Toyota Tundra. Manual — part 408

SYSTEM DESCRIPTION

1. METER GAUGE AND WARNING/INDICATOR

Meter/Gauge:

METER/GAUGE REFERENCE

ECM

Combination
meter



CRUISE indicator signal



Engine coolant temperature signal



ATF temperature signal



Current gear position signal



Fuel injection information signal



Engine RPM data

CAN

Center airbag sensor

Combination
meter

Passenger side seat belt buckle switch
signal

CAN

4WD control ECU*1

Combination
meter



SRS warning light signal



4HI indicator signal



4LO indicator signal

CAN

Skid control ECU

Combination
meter



ABS warning signal



AUTO LSD warning signal



Slip indicator signal



VSC OFF indicator signal



Vehicle speed signal



Brake warning light signal

CAN

Air conditioning
amplifier

Combination
meter

Outside temperature signal

CAN

Main body ECU

Combination
meter



Driver side seat belt buckle switch
signal



Courtesy light switch signal



Key unlock warning signal



BEAM indicator light signal



HEAD indicator light signal*2



TAIL indicator light signal*3

CAN

HINT:
*1: for 4WD
*2: for U.S.A.
*3: except U.S.A.

Item

Details

Speedometer

Based on signal received from wheel speed sensor, skid control ECU calculates

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Warning/Indicator:

vehicle speed and transmits data to combination meter (CAN)

Tachometer*1

Combination meter receives engine rpm signal from ECM, and gauge needle
operates (CAN)

ODO/TRIP meter



Combination meter receives vehicle speed pulse integration signal from
skid control ECU, and ODO/TRIP meter display operates (CAN)



Using ODO/TRIP switch, ODO/TRIP meter display changes

Fuel receiver gauge

Combination meter receives fuel amount information measured by fuel sender
gauge, and gauge needle operates (Direct line)

Engine coolant
temperature gauge*2

Combination meter receives water temperature signal from ECM, and gauge
needle operates (CAN)

A/T oil pressure
receiver gauge

Combination meter receives A/T oil temperature signal from ECM, and gauge
needle operates (CAN)

Oil pressure receiver
gauge*3

Combination meter receives engine rpm signal from ECM (CAN), and receives
oil pressure sender signal from oil pressure sender (Direct line). Then meter
measures signals and gauge needle operates.

Voltmeter*4

Monitors IG voltage and gauge needle operates (Direct line)

HINT:
*1: w/ Tachometer
*2: w/ Engine coolant temperature gauge
*3: w/ Oil pressure receiver gauge
*4: w/ Voltmeter

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Fig. 10: Meter Warning Indicator Identification Chart (1 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra

Fig. 11: Meter Warning Indicator Identification Chart (2 Of 2)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. MULTI-INFORMATION DISPLAY (w/ Multi-information display)

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Meter - Tundra