Toyota 4Runner: Problem Symptoms Table

Toyota 4Runner Service Manual / Vehicle Interior / Door Lock / Wireless Door Lock Control System(w/o Smart Key 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.

Wireless Door Lock Control System

Symptom	Suspected Area	See page
Only wireless control function inoperative	Proceed to "Only Wireless Control Function is Inoperative"
Only answer-back function does not operate	Proceed to "No Answer-Back"
Only automatic lock function does not operate	Proceed to "Door Courtesy Switch Circuit"
	Proceed to "Back Door Courtesy Switch Circuit"
	Main body ECU
Only illuminated entry function does operate	Lighting system
Only door ajar warning function does not operate	Proceed to "Door Courtesy Switch Circuit"
	Proceed to "Back Door Courtesy Switch Circuit"
	Main body ECU
Only panic alarm function does not operate	Theft deterrent system

Customize Parameters

CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure ...

Dtc Check / Clear

DTC CHECK / CLEAR 1. CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Main Body / ...

Other materials about Toyota 4Runner:

Removal
REMOVAL PROCEDURE 1. REMOVE UPPER RADIATOR SUPPORT SEAL 2. REMOVE FRONT BUMPER COVER (a) Put protective tape around the front bumper cover. (b) Remove the 3 bolts, 10 screws and 6 clips. (c) Detach the 14 claws to remove the front bumper cover with ra ...

Precaution
PRECAUTION 1. IGNITION SWITCH EXPRESSION HINT: The type of ignition switch used on this model differs according to the specifications of the vehicle. The expressions listed in the table below are used in this section. Expression Ign ...