Case IH 2479 (92.19) - DEC – DEC (Diesel Engine Control): CAN 1 - EngPercentLoadAtCurrentSpeed Error
Issue description
A Controller Area Network (CAN) communication error regarding the engine's load. It indicates a malfunction or invalid data transmission on the CAN 1 bus regarding the instant engine load parameter (SPN 92).
Applies to these machines
4 machines- MAXXUM T4E
- VESTRUM CVX
- Magnum series (Tier 4 235-380 Series)
- 7230 Combines
Check the cause
Inspect the CAN bus wiring and connectors (such as the Deutsch HD10-9-1939 diagnostic connectors) for damage, corrosion, or loose pins.
Verify the data transmission of the EEC2 (Engine management) frame on the CAN bus to ensure the DEC is communicating properly with other modules.
Repair steps
Repair
Repair damaged CAN wiring harnesses.
Replace
Replace faulty connectors.
Update/Replace
Update or replace the Diesel Engine Control module if it is failing to process or transmit the torque and load data correctly.
Parts you might need
(3)CAN bus wiring harness / pigtails
Deutsch HD10-9-1939 connectors
Diesel Engine Control Unit (DEC / ECU)
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