This instruction show you guide on how to solve CAN communication engine control unit error fault on Scania truck.
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Error identification
No message or incorrect message from the engine control unit.
Cause
Unreliable CAN communication, fault on the CAN bus or fault on the engine control unit.
Notes
The control unit uses pre-programmed values to control the compressor. Regeneration takes place after each load relief operation. Yellow warning lamp comes on.
Action
Check if fault codes 185 and 313 are active or have been active. If they have not been active a fault in the CAN communication to the APS unit can be ruled out.
Check and rectify any faults in the engine control unit.
Check the CAN network to the engine control unit.
Check the CAN network to the APS unit.
For more information about Scania truck,please refer to:Scania Trouble Repair.
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