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13-49
P1568: Sensor Supply Voltage 2 (warning lamp flashes: 81)
P1572: Sensor Supply Voltage 3 (warning lamp flashes: 81)
P1573: Sensor Supply Voltage 3 (warning lamp flashes: 81)
P1605: ECU System (EEPROM) (warning lamp flashes: 33)
P1606: ECU System (Software) (warning lamp flashes: 33)
Generation condition
Circuit voltage (sensor supply voltage 2) in electronic control unit remains abnor-
mally high for 0.5 second.
Recoverability
System recovers when circuit voltage (sensor supply voltage 2) in electronic con-
trol unit becomes normal.
Control effected by electronic control unit No specific control is effected. Failure occurs only to circuit abnormality.
Inspection
Service data 25: Accel Pedal Sensor Voltage 2, 26: Boost Pressure
Electronic control unit connector : Accelerator pedal position sensor 2
Electrical equipment #318: Boost pressure sensor, #324: Accelerator pedal position sensor 2
Electric circuit diagram Boost pressure sensor and accelerator pedal position sensor 2 systems
Generation condition
Circuit voltage (sensor supply voltage 3) in electronic control unit remains abnor-
mally low for 0.5 second.
Recoverability
System recovers when circuit voltage (sensor supply voltage 3) in electronic con-
trol unit becomes normal.
Control effected by electronic control unit No specific control is effected. Failure occurs only to circuit abnormality.
Inspection
Service data 0C: Difference Common Rail Pressure, 35: PTO Accel Sensor Voltage
Electronic control unit connector : Power take-off load sensor
Electrical equipment #317: Power take-off load sensor, #319: Common rail pressure sensor
Electric circuit diagram Power take-off load sensor and common rail pressure sensor systems
Generation condition
Circuit voltage (sensor supply voltage 3) in electronic control unit remains abnor-
mally high for 0.5 second.
Recoverability
System recovers when circuit voltage (sensor supply voltage 3) in electronic con-
trol unit becomes normal.
Control effected by electronic control unit No specific control is effected. Failure occurs only to circuit abnormality.
Inspection
Service data 0C: Difference Common Rail Pressure, 35: PTO Accel Sensor Voltage
Electronic control unit connector : Power take-off load sensor
Electrical equipment #317: Power take-off load sensor, #319: Common rail pressure sensor
Electric circuit diagram Power take-off load sensor and common rail pressure sensor systems
Generation condition Reading or writing error occurs during access.
Recoverability
System recovers (power is re-supplied to electronic control unit) if signal becomes
normal when starter switch is turned OFF → ON.
Control effected by electronic control unit No specific control is effected. Failure occurs only to circuit abnormality.
Inspection Other Replace engine electronic control unit.
Generation condition
Diagnosis code is generated under either of the following conditions.
• System overload occurs.
• Data processing time of engine electronic control unit has exceeded time-out
period (0.0655 second).
Recoverability
System recovers (power is re-supplied to electronic control unit) if signal becomes
normal when starter switch is turned OFF (2 minutes or more) → ON.
Control effected by electronic control unit Engine is stopped.
Inspection Other Replace engine electronic control unit.
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