Lexus ES300 (2002 year). Manual - part 86

BODY ELECTRICAL – METER

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Multi-Information 
Display

LCD

U.S.A. Model

Canada Model

METER

COMBINATION METER

1. General

 An optitron display type combination meter has been adopted. The optitron display type meter realizes

excellent visibility through the use of smoke acylic in the protective panel, and LEDs (Light Emitting
Diodes) that is vary bright and has high contrast for illuminating the indicator and the dial.

 An odometer and trip meter that use an LCD (Liquid Crystal Display) have been adopted.

 The multi-information display has been provided below the speedometer. This multi-information display

use an LCD.

 The combination meter has a built-in meter ECU and buzzer for Key remainder.

 This meter ECU receives the engine coolant temperature signal and the engine speed signal by establishing

communication with the ECM via a serial data link.
Furthermore, the meter ECU receives various pieces of information that are necessary for its operation
from the sensors and switches.

 This meter ECU flashes its warning lights even if an open circuit occurs in the wiring harnesses, which

are connected to the ECUs for the purpose of flashing the ABS warning light, brake system warning light,
and the SRS airbag warning light.

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ECM

 Engine Coolant 

Temp. Signal

 Engine Speed Signal

Skid Control ECU

Output Signal

 Speed Sensor Signal

 Flashing Signal 

for Indicators

Input Signal

 Shift Position 

Signal (P, N)

Generator “L” 
Terminal Signal

Park / Neutral 
Position Switch

Rheostat

Serial 
Data Link

Combination Meter

Meter ECU

Body ECU

 Warning Request 

Signal

Airbag Sensor 
Assembly

Fuel Sender Gauge

No.1 Injector

Steering Wheel 
Pad Switch

Other Signals

2. System Diagram

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Display Portion

3. Multi-Information Display

General

 The following pieces of information appear on the multi-information display: instant fuel consumption,

average fuel consumption, drivable distance, average vehicle speed and elapsed time.

 The display functions can be switched by operating the steering wheel pad switch.

Display Portion

Item

Display Contents

Outline

Average

U.S.A.

Displays the average vehicle speed, which is
calculated by the ECU based on the length of time and
the driven distance after connecting the battery

Average
Vehicle Speed

Canada

the driven distance after connecting the battery
terminal or pressing of RESET switch of the steering
wheel pad switch.

Average
Fuel

U.S.A.

The calculation of the average fuel consumption rate
for this display is updated every 10 seconds by the
ECU, based on the following pieces of information:
the driven distance (from the time the battery

Fuel
Consumption

Canada

the  driven  distance  (from  the  time  the  battery
terminals have been connected, or the RESET switch
on the steering wheel pad switch has been pressed and
the fuel consumption volume (fuel injection signal
from No. 1 injector).

Instant
Fuel

U.S.A.

In contrast to the calculations performed every 10
seconds for the average fuel consumption, the ECU

Fuel
Consumption

Canada

seconds for the average fuel consumption, the ECU
calculates and displays the instant fuel consumption
every 2 seconds.

Elapsed Time

Displays the length of time that has elapsed from the
time the ignition switch has been turned ON after the
battery terminals have been connected, or the RESET
switch on the steering pad switch has been pressed.

Drivable

U.S.A.

Displays the approximate drivable distance that has
been calculated based on the following pieces of
information: the remaining fuel information from the

Drivable
Distance

Canada

information: the remaining fuel information from the
meter ECU, vehicle speed signal, No. 1 injector’s fuel
injection signal, and the fuel consumption that the
ECU has learned.

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Steering Wheel 
Pad Switch

Switch

Switch

Function

MODE

Pressing MODE switch changes the contents of the multi-information display in
the following sequence:

Instant Fuel Consumption

Average Fuel Consumption

Drivable Distance

Average Vehicle Speed

Elapsed Time

RESET

Pressing RESET switch resets the display contents of each mode.