LIGHTING SYSTEM Turn Signal Switch Circuit

DESCRIPTION

WIRING DIAGRAM

PROCEDURE

1. READ VALUE USING GTS

   1. Connect the GTS to the DLC3.

   2. Turn the ignition switch to ON.

   3. Turn the GTS on.

   4. Enter the following menus: Body Electrical / Combination Meter / Data List.

   5. Read the display on the GTS.

      Body Electrical > Combination Meter > Data List

      Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
      Turn Signal Switch (Right)	Turn signal switch in right turn position signal	ON or OFF	ON: Turn signal switch in right turn position ON: Turn signal switch in right turn position	-
      Turn Signal Switch (Left)	Turn signal switch in left turn position signal	ON or OFF	ON: Turn signal switch in left turn position OFF: Turn signal switch not in left turn position	-
      Turn Switch Signal (Full Turn)	Turn signal switch in full turn position signal	ON or OFF	ON: Turn signal switch in full left turn or full right turn position OFF: Turn signal switch in neither full left turn nor full right turn position	-

      Body Electrical > Combination Meter > Data List

      Tester Display
      Turn Signal Switch (Right)
      Turn Signal Switch (Left)
      Turn Switch Signal (Full Turn)

      OK

      Normal conditions listed above are displayed.

   Result

   Proceed to
   OK
   NG

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

   Click hereClick hereClick here

   NG

2. INSPECT HEADLIGHT DIMMER SWITCH ASSEMBLY

   1. Remove the headlight dimmer switch assembly.

      Click here

   2. 

      *a	Component without harness connected (Headlight Dimmer Switch Assembly)

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      13 (TR) - 12 (EL)	Turn signal switch in neutral position	10 kΩ or higher
      15 (TL) - 12 (EL)		10 kΩ or higher
      14 (CR) - 12 (EL)		10 kΩ or higher
      13 (TR) - 15 (TL)		10 kΩ or higher
      14 (CR) - 15 (TL)		10 kΩ or higher
      13 (TR) - 14 (CR)		10 kΩ or higher
      13 (TR) - 12 (EL)	Turn signal switch in right turn position	Below 1 Ω
      13 (TR) - 12 (EL)	Turn signal switch in full right turn position	Below 1 Ω
      14 (CR) - 12 (EL)		Below 1 Ω
      13 (TR) - 14 (CR)		Below 1 Ω
      15 (TL) - 12 (EL)	Turn signal switch in left turn position	Below 1 Ω
      15 (TL) - 12 (EL)	Turn signal switch in full left turn position	Below 1 Ω
      14 (CR) - 12 (EL)		Below 1 Ω
      15 (TL) - 14 (CR)		Below 1 Ω

   Result

   Proceed to
   OK
   NG

   NG

   REPLACE HEADLIGHT DIMMER SWITCH ASSEMBLY

   Click here

   OK

3. CHECK HARNESS AND CONNECTOR (HEADLIGHT DIMMER SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY OR BODY GROUND)

   1. Disconnect the E12 combination meter assembly connector.

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

      Standard Resistance

      Tester Connection	Condition	Specified Condition
      E14-13 (TR) - E12-3 (ER)	Always	Below 1 Ω
      E14-15 (TL) - E12-2 (EL)	Always	Below 1 Ω
      E14-14 (CR) - E12-30 (SW)	Always	Below 1 Ω
      E14-13 (TR) - Body ground	Always	10 kΩ or higher
      E14-15 (TL) - Body ground	Always	10 kΩ or higher
      E14-14 (CR) - Body ground	Always	10 kΩ or higher
      E14-12 (EL) - Body ground	Always	Below 1 Ω

   Result

   Proceed to
   OK
   NG

   OK

   PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

   Click hereClick hereClick here

   NG

   REPAIR OR REPLACE HARNESS OR CONNECTOR