Indicator Circuit

CRUISE CONTROL: LANE-KEEPING ASSIST SYSTEM: Indicator Circuit
- Indicator Circuit

DESCRIPTION

* When the driving support ECU detects a lane-keeping assist main switch signal, it sends the signal to the combination meter via CAN communication. Then the LKA indicator light turns on.

* The LKA indicator light circuit uses CAN communication. If there is a malfunction in this circuit, check for DTCs in the CAN communication system before troubleshooting this circuit.

INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (LKA INDICATOR LIGHT)

(a) Select the Active Test, use the Techstream to generate a control command, and then check that the LKA indicator light illuminates.

Combination Meter





OK:

LKA indicator light turns on / turns off.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM (LKA INDICATOR LIGHT)

(a) Using the Techstream, enter the following menus: All ECUs / Lane Keeping Assist / Data List / LKA Indicator.

(b) Check the Data List for proper functioning of the LKA indicator light.

Lane Keeping Assist





OK:

LKA indicator light turns on / turns off.

NG -- REPLACE DRIVING SUPPORT ECU Removal

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Symptom Related Diagnostic Procedures