceed as follows:
- Read fault memory of control module to which there is a fault in the communication.If a CAN fault regarding communication with control module ME-SFI 2.0 is present in this control module, then first of all test CAN lines between the two control modules.

** End of Test **