Kubota 07-CR-E5 - EEPROM Check Sum Error (DTC P1990; 523700-13)

COMMON RAIL SYSTEM
07-CR-E5,07-CR-TE5,07-CR-TIE5, DM
1-S239
(36) EEPROM Check Sum Error (DTC P1990 / 523700-13)
Behaviour during malfunction:
•None
Detection item:
• KBT-EEPROM check sum error
DTC set preconditions:
• Battery voltage is normal
DTC set parameter:
• EEPROM check sum error
Engine warning light:
•ON
Limp home action by engine ECU (system action):
•None
Recovery from error:
• Key switch turn OFF
9Y3200007CRS0369US0
1. Check the DTC
1. Place the key switch in the OFF position, attach the diagnosis
tool to the CAN1 connector, and return the key switch to the ON
position again.
2. Clear the DTC, and check whether the same DTC is output
again or not.
9Y3200007CRS0372US0
2. Write the Trim Data and Read the DTC Again
1. Using the diagnosis tool, write the correct trim data in the engine
ECU.
2. Clear the DTC and check whether the same DTC is output
again or not.
9Y3200007CRS0373US0
Service
specification
No DTC is output.
OK An electromagnetic interference (EMI) may have caused the temporary
malfunction. There is no problem if the system has recovered.
NG Go to "2. Write the Trim Data and Read the DTC Again".
(a) CAN1 Connector
Service
specification
No DTC is output.
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