Downhill Assist Control Indicator Light does not Come ON

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: Downhill Assist Control Indicator Light does not Come ON
- Downhill Assist Control Indicator Light does not Come ON

DESCRIPTION

Refer to the description of "Downhill Assist Control Indicator Light Remains ON" Downhill Assist Control Indicator Light Remains ON.

WIRING DIAGRAM

Refer to the downhill assist control indicator light circuit Downhill Assist Control Indicator Light Remains ON.

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration Component Tests and General Diagnostics.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if a CAN communication system DTC is output How to Proceed With Troubleshooting

Result:





B -- REPAIR CAN COMMUNICATION SYSTEM CAN Communication System
A -- Continue to next step.

2. READ VALUE USING TECHSTREAM (DOWNHILL ASSIST CONTROL SWITCH)

(a) Check the Data List for proper functioning of the downhill assist control switch.

ABS/VSC/TRAC:





OK:

ON (downhill assist control switch is on) appears on the screen.

NG -- INSPECT DOWNHILL ASSIST CONTROL SWITCH
OK -- Continue to next step.

3. PERFORM ACTIVE TEST USING TECHSTREAM (DOWNHILL ASSIST CONTROL INDICATOR LIGHT)

(a) Connect the Techstream to the DLC3.

(b) Start the engine.

(c) Select the Active Test mode on the Techstream Data List / Active Test.

ABS/VSC/TRAC:





OK:

The downhill assist control indicator light turns ON and OFF.

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal
NG -- Continue to next step.

4. INSPECT COMBINATION METER ASSEMBLY

(a) Inspect the combination meter How To Proceed With Troubleshooting.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal

OK -- REPLACE BRAKE ACTUATOR ASSEMBLY Removal

5. INSPECT DOWNHILL ASSIST CONTROL SWITCH

(a) Remove the downhill assist control switch Removal.





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

Standard Resistance:





NG -- REPLACE DOWNHILL ASSIST CONTROL SWITCH
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (DOWNHILL ASSIST CONTROL SW - SKID CONTROL ECU/BODY GROUND)

(a) Disconnect the skid control ECU connector.





(b) Disconnect the downhill assist control 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