Dtc C120A Ecu Initial Setting Incomplete

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS

DESCRIPTION

INSPECTION PROCEDURE

PERFORM CALIBRATION

CHECK DTC

DTC C120A ECU Initial Setting Incomplete

DESCRIPTION

After replacing the skid control ECU (master cylinder solenoid) or clearing the system information stored in the skid control ECU (master cylinder solenoid), the system information must be stored in the skid control ECU (master cylinder solenoid) again. The system information is automatically stored in the skid control ECU (master cylinder solenoid) when the system enters test mode. If the system information is not stored in the skid control ECU (master cylinder solenoid), DTC C120A is stored.

DTC CodeDTC Detection ConditionTrouble Area
C120AThe system information is not stored in the skid control ECU.
Calibration not performed
Skid control ECU (Master cylinder solenoid)

INSPECTION PROCEDURE

  • NOTICE:
  • After replacing the master cylinder solenoid, perform zero point calibration and store the system information ().
1.PERFORM CALIBRATION

Perform calibration ().

  • NOTICE:
  • If a DTC is output after replacing the master cylinder solenoid, it is possible that calibration has not been performed or the zero point calibration data was not cleared when calibration was performed.
NEXT
2.CHECK DTC

Check for DTCs ().

Result
ResultProceed to
DTC is not outputA
DTC is output (for LHD)B
DTC is output (for RHD)C
B
REPLACE MASTER CYLINDER SOLENOID ()
C
REPLACE MASTER CYLINDER SOLENOID ()
A
CHECK FOR INTERMITTENT PROBLEMS ()