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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

RECONFIRM DTC

DTC C1225 SM Solenoid Circuit

DTC C1226 SA2 Solenoid Circuit

DTC C1227 SA3 Solenoid Circuit

DTC C1228 STR Solenoid Circuit

DTC C1468 SFR Solenoid Circuit

DTC C1469 SFL Solenoid Circuit

DTC C146A SRR Solenoid Circuit

DTC C146B SRL Solenoid Circuit

DESCRIPTION

The solenoid turns on when signals are received from the skid control ECU (master cylinder solenoid) and controls the pressure acting on the wheel cylinders, thus controlling braking force.

DTC CodeDTC Detection ConditionTrouble Area
C1225An open or short circuit in the SMCF circuit continues for 0.05 seconds or more.
SMCF circuit
Master cylinder solenoid
C1226An open or short circuit in the SREA circuit continues for 0.05 seconds or more.
SREA circuit
Master cylinder solenoid
C1227An open or short circuit in the SREC circuit continues for 0.05 seconds or more.
SREC circuit
Master cylinder solenoid
C1228An open or short circuit in the STR circuit continues for 0.05 seconds or more.
STR circuit
Master cylinder solenoid
C1468An open or short circuit in the SFRH or SFRR circuit continues for 0.05 seconds or more.
SFRH or SFRR circuit
Master cylinder solenoid
C1469An open or short circuit in the SFLH or SFLR circuit continues for 0.05 seconds or more.
SFLH or SFLR circuit
Master cylinder solenoid
C146AAn open or short circuit in the SRRH or SRRR circuit continues for 0.05 seconds or more.
SRRH or SRRR circuit
Master cylinder solenoid
C146BAn open or short circuit in the SRLH or SRLR circuit continues for 0.05 seconds or more.
SRLH or SRLR circuit
Master cylinder solenoid

WIRING DIAGRAM

Dtc C1225  Sm Solenoid Circuit. BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS. Land Cruiser URJ200  URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

  • NOTICE:
  • After replacing the master cylinder solenoid, perform zero point calibration ().
1.RECONFIRM DTC
  • HINT:
  • These codes are stored when a problem is detected in the master cylinder solenoid.
  • The solenoid circuit is in the master cylinder solenoid.
  • Therefore, solenoid circuit inspections and solenoid unit inspections cannot be performed. Be sure to check if any DTC is output before replacing the master cylinder solenoid.

Clear the DTCs ().

Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.

Check if the same DTCs are output ().

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 ()