AUDIO AND VISUAL SYSTEM Switch Lights of Remote Touch do not Illuminate

DESCRIPTION

Power is supplied to the remote touch illumination when the light control switch is in the tail or head position.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. CONFIRM SYMPTOMS

   
   
   1. 

      Text in Illustration

      *1	Switch Illumination

      Perform the following settings and check the switch illumination again.

      
      

      1. When the vehicle is in a bright area, move to a dark area.

         Tech Tips

         When the vehicle is in a bright area, the switch illumination may not turn on due to the automatic dimmer function.

      2. Set the rheostat to the maximum brightness.

         Tech Tips

         If the brightness of the rheostat is set to low, switch illumination may not be recognized even when the switch illumination turns on.

      3. If the light control switch is in the AUTO position, turn the switch to the tail or head position.

         Tech Tips

         If the light control switch is in the AUTO position, the switch illumination will not turn on unless the surrounding area is dark.

         OK
         Switch illumination turns on.

   
   

   NG

   REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK) Click here

   OK

   END

2. REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK)

   
   

   1. Activate self check mode Click here.

   2. 

      Text in Illustration

      *1	Switch Illumination
      *2	Switch Knob

      Check switch illumination.

      
      

      1. Move the remote operation switch knob from the lower left to the upper right to check that the brightness of the switch illumination changes.

         OK
         The switch illumination brightness changes according to the remote operation switch knob operation.

   
   

   NG

   CHECK REMOTE TOUCH (REMOTE OPERATION SWITCH) Click here

   OK

3. CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

   
   
   1. 

      Text in Illustration

      *a	Front view of wire harness connector (to Remote Touch [Remote Operation Board])

      Disconnect the remote touch connector.

   2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition L169-9 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

4. CHECK HARNESS AND CONNECTOR (REMOTE TOUCH - NO. 1 METER ECU SUB-ASSEMBLY)

   
   

   1. Disconnect the L169 remote touch connector.

   2. Disconnect the L124 No. 1 meter ECU sub-assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition L169-16 (ILL-) - L124-16 (ILL-) Always Below 1 Ω L169-16 (ILL-) - Body ground Always 10 kΩ or higher

   
   

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR

   OK

5. CHECK REMOTE TOUCH (REMOTE OPERATION BOARD)

   
   

   1. Temporarily replace the remote operation board Click here.

   2. Check if the switch illumination turns on.

      OK
      The switch illumination turns on when the light control switch is in the tail or head position.

   
   

   NG

   GO TO METER / GAUGE SYSTEM Click here

   OK

   END (REMOTE TOUCH [REMOTE OPERATION BOARD] IS DEFECTIVE)

6. CHECK REMOTE TOUCH (REMOTE OPERATION SWITCH)

   
   

   1. Temporarily replace the remote operation switch Click here.

   2. Check if the switch illumination turns on.

      OK
      The switch illumination turns on when the light control switch is in the tail or head position.

   
   

   NG

   REPLACE REMOTE TOUCH (REMOTE OPERATION BOARD) Click here

   OK

   END (REMOTE TOUCH [REMOTE OPERATION SWITCH] IS DEFECTIVE)