AUTO LSD Indicator Light Remains ON

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster): AUTO LSD Indicator Light Remains ON
- AUTO LSD Indicator Light Remains ON

DESCRIPTION

For 2WD vehicles and 4WD vehicles in H2 mode, the AUTO LSD will operate with the VSC OFF switch on (approximately 1 second) or the vehicle is stopped and the VSC OFF switch is pressed for 3 seconds or more, the AUTO LSD function is activated and the AUTO LSD indicator light illuminates.

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration Vehicle Stability Control System (for Vacuum Brake Booster).

PROCEDURE

1. CHECK DTC

(a) Check if the same DTC(s) is output Vehicle Stability Control System (for Vacuum Brake Booster).

Result





B -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS Vehicle Stability Control System (for Vacuum Brake Booster)
A -- Continue to next step.

2. PERFORM ACTIVE TEST USING TECHSTREAM (AUTO LSD INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(c) Turn the Techstream ON.

(d) Select the Active Test mode and operate the AUTO LSD indicator light using the Techstream.

ABS/VSC/TRAC





(e) Check that the AUTO LSD indicator light turns ON and OFF in the combination meter when using the Techstream.

OK:

The AUTO LSD indicator light turns on and off in accordance with the Techstream operation.

HINT
When the AUTO LSD indicator light remains illuminated, there may be an open in the wire harness of the combination meter or abnormalities in the meter circuit.

NG -- GO TO METER / GAUGE SYSTEM How To Proceed With Troubleshooting
OK -- Continue to next step.

3. INSPECT VSC OFF SWITCH

(a) Remove the VSC OFF switch Removal.





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

Standard resistance:





NG -- REPLACE VSC OFF SWITCH Removal
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (SKID CONTROL ECU - VSC OFF SWITCH)

(a) Disconnect the skid control ECU connector.





(b) Disconnect the VSC OFF switch connector.

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

Standard resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal