Toyota Tundra. Manual — part 2474

Fig. 12: Customize Parameters Chart (1 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

*2

Fig. 13: Customize Parameters Chart (2 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

*3

Fig. 14: Customize Parameters Chart (3 Of 3)
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

PROBLEM SYMPTOMS TABLE

HINT:



Use the table below to help determine the cause of the problem symptom. The potential causes of the
symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each
symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.



Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Headlight and taillight system

HEADLIGHT AND TAILLIGHT SYSTEM

Symptom

Suspected Area

Refer To

"Low beam" does not turn on
(One side)

Headlight bulb (Low)

HEADLIGHT ASSEMBLY

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Headlight signal circuit

HEADLIGHT SIGNAL

CIRCUIT

Main body ECU

TERMINALS OF ECU

"Low beam" does not turn on
(Both sides)

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Headlight signal circuit

HEADLIGHT SIGNAL

CIRCUIT

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Lighting - Tundra

Light auto turn off system

LIGHT AUTO TURN OFF SYSTEM

Front fog light system

Main body ECU

TERMINALS OF ECU

"High beam" does not turn on
(One side)

Headlight bulb (High)

HEADLIGHT ASSEMBLY

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Headlight (HI-BEAM) circuit

HEADLIGHT (HI-BEAM)

CIRCUIT

Main body ECU

TERMINALS OF ECU

"High beam" does not turn on
(Both sides)

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Headlight (HI-BEAM) circuit

HEADLIGHT (HI-BEAM)

CIRCUIT

Main body ECU

TERMINALS OF ECU

"Flash" does not turn on (Low
beam and Hi-beam are normal)

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Main body ECU

TERMINALS OF ECU

Headlight is dark

Headlight bulb

HEADLIGHT ASSEMBLY

Taillight does not turn on (All)

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Taillight circuit

TAIL LIGHT CIRCUIT

Main body ECU

TERMINALS OF ECU

Only one taillight turns on

Rear combination light

REAR COMBINATION LIGHT

ASSEMBLY

Daytime running light system
does not operate

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

CAN communication system

CAN COMMUNICATION

SYSTEM

Parking brake switch

PARKING BRAKE SWITCH

DRL relay circuit

DRL RELAY CIRCUIT

Main body ECU

TERMINALS OF ECU

Symptom

Suspected Area

Refer To

Light auto turn off system does
not operate

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Ignition switch

-

Door courtesy switch circuit

DOOR COURTESY SWITCH

CIRCUIT

Main body ECU

TERMINALS OF ECU

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Lighting - Tundra

FRONT FOG LIGHT SYSTEM

Turn signal and hazard warning system

TURN SIGNAL AND HAZARD WARNING SYSTEM

Stop light system

STOP LIGHT SYSTEM

Symptom

Suspected Area

Refer To

Front fog light does not turn on
(All)

Light control switch circuit

LIGHT CONTROL SWITCH

CIRCUIT

Front fog light circuit

FRONT FOG LIGHT CIRCUIT

Main body ECU

TERMINALS OF ECU

Only one front fog light does not
turn on

Front fog right bulb

FOG LIGHT ASSEMBLY

Symptom

Suspected Area

Refer To

"Hazard" and "Turn" do not turn
on

Turn signal flasher

TURN SIGNAL FLASHER

ASSEMBLY

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Hazard warning light does not
turn on

Hazard warning switch circuit

HAZARD WARNING SWITCH

CIRCUIT

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Turn signal flasher

TURN SIGNAL FLASHER

ASSEMBLY

Turn signal does not turn on

Turn signal light circuit

TURN SIGNAL LIGHT

CIRCUIT

Headlight dimmer switch circuit

HEADLIGHT DIMMER

SWITCH CIRCUIT

Turn signal flasher

TURN SIGNAL FLASHER

ASSEMBLY

Symptom

Suspected Area

Refer To

Stop light does not operate (All)

STOP fuse

PARTS LOCATION

Stop light switch

STOP LIGHT SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Rear combination light

REAR COMBINATION LIGHT

ASSEMBLY

Only one stop light does not
operate

Rear combination light

REAR COMBINATION LIGHT

ASSEMBLY

STOP fuse

PARTS LOCATION

High mount stop light

HIGH MOUNTED STOP

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Lighting - Tundra

Illuminated entry system

ILLUMINATED ENTRY SYSTEM

Interior light system

INTERIOR LIGHT SYSTEM

High mount stop light does not
operate (All)

LIGHT ASSEMBLY

Stop light switch

STOP LIGHT SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Only one high mount stop light
does not operate

High mount stop light bulb

HIGH MOUNTED STOP

LIGHT ASSEMBLY

Symptom

Suspected Area

Refer To

Illuminated entry does not operate
(All)

Door courtesy switch circuit

DOOR COURTESY SWITCH

CIRCUIT

Illumination circuit

ILLUMINATION CIRCUIT

Main body ECU

TERMINALS OF ECU

Symptom

Suspected Area

Refer To

Door courtesy light does not turn
on (All)

Perform ACTIVE TEST (Door
courtesy light switch)

DATA LIST / ACTIVE TEST

Door courtesy light switch

FRONT DOOR COURTESY

SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Only front door courtesy light LH
does not turn on

Front door courtesy light bulb LH

DOOR COURTESY LIGHT

(FOR FRONT DOOR)

Front door courtesy light switch
LH

FRONT DOOR COURTESY

SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Only front door courtesy light RH
does not turn on

Front door courtesy light bulb RH

DOOR COURTESY LIGHT

(FOR FRONT DOOR)

Front door courtesy light switch
RH

FRONT DOOR COURTESY

SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

Only rear door courtesy light LH
does not turn on

Rear door courtesy light bulb LH

DOOR COURTESY LIGHT

(FOR REAR DOOR)

Rear door courtesy light switch
LH

REAR DOOR COURTESY

SWITCH

Harness and connector

ELECTRONIC CIRCUIT

INSPECTION PROCEDURE

2009 Toyota Tundra

2009 ACCESSORIES AND EQUIPMENT Lighting - Tundra