Lighting System Hazard Warning Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY

CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - TURN SIGNAL FLASHER ASSEMBLY AND BODY GROUND)

LIGHTING SYSTEM - Hazard Warning Switch Circuit


DESCRIPTION

The turn signal flasher receives a hazard warning signal switch information signal and illuminates the turn signal lights.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Ext).Lighting System.Lighting System Hazard Warning Switch Circuit


INSPECTION PROCEDURE

1.INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155
Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155

  1. w/ Display

    1. Remove the hazard warning signal switch (LandCruiser RM000003QJX01KX.html).

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

      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      1 - 4
      		Hazard warning signal switch on
      		Below 1 Ω
      Hazard warning signal switch off
      		10 kΩ or higher

  1. w/o Display

    1. Remove the hazard warning signal switch (LandCruiser RM000003QJX01KX.html).

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

      Standard Resistance:
      Tester Connection
      		Switch Condition
      		Specified Condition
      16 - 3
      		Hazard warning signal switch on
      		Below 1 Ω
      Hazard warning signal switch off
      		10 kΩ or higher


NG
REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY (LandCruiser RM000003QJX01KX.html)
OK


2.CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - TURN SIGNAL FLASHER ASSEMBLY AND BODY GROUND)
  1. *1: w/ Navigation System
  2. *2: w/o Navigation System

  1. Disconnect the y1*1 or G160*2 hazard warning signal switch connector.

  1. Disconnect the G8 turn signal flasher connector.

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

    Standard Resistance:
    w/ Navigation System :
    Tester Connection
    		Condition
    		Specified Condition
    y1- 4 - 8 (HAZ)
    		Always
    		Below 1 Ω
    y1-1 - Body ground
    		Always
    		Below 1 Ω
    y1-4 - Body ground
    		Always
    		10 kΩ or higher
    w/o Navigation System:
    Tester Connection
    		Condition
    		Specified Condition
    G160-3 - 8 (HAZ)
    		Always
    		Below 1 Ω
    G160-16 - Body ground
    		Always
    		Below 1 Ω
    G160-3 - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000002CE20QHX.html)