Toyota 4Runner: Problem Symptoms Table

Toyota 4Runner Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Engine Immobiliser 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.

Engine Immobiliser System

Symptom	Suspected Area	See page
Engine does not start	ECU power source circuit
	SFI system
	Transponder key ECU assembly
Security indicator light malfunction	Security indicator light circuit
Security indicator light malfunction	Transponder key ECU assembly
Unable to register key	Key	-
Unable to register key	Transponder key ECU assembly

Dtc Check / Clear

DTC CHECK / CLEAR HINT: When using the Techstream with the ignition switch off to troubleshoot: Connect the Techstream to the vehicle and turn the front door courtesy light switch LH ...

Push Switch / Key Unlock Warning Switch Malfunction (B2780)

DESCRIPTION This DTC is stored if the transponder key ECU assembly does not detect that the unlock warning switch assembly is on even when the ignition switch is ON. Under normal conditions, the ...

Other materials about Toyota 4Runner:

Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE) NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. ( ...

XM Tuner Malfunction (B15BA)
DESCRIPTION These DTCs are stored when a malfunction occurs in the stereo component tuner assembly. DTC Code DTC Detection Condition Trouble Area B15BA When either of the conditions below is met: ...