CAN
|  | Description
|  | See also:
Description
Code | Fault type
1 | CAN communication error
3 | CAN hardware E200 defective
4 | Invalid CAN protocol (data record)
5 | Timeout engine reference torque
A fault occurred during CAN communication. There are two possible reasons for this fault: Transmission errors have occurred on the CAN bus (e.g. short-circuit). A connected device does not respond.
Fault type | Troubleshooting
CAN bus hardware fault | Check the CAN bus line: Terminating resistors (together approx. 60 Ω) missing? (series connection of 2x 120Ω = measured 60 Ω) Short-circuit between CAN-L and CAN-H? Short-circuit of CAN-L to supply voltage? Short-circuit of CAN-H to ground or supply voltage? CAN-H or CAN-L line interrupted? CAN-H swapped with CAN-L line?
Timeout caused by the engine control unit | It must be ensured that the engine control unit supports communication to SAE-J1939 via CAN bus. Does the engine control unit report any faults?
CAN module is not installed | In this case, the transmission control unit is not suited for CAN communication: Use a control unit with a CAN module or use the correct data record.
No valid CAN protocol set in the data record. | Replace data record
See also:
|  | Aftersales service
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