Dtc C146E Open In Abs Solenoid Relay Circuit

Brake. Land Cruiser. Urj200, 202 Grj200 Vdj200
Brake Control Dynamic Control Systems. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (+BS TERMINAL)

CHECK HARNESS AND CONNECTOR (GND1, GND2 AND GND3 TERMINAL)

RECONFIRM DTC

DTC C146E Open in ABS Solenoid Relay Circuit

DTC C146F Short in ABS Solenoid Relay Circuit


DESCRIPTION

The solenoid relay is built into the master cylinder solenoid.
This relay supplies power to each solenoid. If the initial check is OK, after the ignition switch is turned to ON, the relay turns on.

DTC Code
DTC Detection Condition
Trouble Area
C146E
Either condition is met:
  1. Both of the following conditions continue for at least 0.2 seconds.
    1. IG voltage is between 9.5 and 17 V.
    2. The relay contact is open when the relay is on.
  2. Both of the following conditions continue for at least 0.2 seconds.
    1. IG voltage is 9.5 V or less when the relay is on.
    2. The relay contact remains open.
  1. ABS NO. 2 fuse
  2. Solenoid relay circuit
  3. Master cylinder solenoid
C146F
The following condition continues for at least 0.2 seconds.
  1. The relay contact is closed immediately after turning the ignition switch ON when the relay is off.

WIRING DIAGRAM

Refer to DTCs C1225, C1226, C1227, C1228, C1468, C1469, C146A and C146B (Click here).

INSPECTION PROCEDURE

NOTICE:
  1. After replacing the master cylinder solenoid, perform zero point calibration and store the system information (Click here).
  2. Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (+BS TERMINAL)

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (master cylinder solenoid) connector.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C146E Open In Abs Solenoid Relay Circuit

  1. Measure the voltage according to the value(s) in the table below.

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    A24-31 (+BS) - Body ground
    		Always
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU [Master Cylinder Solenoid])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (GND1, GND2 AND GND3 TERMINAL)
Land Cruiser. Urj200, 202 Grj200 Vdj200.Brake Control Dynamic Control Systems.Anti-Lock Brake System. Dtc C146E Open In Abs Solenoid Relay Circuit

  1. Turn the ignition switch off.

  1. Disconnect the skid control ECU (master cylinder solenoid) connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A24-1 (GND1) - Body ground
    		Always
    		Below 1 Ω
    A24-32 (GND2) - Body ground
    		Always
    		Below 1 Ω
    A25-4 (GND3) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Skid Control ECU [Master Cylinder Solenoid])


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.RECONFIRM DTC
HINT:
These codes are stored when a problem is detected in the master cylinder solenoid.
The solenoid relay is in the master cylinder solenoid.
Therefore, solenoid relay circuit inspections and relay unit inspections cannot be performed. Be sure to check if any DTC is output before replacing the master cylinder solenoid.

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

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

  1. Check if the same DTCs are output (Click here).

    HINT:
    Reinstall the sensors, connectors, etc. and restore the previous vehicle conditions before rechecking for DTCs.

    Result
    Result
    		Proceed to
    DTC is not output
    		A
    DTC is output (for LHD)
    		B
    DTC is output (for RHD)
    		C


B
REPLACE MASTER CYLINDER SOLENOID (Click here)

C
REPLACE MASTER CYLINDER SOLENOID (Click here)
A

CHECK FOR INTERMITTENT PROBLEMS (Click here)