LIGHTING SYSTEM Headlight Dimmer Switch Circuit

DESCRIPTION

The turn signal flasher receives a turn signal light information signal from the headlight dimmer switch.

WIRING DIAGRAM

PROCEDURE

1. INSPECT HEADLIGHT DIMMER SWITCH (TURN SIGNAL SWITCH)

   
   
   1. 

      for LH Side

      *1	Component without harness connected: (Headlight Dimmer Switch Assembly)

      Remove the headlight dimmer switch Click here.

   2. for LH Side:

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 13 (TR) - 12 (EL) Turn signal switch right turn Below 1 Ω Turn signal switch off 10 kΩ or higher 15 (TL) - 12 (EL) Turn signal switch left turn Below 1 Ω Turn signal switch off 10 kΩ or higher

   3. 

      for RH Side

      *1	Component without harness connected: (Headlight Dimmer Switch Assembly)

      for RH Side:

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition 16 (TR) - 19 (EL) Turn signal switch right turn Below 1 Ω Turn signal switch off 10 kΩ or higher 18 (TL) - 19 (EL) Turn signal switch left turn Below 1 Ω Turn signal switch off 10 kΩ or higher

   
   

   NG

   REPLACE HEADLIGHT DIMMER SWITCH Click here

   OK

2. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH - TURN SIGNAL FLASHER AND BODY GROUND)

   
   

   1. 

      Disconnect the E14 switch connector.

   2. Disconnect the E19 relay connector.

   3. for LH Side:

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

      Standard Resistance
      Tester Connection Condition Specified Condition E14-13 (TR) - E19-6 (ER) Always Below 1 Ω E14-15 (TL) - E19-5 (EL) E14-12 (EL) - Body ground E14-13 (TR) - Body ground Always 10 kΩ or higher E14-15 (TL) - Body ground

   4. 

      *1	Front view of wire harness connector: (to Headlight Dimmer Switch Assembly)
      *2	Front view of wire harness connector: (to Turn Signal Flasher Assembly)

      for RH Side:

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

      Standard Resistance
      Tester Connection Condition Specified Condition E14-16 (TR) - E19-6 (ER) Always Below 1 Ω E14-18 (TL) - E19-5 (EL) E14-19 (EL) - Body ground E14-16 (TR) - Body ground Always 10 kΩ or higher E14-18 (TL) - Body ground

      Result

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

   
   

   A

   REPLACE TURN SIGNAL FLASHER ASSEMBLY Click here

   B

   REPLACE TURN SIGNAL FLASHER ASSEMBLY Click here

   C

   REPAIR OR REPLACE HARNESS OR CONNECTOR