Last Modified: 6-7-2017 6.8:8.0.40 Doc ID: RM000001A60003X
Model Year Start: 2007 Model: Land Cruiser Prod Date Range: [08/2006 -           ]
Title: LIGHTING: LIGHTING SYSTEM: PROBLEM SYMPTOMS TABLE; 2007 MY Land Cruiser [08/2006 -        ]

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.

Lighting system

Symptom

Suspected Area

See page

Headlight does not light up (Low beam)

1. Light control switch circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Light Control Switch Circuit

2. Headlight relay circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Headlight Relay Circuit

3. Combination switch

-

4. Body ECU

-

Headlight system does not operate (Hi beam or flash)

1. Dimmer signal circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Dimmer Signal Circuit

2. Light control switch circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Light Control Switch Circuit

3. Combination switch

-

4. Body ECU

-

Automatic light control system does not operate

1. Light control sensor circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: B1244; Light Sensor Circuit Malfunction

2. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

3. Body ECU

-

Taillight system does not light up

1. Taillight relay circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Taillight Relay Circuit

2. Light control switch circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Light Control Switch Circuit

3. Light control switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHT CONTROL SWITCH: ON-VEHICLE INSPECTION

4. Body ECU

-

Automatic light control system does not operate

1. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

2. Light control switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHT CONTROL SWITCH: ON-VEHICLE INSPECTION

3. Door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Door Courtesy Switch Circuit

4. Wire harness

-

Auto turn-off system does not operate when the driver door is opened

Driver door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

Headlight and taillight do not come on

1. Body ECU

-

2. Wire harness

-

Headlight and taillight stay on

1. Body ECU

-

2. Wire harness

-

Only one headlight comes on

1. H-LP R-LWR fuse

-

2. Body ECU

-

3. Bulb

-

4. Wire harness

-

Lo-beam does not light up (all)

1. Relay

-

2. Wire harness

-

Lo-beam does not light up (one side)

1. Bulb

-

2. H-LP L-LWR fuse

-

3. H-LP R-LWR fuse

-

4. Wire harness

-

Hi-beam does not light up (all)

1. Headlight dimmer switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: HEADLIGHT DIMMER SWITCH: INSPECTION

2. Body ECU

-

3. Wire harness

-

Hi-beam does not light up (one side)

1. Bulb

-

2. H-LP L-LWR fuse

-

3. H-LP R-LWR fuse

-

4. Daytime running light relay

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHT CONTROL SWITCH: ON-VEHICLE INSPECTION

5. Wire harness

-

Flash does not light up

1. Headlight dimmer switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: HEADLIGHT DIMMER SWITCH: INSPECTION

2. Body ECU

-

3. Wire harness

-

Headlight does not come on

1. Relay

-

2. Body ECU

-

3. Daytime running light relay

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHT CONTROL SWITCH: ON-VEHICLE INSPECTION

4. Headlight dimmer switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: HEADLIGHT DIMMER SWITCH: INSPECTION

5. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

6. Wire harness

-

7. Bulb

-

Headlight does not come on with light control switch in HEAD

1. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

2. Wire harness

-

Headlight does no turn off with light control switch in OFF

1. Relay

-

2. Wire harness

-

Headlight flickers

1. Bulb

-

2. Wire harness

-

Headlight is dark

1. Bulb

-

2. Wire harness

-

Taillight does not come on with light control switch in TAIL

1. Relay

-

2. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

3. Wire harness

-

Taillight does not come on with light control switch in TAIL

1. Relay

-

2. Automatic light control sensor

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

3. Wire harness

-

Headlight does not come on with engine running and light control switch in OFF

1. ECU-B1 fuse

-

2. ECU-IG1 fuse

-

3. Body ECU

-

4. Daytime running light relay

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHT CONTROL SWITCH: ON-VEHICLE INSPECTION

5. Generator L terminal

-

6. Parking brake switch

-

7. Wire harness

-

Illumination light system

Symptom

Suspected Area

See page

All switch illumination light does not light up

1. Power source circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Power Source Circuit

2. Light control rheostat

2007 MY Land Cruiser [08/2006 -        ]; METER: LIGHT CONTROL RHEOSTAT: ON-VEHICLE INSPECTION

3. Body ECU

-

Each switch illumination light does not light up

1. Illumination circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Illumination Circuit

2. Body ECU

-

Brightness does not change even when rheostat turned

1. Light control rheostat

2007 MY Land Cruiser [08/2006 -        ]; METER: LIGHT CONTROL RHEOSTAT: ON-VEHICLE INSPECTION

2. Body ECU

-

Door courtesy light does not light up

1. Door courtesy switch circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Door Courtesy Switch Circuit

2. Body ECU

-

Ignition switch and key unlock warning switch

Symptom

Suspected Area

See page

Ignition switch cannot be set to each position

1. Ignition switch

-

2. Power source circuit

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: Power Source Circuit

Ignition key illumination does not light up

1. Bulb

-

2. Body ECU

-

3. Wire harness

-

Key unlock warning system does not operate (The buzzer does not sound when the drivers door is opened with ignition switch OFF and key inserted)

