Can2 Bus Off (Dtc U0075 / 523547-2) - Kubota V3800-CR-TE4 Diagnosis Manual

V3800-CR-TE4,V3800-CR-TIE4, DM

(57) CAN2 Bus Off (DTC U0075 / 523547-2)

Behaviour during malfunction:
• Insufficient output
• Transmitted data is invalid
Detection item:
• CAN2 +B/GND open circuit or high traffic error
DTC set preconditions:
• Battery voltage is normal
• Key switch is ON
DTC set parameter:
• CAN2 Bus off
Engine warning light:
• ON
System action:
• Forced Idle (Accelerator = 0 %)
Recovery from error:
• Key switch turn OFF
(a) ECU for Machine (b) Engine ECU
1. DTC Judgment
1. Place the key switch in the OFF position, and attach the
diagnosis tool to the CAN1 connector.
2. Place the key switch in the ON position, check whether the DTC
(U0075) is output or not.
Factory
specification
OK
NG
(a) CAN1 Connector
1-S278
(c) ECU Connector 2
(B: 58 Pin)
DTC (U0075) must not be output.
Normal.
Go to "2. Check the Wiring Related to the CAN of the Common Rail
System".
COMMON RAIL SYSTEM
A: To Other ECU
9Y1200192CRS0831US0
9Y1200192CRS0556US0
KiSC issued 05, 2012 A