6279
UnclassifiedFuel
What This Code Means
Current consumption exceeds the DSE unit’s output specification; Fuel Relay Output not functioning for CAN ECU Power; CANbus communication interference or failure; CAN control non-functional; Current consumption exceeds DSE unit output specification; Fuel Relay Output failure; CANbus communication errors
Possible Causes
- •High current draw from engine starter solenoid
- •High current draw from fuel relay
- •Fuel Relay Output not configured correctly on applicable modules
- •Incorrect cable impedance
- •Improper screen/shield grounding
- •Deutz ECU parameter 4400 not enabled
- •Direct connection to high-draw component (Fuel Relay or Start Relay)
- •Incorrect module configuration
- •Unscreened cable
- •Incorrect screen grounding
Suggested Actions
- 1Use an external slave relay
- 2Check that current consumption does not exceed the DSE unit’s output specification
- 3Configure the Fuel Relay Output to CAN ECU Power
- 4Use only screened 120 Ω impedance cable approved specifically for use in CANbus applications
- 5Connect the CANbus screen at one end only
- 6Using the Deutz service tool software, change parameter 4400 on Page 6 to ‘1’
- 7Install an external slave relay
- 8Check current consumption against DSE unit output specification
- 9Use only screened 120 Ω impedance cable approved for CANbus applications
- 10Connect CANbus cable screen at one end only
Related Deep Sea Electronics Fault Codes
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