Kubota 07-CR-E5 - QR Data Abnormality (DTC P0602; 523538-2, P0602; 523538-7)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S218
(28) QR Data Abnormality (DTC P0602 / 523538-2, P0602 / 523538-7)
P0602 / 523538-2: QR data error
Behaviour during malfunction:
• Insufficient output
Detection item:
• QR data read error
DTC set preconditions:
• Key switch is ON
DTC set parameter:
• QR data read error from EEPROM
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Nozzle calibration is not executed
• Output limitation: Approximately 75 % of normal condition
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0325US0
P0602 / 523538-7: No QR data
Behaviour during malfunction:
• Insufficient output
Detection item:
• QR data is unwritten
DTC set preconditions:
• Key switch is ON
DTC set parameter:
• Area of QR data on EEPROM is vacant
Engine warning light:
•ON
Limp home action by engine ECU (system action):
• Nozzle correction factor = 0 [default value]
• Output limitation: Approximately 75 % of normal condition
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0326US0
1. Write the QR Codes and Read the DTC Again
1. Using the diagnosis tool, write the correct QR codes in the
engine ECU.
2. Clear the DTC and check whether the same DTC is output
again or not.
9Y3200007CRS0327US0
Service
specification
OK
OK An electromagnetic interference (EMI) may have caused the temporary
malfunction. There is no problem if the system has recovered.
NG Faulty engine ECU → Replace.
(a) CAN1 Connector
KiSC issued 03, 2022 A