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

Toyota Tacoma (2015-2018) Service Manual / Tire And Wheel / Tire Pressure Warning 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.

Tire Pressure Warning System

Symptom	Suspected Area	See page
Tire pressure warning light does not illuminate despite tire pressure decreasing	Initialization
	Check Data List (ID Tire Inflation Pressure)
	ID code check (Registration)
Tire pressure warning light remains illuminated (Goes off during initial check)	Tire pressure warning light circuit
Tire pressure warning light remains illuminated (Illuminates during initial check)	Check Data List (ID Tire Inflation Pressure)
	Tire pressure adjustment
	ID code check (Registration)
	Initialization
Initialization cannot be done	Tire pressure warning reset switch
DTC check cannot be done using SST check wire	TC and CG terminal circuit
DTC check cannot be done using SST check wire	ECU power source circuit
Tire position not identified*	Tire pressure warning valve and transmitter
Tire position not identified*	Main body ECU (Multiplex network body ECU)	-

*: w/ Tire Inflation Pressure Display Function

Registration

REGISTRATION PROCEDURE 1. BEFORE REGISTRATION NOTICE: The transmitter ID is written on the tire pressure warning valve and transmitter. It is not possible to read the transmitter ID after instal ...

Terminals Of Ecu

TERMINALS OF ECU 1. CHECK TIRE PRESSURE WARNING ECU AND RECEIVER (a) Disconnect the T14 tire pressure warning ECU and receiver connector and measure the voltage and resistance on the wire harness ...

Other materials:

Customize Parameters
CUSTOMIZE PARAMETERS NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Make a note of the current settings before customizing. HINT: The following PCS functions and the pre-collision system sensitivity setting ...

Cursor or Map Rotates when Vehicle Stopped
PROCEDURE 1. CHECK CONDITION (a) Check with the customer if the vehicle has been turned by a turntable. OK: Vehicle has not been turned by a turntable. HINT: If the vehicle is turned on a turntable with the ignition switch ON, the system ...

Starting System
Parts Location PARTS LOCATION ILLUSTRATION ILLUSTRATION Precaution PRECAUTION 1. IGNITION SWITCH EXPRESSIONS (a) The type of ignition switch used on this model differs depending on the specifications of the vehicle. The expressions listed in the table below are used in this section. ...