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 power 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:

 Back-up Light Circuit

DESCRIPTION The hybrid vehicle control ECU controls the back-up lights via the BKUP LP relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system b

 Back-up Light Circuit

DESCRIPTION The hybrid vehicle control ECU controls the back-up lights via the BKUP LP relay. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for circuits related to this system b

 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

SEE MORE:

 High Voltage System Interlock Circuit Open (P0A0A13,P0A0A92)

DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects that a safety device (interlock) is operated or that there is an open circuit in the detection circuit. (Even if an open circuit occurs while the vehicle is stopped, the system determines that the safety device was operated.)

 Installation

INSTALLATION PROCEDURE 1. INSPECT AND ADJUST BRAKE PEDAL HEIGHT Click here 2. INSTALL BRAKE PEDAL STROKE SENSOR ASSEMBLY NOTICE: Do not drop the brake pedal stroke sensor assembly. If the brake pedal stroke sensor assembly has been dropped, replace the brake pedal stroke sensor assembly with

© 2016-2024 Copyright www.lexguide.net