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

Toyota Tacoma (2015-2018) Service Manual / Engine Immobiliser / Engine Immobiliser System(w/ 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.
If the problem only occurs in certain locations or at certain times of day, check for wave interference.
If the vehicle components are added, check for wave interference from the added components.

Engine Immobiliser System (w/ Smart Key System)

Symptom	Suspected Area	See page
Security indicator light does not blink	Proceed to "Security Indicator Light Does not Blink"
Engine immobiliser system does not operate properly	Proceed to "Immobiliser System does not Operate Properly"
Engine cannot be started*1	Certification ECU (smart key ECU assembly)
	ECM
	SFI system
Power source mode cannot be changed*1	Engine switch
Power source mode cannot be changed*1	Certification ECU (smart key ECU assembly)
Steering lock lock/unlock not possible*2	Steering lock ECU (steering lock actuator or upr bracket assembly)

*1: Refer to Problem Symptoms Table for Smart Key System (for Start Function).
*2: Refer to Problem Symptoms Table for Steering Lock System.

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use this procedure to troubleshoot the engine immobiliser system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO W ...

Registration

REGISTRATION PROCEDURE 1. DESCRIPTION OF CODE REGISTRATION HINT: Registering an ID code enables the entry and start function, wireless door lock control function and engine immobiliser ...

Other materials:

Data List / Active Test
DATA LIST / ACTIVE TEST 1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals ...

Electrical Key Oscillator(for Front Floor)
Components COMPONENTS ILLUSTRATION Installation INSTALLATION PROCEDURE 1. INSTALL NO. 1 INDOOR ELECTRICAL KEY ANTENNA ASSEMBLY (a) Engage the clamp to install the No. 1 indoor electrical key antenna assembly. (b) Connect the connector. 2. INSTALL FRONT CONSOLE BOX (See page ) Remov ...

AUTO LSD Indicator Light does not Come ON
DESCRIPTION The AUTO LSD does not operate even if the VSC OFF switch is pressed under the following conditions: The brake system is faulty. The temperature inside the hydraulic brake booster increases and the AUTO LSD operation is suspended. WIRING DIAGRAM CAUTION / NOTI ...