LANE-KEEPING ASSIST SYSTEM Indicator Circuit

DESCRIPTION

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

PROCEDURE

1. READ VALUE USING INTELLIGENT TESTER (LKA INDICATOR LIGHT)

   
   

   1. Use the Data List to check if the LKA indicator light is functioning properly.

      Lane Keep

      Tester Display	Test Details	Normal Condition	Diagnostic Note
      LKA Indicator	LKA indicator light signal / ON or OFF	ON: LKA indicator light on OFF: LKA indicator light off	-

      OK
      On screen, item changes between ON and OFF according to above chart.

   
   

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

   NG

2. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (LKA INDICATOR LIGHT)

   
   

   1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the LKA indicator light illuminates.

      Combination Meter

      Tester Display	Test Part	Control Range	Diagnostic Note
      Drift From The Lane	LKA indicator light	ON/OFF	-

      OK
      LKA indicator light turns on/off.

      Result

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

   
   

   A

   REPLACE DRIVING SUPPORT ECU Click here

   B

   REPLACE DRIVING SUPPORT ECU Click here

   C

   GO TO METER / GAUGE SYSTEM Click here