1. Key unlock warning switch

2007 MY Land Cruiser [08/2006 -        ]; ENGINE IMMOBILISER: UNLOCK WARNING SWITCH: COMPONENTS

2. Door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

3. Wire harness

-

Key unlock warning system does not operate (The buzzer sound when the ignition switch is in ACC or ON)

1. Ignition switch

-

2. Wire harness

-

Fog light system

Symptom

Suspected Area

See page

Fog light does not light up with light control switch in HEAD (headlight is normal)

1. FOG fuse

-

2. Engine room junction block relay circuit

-

3. Fog light switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FOG LIGHT ASSEMBLY: ON-VEHICLE INSPECTION

4. Wire harness

-

Fog light does not light up with light control switch in HEAD (headlight does not light up)

1. Other parts*

-

2. Wire harness

-

Only one light does not light up

1. Bulb

-

2. Wire harness

-

Turn signal light and hazard warning light system

Symptom

Suspected Area

See page

Hazard warning light and turn signal light do not light up

1. ECU-IG2 fuse

-

2. TURN HAZ fuse

-

3. Ignition switch assembly

-

4. Turn signal flasher relay

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: ON-VEHICLE INSPECTION

5. Wire harness

-

Hazard warning light does not light up (turn is normal)

1. Hazard warning switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: HAZARD WARNING SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Turn signal light does not light up (hazard warning light is normal)

1. Turn signal switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: ON-VEHICLE INSPECTION

2. Wire harness

-

Turn signal light does not light up in one direction

1. Turn signal switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: LIGHTING SYSTEM: ON-VEHICLE INSPECTION

2. Wire harness

-

Only one light does not light up

1. Bulb

-

2. Wire harness

-

Room light system

Symptom

Suspected Area

See page

All lights do not come on

1. DOME fuse

-

2. Body ECU

-

3. DOME relay

-

Light does not come on when driver door is opened

1. Driver door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Light does not come on when passenger door is opened

1. Passenger door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Light does not come on when rear-right door is opened

1. Rear-right door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: REAR DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Light does not come on when rear-left door is opened

1. Rear-left door courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: REAR DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Only one of bulbs comes on

Bulb

-

Illumination does not fade out when all doors are closed

1. Courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

3. Body ECU

-

Illumination does not fade out immediately when ignition switch is turned to ACC or ON within 15 seconds after all doors are closed

1. Ignition switch assembly

-

2. ACC fuse

-

3. ECU-IG1 fuse

-

4. Body ECU

-

5. Wire harness

-

Illumination does not fade out immediately when all doors are locked within 15 seconds after they are closed

1. Door unlock detection switch

2007 MY Land Cruiser [08/2006 -        ]; DOOR LOCK: FRONT DOOR LOCK: INSPECTION

2. Wire harness

-

Room light does not light up

1. Bulb

-

2. Room light

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: PERSONAL LIGHT ASSEMBLY: ON-VEHICLE INSPECTION

3. Rear personal light

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: REAR ROOM LIGHT ASSEMBLY: ON-VEHICLE INSPECTION

4. Wire harness

-

Front personal light does not light up

1. Bulb

-

2. Front personal light

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: PERSONAL LIGHT ASSEMBLY: ON-VEHICLE INSPECTION

3. Room light

-

4. Wire harness

-

Rear room light does not light up

1. Bulb

-

2. Rear room light

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: REAR ROOM LIGHT ASSEMBLY: ON-VEHICLE INSPECTION

3. Wire harness

-

Vanity light does not light up

1. Bulb

-

2. Vanity light

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: VANITY LIGHT: INSPECTION

3. Wire harness

-

Glove compartment light does not light up

1. Bulb

-

2. Glove compartment courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: GLOVE BOX LIGHT: INSPECTION

3. Wire harness

-

Courtesy light does not light up

1. Bulb

-

2. Courtesy switch

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: FRONT DOOR COURTESY SWITCH: ON-VEHICLE INSPECTION

3. Wire harness

-

Back-up light system

Symptom

Suspected Area

See page

Back-up light does not light up

1. GAUGE2 fuse

-

2. Ignition switch assembly

-

3. Wire harness

-

4. Bulb

-

Back-up light remains always on

1. Park / neutral position switch

-

2. Wire harness

-

Only one light does not light up

1. Bulb

-

2. Wire harness

-

Stop light system

Symptom

Suspected Area

See page

Stop light does not light up

1. STOP fuse

-

2. Stop light switch assembly

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: STOP LIGHT SWITCH: ON-VEHICLE INSPECTION

3. Wire harness

-

Stop light always on

1. Stop light switch assembly

2007 MY Land Cruiser [08/2006 -        ]; LIGHTING: STOP LIGHT SWITCH: ON-VEHICLE INSPECTION

2. Wire harness

-

Only one light always on

Wire harness

-

Only one light does not light up

1. Bulb

-

2. Wire harness

-