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.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Power Window Control System

Symptom

Suspected Area

See page

Power window does not operate at all

Main body ECU (Multiplex network body ECU)


Driver side junction block assembly

-

Remote up/down function does not operate

Proceed to "Remote Up/Down Function does not Operate"


Driver side power window does not operate with power window master switch

Proceed to "Driver Side Power Window does not Operate with Power Window Master Switch"


Front passenger side power window does not operate with front passenger side power window switch

Proceed to "Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch"


Rear power window LH does not operate with rear power window switch LH

Proceed to "Rear Power Window LH does not Operate with Rear Power Window Switch LH"


Rear power window RH does not operate with rear power window switch RH

Proceed to "Rear Power Window RH does not Operate with Rear Power Window Switch RH"


Driver side power window auto up/down function does not operate with power window master switch

Proceed to "Driver Side Power Window Auto Up/Down Function does not Operate with Power Window Master Switch"


Front passenger side power window auto up/down function does not operate with front passenger side power window switch

Proceed to "Front Passenger Side Power Window Auto Up/Down Function does not Operate with Front Passenger Side Power Window Switch"


Rear power window LH auto up/down function does not operate with rear power window switch LH

Proceed to "Rear Power Window LH Auto Up/Down Function does not Operate with Rear Power Window Switch LH"


Rear power window RH auto up/down function does not operate with rear power window switch RH

Proceed to "Rear Power Window RH Auto Up/Down Function does not Operate with Rear Power Window Switch RH"


Power windows do not operate with driver side door key cylinder

Proceed to "Power Door Lock Control System"


Main body ECU (multiplex network body ECU)


Driver side junction block assembly

-

Power windows do not operate with wireless transmitter

Proceed to "Wireless door lock control system (w/ Smart Key System)"


Proceed to "Wireless door lock control system (w/o Smart Key System)"


Main body ECU (multiplex network body ECU)


Driver side junction block assembly

-

Key-off operation function operates even if operating conditions are not satisfied

Proceed to "Key-off Operation Function Operates even if Operating Conditions are not Satisfied"


Auto up operation does not fully close power window (jam protection function is activated)

Proceed to "Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated)"


Auto down operation does not Fully open power window (Catch protection function is activated)

Proceed to "Auto Down Operation does not Fully Open Power Window (Catch Protection Function is Activated)"


Jam protection function does not operate

Proceed to "Jam Protection Function does not Operate"


Back Door Power Window Control System

Symptom

Suspected Area

See page

Auto up/down function does not operate

Proceed to "Auto Up/Down Function does not Operate"


Manual up/down function does not operate

Proceed to "Manual Up/Down Function does not Operate on Back Door Only"


Power windows do not operate with wireless transmitter

Proceed to "Wireless door lock control system (w/ Smart Key System)"


Proceed to "Wireless door lock control system (w/o Smart Key System)"


Main body ECU (multiplex network body ECU)


Driver side junction block assembly

-

Power windows do not operate with back door key cylinder

Proceed to "Manual Up/Down Function does not Operate on Back Door Only"


Power windows do not operate with back door control switch

Proceed to "Manual Up/Down Function does not Operate on Back Door Only"


Only open operation of back door power window regulator switch does not operate

Meter / gauge system


Proceed to "Back Door Courtesy Switch Circuit"


Key-off operation function operates even if operating conditions are not satisfied

Proceed to "Key-off Operation Function Operates even if Operating Conditions are not Satisfied"


Auto up operation does not fully close power window (jam protection function is activated)

Proceed to "Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated)"


Jam protection function does not operate

Proceed to "Jam Protection Function does not Operate"


Initialization
INITIALIZATION 1. INITIALIZE POWER WINDOW CONTROL SYSTEM (POWER WINDOW REGULATOR MOTOR ASSEMBLY (ALL DOORS)) CAUTION: When a power window regulator motor assembly is reinstalled or replaced, the ...

Terminals Of Ecu
TERMINALS OF ECU 1. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (a) Disconnect the h1 multiplex network master switch connector. (b) Measure the voltage and resistance according to the value(s ...

Other materials about Toyota 4Runner:

Removal
REMOVAL PROCEDURE 1. REMOVE REAR NO. 2 SEAT ASSEMBLY (a) Remove the rear No. 2 seat assembly (See page ). 2. REMOVE REAR NO. 1 FLOOR STEP COVER (w/ Rear No. 2 Seat) 3. REMOVE QUARTER SCUFF PLATE LH (w/ Rear No. 2 Seat) 4. REMOVE REAR DOOR SCUFF P ...

Off-road driving
When driving your vehicle off-road, please observe the following precautions to ensure your driving enjoyment and to help prevent the closure of areas to off-road vehicles: • Drive your vehicle only in areas where off-road vehicles are permitted to tr ...

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