Toyota Tacoma (2015-2018) Service Manual: Problem Symptoms Table

Toyota Tacoma (2015-2018) Service Manual / Window / Glass / Power Window Control System(w/o Jam Protection Function) / 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
Driver side power window does not operate with power window master switch	Front power window regulator motor assembly LH
	Power window regulator master switch assembly
	Harness or connector	-
Front passenger side power window does not operate with front passenger side power window switch	Power window regulator master switch assembly
	Front power window regulator motor assembly LH
	Harness or connector	-
Rear power window LH does not operate with rear power window switch LH*1	Rear power window regulator switch assembly LH
	Rear power window regulator motor assembly LH
	Harness or connector	-
Rear power window RH does not operate with rear power window switch RH*1	Rear power window regulator switch assembly RH
	Rear power window regulator motor assembly RH
	Harness or connector	-
Driver side power window auto down function does not operate with power window master switch (manual up / down function is normal)	Power window regulator master switch assembly
	Front power window regulator motor assembly LH
	Harness or connector	-
Remote up / down function does not operate	Power window regulator master switch assembly
	Driver side junction block
	Harness or connector	-

*1: for Double Cab

Power Window Control System (for back door power window)*1

Symptom	Suspected Area	See page
Power back window does not operate*1	Rear No. 2 power window regulator switch assembly
	Power window regulator motor assembly
	Harness or connector	-

*1: w/ Back Door Power Window

Operation Check

OPERATION CHECK 1. CHECK WINDOW LOCK FUNCTION (a) Turn the ignition switch ON. (b) Press the window lock switch of the power window regulator master switch assembly. HINT: The illumination (LED ...

Quarter Window Glass(for Access Cab)

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Other materials:

Auto Up Operation does not Fully Close Power Window (Jam Protection Function is Activated)
DESCRIPTION If a door glass or a power window regulator motor assembly does not operate smoothly, the jam protection function may be triggered automatically, resulting in the auto up function being unable to fully close the window. HINT: This symptom may occur for any of the windows. CAUTION ...

All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder
DESCRIPTION The main body ECU (multiplex network body ECU) receives switch signals from the power window regulator master switch assembly and driver door key cylinder lock or unlock switch signals from the front door lock assembly. The main body ECU (multiplex network body ECU) activates the ...

Removal
REMOVAL PROCEDURE 1. REMOVE REAR SEAT CUSHION ASSEMBLY (a) Remove the 2 bolts and rear seat cushion assembly. 2. REMOVE REAR SEATBACK HINGE COVER (a) Disengage the 6 claws to remove the 2 rear seatback hinge covers. ...