Toyota 4Runner: Problem Symptoms Table

Toyota 4Runner Service Manual / Vehicle Exterior / Wiper / Washer / Wiper And Washer System / 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.

Front Wiper and Washer

Symptom	Suspected Area	See page
Wiper and washer systems do not operate at all	Windshield wiper switch assembly
Wiper and washer systems do not operate at all	Harness or connector	-
Front wiper system does not operate	Windshield wiper motor assembly
	Windshield wiper switch assembly
	Harness or connector	-
Front washer system does not operate	Windshield washer motor and pump assembly
	Windshield wiper switch assembly
	Harness or connector	-
Front wipers do not operate when front washer switch is on	Windshield wiper motor assembly
	Windshield wiper switch assembly
	Harness or connector	-
When front wiper switch is off, wiper blades do not park or park in wrong position	Front wiper arm installation position
	Windshield wiper motor assembly

Rear Wiper and Washer

Symptom	Suspected Area	See page
Rear wiper and washer system does not operate	Windshield wiper switch assembly
Rear wiper and washer system does not operate	Harness or connector	-
Rear wiper system does not operate	Proceed to "Rear Wiper does not Operate"
Rear washer system does not operate	Proceed to "Rear Washer does not Operate"
Rear wiper arm does not return to its original position when wiper switch is turned off	Rear wiper motor assembly
	Harness or connector	-

Other

Symptom	Suspected Area	See page
Washer fluid level warning system does not operate*	Proceed to "Washer Fluid Level Warning Switch Circuit"
Washer fluid level warning system does not operate*	Combination meter assembly

*: w/ PTC Heater

Customize Parameters

CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE) HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY AND MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (a) Remove the main body ECU (multiplex network body ECU) (See page ). (b) Measure ...

Other materials about Toyota 4Runner:

How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the navigation system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEXT ...

Microphone Circuit between Microphone and Radio Receiver
DESCRIPTION The radio and display receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines. Using this circuit, the radio and display receive ...