Toyota Tacoma (2015-2018) Service Manual: Initialization

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

INITIALIZATION

NOTICE:

Initialization can only be performed for vehicles with a tire pressure warning reset switch.
If initialization is performed, the existing tire positions will be cleared, but will be automatically identified when the vehicle is driven at 37 km/h (23 mph) or more for 10 minutes or more.
Initialization can be confirmed through the tire pressure warning light.
The order in which the data is received is random.
If the signals from all the tire pressure warning valve and transmitters are received, initialization is completed.
Initialization is completed when the Data List "ID Tire Inflation Pressure" display shows the correct pressures (See page ).
Initialization is normally completed within a few minutes.
It may take a few minutes until the values are displayed. If the values are not displayed after a few minutes, perform troubleshooting according to the inspection procedure for DTCs C2121/21 to C2124/24 (See page ).
If initialization has not been completed successfully, DTC C2177/77 is stored after a vehicle speed of 37 km/h (23 mph) or more is detected for 20 minutes or more.
During test mode (sensor check mode), the system will not change to initialization mode even if the tire pressure warning reset switch is pushed.
Initialization can be terminated by connecting terminals 13 (TC) and 4 (CG) of the DLC3. Text in Illustration

*a

Front view of DLC3

1. BEFORE INITIALIZATION

(a) Make sure that the tires are cool.

(b) Set the tire pressure to the specified value (See page 2. INITIALIZATION PROCEDURE ).

2. INITIALIZATION PROCEDURE

(a) Turn the ignition switch to ON.

(b) Press and hold the tire pressure warning reset switch for 3 seconds or more until the tire pressure warning light blinks 3 times.

Text in Illustration

*1	Tire Pressure Warning Light
*2	Tire Pressure Warning Reset Switch
*a	Tire Pressure Warning Light Output Pattern
*b	1 sec.
*c	ON
*d	OFF

(d) Connect the Techstream to the DLC3.

(e) Turn the ignition switch to ON and turn the Techstream on.

(f) Enter the following menus: Chassis / Tire Pressure Monitor / Data List.

(g) Check that initialization has been completed.

(h) Confirm that the tire pressure data of all tires is displayed on the Techstream screen.

System Description

SYSTEM DESCRIPTION 1. DESCRIPTION OF SYSTEM (a) When the tire pressure warning system detects that the tire pressure of a tire is lower than the threshold, it will inform the driver using a warnin ...

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 ...

Other materials:

Data List / Active Test
DATA LIST / ACTIVE TEST 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 may ...

Test Mode Procedure
TEST MODE PROCEDURE 1. TEST MODE PROCEDURE (for Using Techstream) HINT: If the ignition switch is turned from the ON to the ACC or LOCK position during test mode, DTCs related to the signal check function will be cleared. During test mode, the skid control ECU (master cylinder ...

Sleep Operation Failure of Occupant Classification ECU (B1796)
DESCRIPTION During sleep mode, the occupant detection ECU monitors the condition of each sensor while the ignition switch is off. In this mode, if the occupant detection ECU detects an internal malfunction, DTC B1796 is set. DTC No. DTC Detections Conditions Tr ...