Lexus ES manuals

Lexus ES: Hazard Warning Switch Circuit

DESCRIPTION

The combination meter assembly receives the hazard warning signal switch assembly on signal and controls the operation of the hazard warning lights.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.

PROCEDURE

1.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Combination Meter > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Hazard Flasher Switch

Hazard warning signal switch signal

OFF or ON

OFF: Hazard warning signal switch off

ON: Hazard warning signal switch on

-

Body Electrical > Combination Meter > Data List

Tester Display

Hazard Flasher Switch

OK:

Normal conditions listed above are displayed.

OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

NG

2.

INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY

(a) Remove the hazard warning signal switch assembly.

Click here

(b) Inspect the hazard warning signal switch assembly.

Click here

NG

REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY

OK

3.

CHECK HARNESS AND CONNECTOR (HAZARD WARNING SIGNAL SWITCH ASSEMBLY - COMBINATION METER ASSEMBLY AND BODY GROUND)

(a) Disconnect the G16 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G24-6 (HAZ) - G16-2 (HZSW)

Always

Below 1 Ω

G24-6 (HAZ) or G16-2 (HZSW) - Body ground

Always

10 kΩ or higher

G24-3 (E) - Body ground

Always

Below 1 Ω

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

READ NEXT:

 Outside Handle Foot Light Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) controls the outside handle foot lights. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Before replacing the main body ECU (multiplex networ

 Front Side Marker Light Circuit

DESCRIPTION When the light control switch is in the tail or head position, the main body ECU (multiplex network body ECU) sends an illumination request signal to the headlight ECU sub-assembly to illu

 Taillight Relay Circuit

DESCRIPTION The main body ECU (multiplex network body ECU) controls the operation of the TAIL relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this s

SEE MORE:

 Components

COMPONENTS ILLUSTRATION *1 TIRE PRESSURE WARNING VALVE AND TRANSMITTER *2 TUBELESS TIRE VALVE *3 DISC WHEEL *4 VALVE CORE *5 TIRE VALVE CAP *6 TIRE *7 TIRE PRESSURE MONITOR SENSOR *8 GROMMET *9 WASHER *10 NUT N*m (kgf*cm, ft.*lbf): Specified t

 Installation

INSTALLATION PROCEDURE 1. INSTALL NO. 1 STEREO JACK ADAPTER ASSEMBLY (a) Engage the 2 claws to install the No. 1 stereo jack adapter assembly as shown in the illustration. Install in this Direction 2. INSTALL UPPER CONSOLE PANEL SUB-ASSEMBLY Click here 3. INSTALL REAR UPPER CONSOLE PANEL

© 2016-2024 Copyright www.lexguide.net