NAVIGATION SYSTEM (for HDD) 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.

INSPECTION PROCEDURE

PROCEDURE

1. Click here

   CONFIRM SYMPTOMS

   
   
   1. 

      Perform the following settings and check the switch illumination again.

      
      

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

         Tip:

         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.

         Tip:

         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.

         Tip:

         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.

      Table 1. Text in Illustration

      *a	Switch Illumination

   
   
   • OKClick here
   • NGClick here
2. Click here

   END

3. Click here

   REMOTE TOUCH SELF CHECK (SWITCH ILLUMINATION CHECK)

   
   

   1. Activate self check mode (Click here).

   2. 

      Check switch illumination.

      
      

      1. Move the remote touch 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 touch switch knob operation.

      Table 2. Text in Illustration

      *a	Switch Illumination
      *b	Switch Knob

   
   
   • OKClick here
   • NGClick here
4. Click here

   CHECK HARNESS AND CONNECTOR (ILLUMINATION SIGNAL)

   
   

   1. Disconnect the H70 remote touch connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition H70-6 (ILL+) - Body ground Light control switch in the tail or head position 11 to 14 V

   
   
   • OKClick here
   • NGClick here
5. Click here

   CHECK HARNESS AND CONNECTOR

   
   

   1. Disconnect the H70 remote touch connector.

   2. Disconnect the H19 combination meter assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition H70-4 (ILL-) - H19-10 (ILL-) Always Below 1 Ω H70-4 (ILL-) - Body ground Always 10 kΩ or higher

   
   
   • OKClick here
   • NGClick here
6. Click here

   REPLACE REMOTE OPERATION BOARD

   
   

   1. 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.

   
   
   • OKClick here
   • NGClick here
7. Click here

   END

8. Click here

   REPLACE INTEGRATION PANEL SUB-ASSEMBLY

   
   

   1. Replace the integration panel sub-assembly (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.

   
   
   • OKClick here
   • NGClick here
9. Click here

   END

10. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

11. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

12. Click here

    GO TO METER / GAUGE SYSTEMClick here

13. Click here

    REPLACE REMOTE OPERATION BOARDClick here