COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S312
(70) 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
Limp home action by engine ECU (system action):
• Forced Idle (Accelerator = 0 %)
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0494US0
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.
9Y3200007CRS0495US0
(a) Machine ECU (b) Engine ECU (c) Engine ECU Connector 2
(Machine Side)
A: To Other ECU
Service
specification
DTC (U0075) must not be output.
OK Normal.
NG Go to "2. Check the Wiring Related to the CAN of the Common Rail
System".
(a) CAN1 Connector