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

Toyota Tacoma (2015-2018) Service Manual / Window / Glass / Power Window Control System(w/ 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
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 Regulator Master Switch Assembly	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*1	Rear power window regulator switch assembly LH
	Rear power window regulator motor assembly LH
	Power window regulator master switch assembly
	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
	Power window regulator master switch assembly
	Harness or connector	-
Driver Side Power Window Auto Up / Down Function does not Operate with Power Window Regulator Master Switch Assembly	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"
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"

*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	Rear NO. 2 Power Window Regulator Switch Assembly
	Power Window Regulator Motor Assembly
	Main body ECU (driver side junction block)
	Harness or connector	-

*1: w/ Back Door Power Window

Operation Check

OPERATION CHECK 1. CHECK WINDOW LOCK SWITCH HINT: Before performing the window lock switch operation check, make sure that the window lock switch is off (the switch is not pushed in). (a) Check ...

DIAGNOSIS SYSTEM 1. DESCRIPTION (a) The power window control system data can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techs ...

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