ELECTRONICALLY CONTROLLED BRAKE SYSTEM > TS and CG Terminal Circuit

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DESCRIPTION

In Test Mode (signal check), a malfunction in a speed sensor that cannot be detected when the vehicle is stopped can be detected while driving.
Sensor check mode can be entered by connecting terminals TS and CG of the DLC3 and turning the power switch from off to on (IG).

WIRING DIAGRAM


C167369E30


INSPECTION PROCEDURE

NOTICE:
When replacing the brake booster with master cylinder (skid control ECU), perform initialization and calibration of the linear solenoid valve (Click here).

1.CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - TS of DLC3)

  1. Disconnect the skid control ECU connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A61-4 (TS) - H44-12 (TS)
    		Always
    		Below 1 Ω
    A61-4 (TS) - Body ground
    		Always
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2.CHECK HARNESS AND CONNECTOR (CG of DLC3 - BODY GROUND)


    C207407E16

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    H44-4 (CG) - Body ground
    		Always
    		Below 1 Ω

    Text in Illustration 
    *a
    		Front view of DLC3

    Result:

    Result
    		Proceed to
    OK (for LHD)
    		A
    OK (for RHD)
    		B
    NG
    		C

    HINT:
    If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing the part (Click here).



B
REPLACE BRAKE BOOSTER WITH MASTER CYLINDER (Click here)

C
REPAIR OR REPLACE HARNESS OR CONNECTOR
A

REPLACE BRAKE BOOSTER WITH MASTER CYLINDER (Click here)