Toyota 4Runner: System Description
SYSTEM DESCRIPTION
1. ILLUMINATION CONTROL SYSTEM (Illuminated Entry System)
(a) The illuminated entry system has the following control functions:
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Control |
Outline |
Lighting |
|---|---|---|
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Actuation Area-linked*1 |
When a registered key enters any actuation area around the doors, the lights that operate turn on. |
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Door Lock/Unlock-linked |
When any door is unlocked, the lights that operate turn on. |
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When all doors are closed, the lights that operate turn off. |
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Door Open/Close-linked |
When any door is opened, the lights that operate turn on. |
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When all doors are closed, the lights that operate turn off. |
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|
Back Door Open/Close-linked |
When back door is opened, the lights that operate turn on. |
Spot light assembly |
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When back doors are closed, the lights that operate turn off. |
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Engine Switch-linked*1 Ignition Switch-linked*2 |
When the ignition switch is turned from ACC or ON to off, the lights that operate turn on. |
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Battery Saving |
When the doors remain in the same condition for 20 minutes and the key is outside the vehicle exterior detection area, the illumination of the items listed to the right turns off.*1 When the doors remain in the same condition for 20 minutes and the key is not in the ignition key cylinder, the illumination of the items listed to the right turns off.*2 |
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- *1: w/ Smart Key System
- *2: w/o Smart Key System
2. BATTERY SAVING CONTROL SYSTEM
(a) When the interior lights have been illuminated for approximately 20 minutes with the engine switch off, this function turns off all of the interior lights in order to prevent the battery from being depleted.
HINT:
When the light control operation conditions are met, battery saving control is canceled.
How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
Use these procedures to troubleshoot the lighting system.
*: Use the Techstream.
PROCEDURE
1.
VEHICLE BROUGHT TO WORKSHOP
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System Diagram
SYSTEM DIAGRAM
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Other materials about Toyota 4Runner:
Meter Illumination does not Dim at Night
DESCRIPTION
If the dimmer switch is turned to TAIL, HEAD or AUTO, the main body ECU sends
a TAIL relay signal, panel light illumination signal, panel relay signal and TAIL
cancel OFF signal to the combination meter. Then the meter and accessory meter beco ...
Occupant Classification Sensor Power Supply Circuit Malfunction (B1793)
DESCRIPTION
The occupant classification sensor power supply circuit consists of the occupant
classification ECU and occupant classification sensors.
DTC B1793 is stored when a malfunction is detected in the occupant classification
sensor power supply cir ...
0.0265