Malfunction Codes For Faulty Actuator Power Relay - Hino Motors HINO 155 series Workshop Manual

MALFUNCTION CODES FOR FAULTY ACTUATOR POWER RELAY

Since the following actuators and switches are connected in the downstream of the actuator power relay, more than one
malfunction code or functional failure can occur.
Check the supply circuit from the actuator power relay.
Sensor
Brake switch
EGR actuator
VNT actuator
DPR regeneration switch
Exhaust brake
Cruise
Aftertreatment fuel injector
ENGINE (J05E)/TROUBLESHOOTING
P0504
U1122
U1123
Manual regeneration failure of DPR
Functional failure
P20CD
Case
2–93
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