Toyota 4Runner manuals

Toyota 4Runner: Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.

Illuminated Entry System

Symptom

Suspected Area

See page

Illuminated entry system does not operate

DOME fuse

-

Smart key system (for entry function)*1


Wireless door lock control system (w/o smart key system)*2


Door courtesy switch circuit


Harness or connector

-

Main body ECU (multiplex network body ECU)

-

  • *1: w/ Smart Key System
  • *2: w/o Smart Key System
Interior Light System

Symptom

Suspected Area

See page

Map light does not illuminate

Map light bulb

-

Map light assembly


Harness or connector

-

No. 1 room light does not illuminate

No. 1 room light bulb

-

No. 1 room light assembly

-

Harness or connector

-

Interior foot light does not illuminate

Active Test (Fr Foot Light)


Harness or connector

-

Main body ECU (multiplex network body ECU)

-

Door inside handle illumination light does not illuminate

Inside handle illumination light circuit


Main body ECU (multiplex network body ECU)

-

Door courtesy light does not illuminate

Door courtesy light bulb

-

Door courtesy switch circuit


Harness or connector

-

Main body ECU (multiplex network body ECU)

-

Spot light does not illuminate

Luggage room light circuit


Back door courtesy switch circuit


Spot light assembly

-

Multiplex network door ECU

-

Ignition Key Cylinder Light System (w/o Smart Key System)

Symptom

Suspected Area

See page

Ignition key cylinder light does not illuminate

Transponder key amplifier


Harness or connector

-

Main body ECU (multiplex network body ECU)

-

Door Mirror Foot Light System

Symptom

Suspected Area

See page

Door mirror foot light does not illuminate

MIRROR fuse

-

Door mirror foot light circuit


Outer mirror

-

Main body ECU (multiplex network body ECU)

-

Vanity Light System

Symptom

Suspected Area

See page

Vanity light does not illuminate

Vanity light bulb

-

Visor assembly

-

Harness or connector

-

Glove Box Light System

Symptom

Suspected Area

See page

Glove box light does not illuminate

Harness or connector

-

Battery Saving Control System

Symptom

Suspected Area

See page

Battery saving function does not operate

Door courtesy switch circuit


IG signal circuit


Interior light auto cut circuit


Harness or connector

-

Main body ECU (multiplex network body ECU)

-

Operation Check
OPERATION CHECK 1. INSPECT ILLUMINATED ENTRY SYSTEM OPERATION NOTICE: Perform this inspection with the customize parameters at the initial setting. HINT: The illuminated entry system illuminates ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY, MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (See page ). (b) Measure the voltage and resistance accor ...

Other materials about Toyota 4Runner:

Installation
INSTALLATION PROCEDURE 1. INSTALL BRAKE BOOSTER GASKET (a) Install a new brake booster gasket to the hydraulic brake booster. 2. INSTALL HYDRAULIC BRAKE BOOSTER ASSEMBLY (a) Install the hydraulic brake booster assembly with the 4 nuts. Torque: 14 N·m ...

Installation
INSTALLATION CAUTION / NOTICE / HINT HINT: Use the same procedure for the RH and LH sides. The procedure listed below is for the LH side. A bolt without a torque specification is shown in the standard bolt chart (See page ). PROC ...

© 2016-2020 | www.to4runner.net

0.0067