ENGINE (J05E)/TROUBLESHOOTING
2–42
NOTICE
• It is necessary to reset the ECU default value using the diagnosis tool at the time of supply pump service
replacement. In addition, the ECU has a function enabling it to learn the performance of the supply pump at the
time of ECU service replacement, so ensure sufficient time (several minutes) is available.
• When an injector is newly installed in a vehicle, it is necessary to enter the ID codes in the engine ECU using
the Diagnostic tool.
Engine ECU CAN communica-
tion
(DeNOx ECU)
Engine ECU CAN communica-
tion
(NOx sensor (SCR upstream))
Engine ECU CAN communica-
tion
(NOx sensor (SCR downstream))
Engine ECU CAN communica-
tion
(DEF tank sensor)
Software Incompatibility With
DeNOx ECU
Engine ECU CAN communica-
tion bus for Vehicle control - bus
off
Engine ECU CAN communica-
tion
(Vehicle ECU)
DIAGNOSTIC TROUBLE CODE (DTC) TABLE
MIL
SVS
Light
DTC
No.
DIAGNOSIS ITEM
INSPECTION ITEM
SYMPTOM