L-SB-0048-14

August 26, 2014

Tire Pressure Warning System Activation
Service
Category

General
Lexus Supports

Section

Pre-Delivery Service

Market

~

ASE Certification -

USA

Applica bility
YEAR(S)

MODEL(S)

2015

GX460

ADDITIONAL INFORMATION

Introduction
2015 model year GX 460 vehicles are equipped with a direct-type Tire Pressu re Warning Sy stem
(TPWS) . Each tire (including the spare tire) has a tire pressure warning valve/sensor that measures
tire pressure . The data is transmitted to the Tire Pressure Warning System antenna/receiver and
then to the Tire Pressure Warning System ECU.
During Pre-Delivery Service (PDS) , the tire pressure warning valves/sensors must be activated
according to the procedure in this bulletin .
Required Tools & Equipment
REQUIRED EQUIPMENT

Techstream 2.0•
Techstream Lite

SUPPLIER

PART NUMBER

QTY

TS2UNIT

ADE

1

TSLITEPDLR01

• Essential SST.

NOTE
• Only ONE of the Techstream units listed above is required.
• Software version 9.20.022 or later is required.
• Additional Techstream units may be ordered by calling Approved Dealer Equipment (ADE) at
1-800-368-6787.

Warranty Information
OP CODE

DESCRIPTION

TIME

OFP

T1

T2

NIA

Not Applicable to Warranty

-

-

-

-

© 2014 Lexus, a division of Toyota Motor Sales, USA

Page 1 of 3

L-SB-0048-14

August 26, 2014

Tire Pressure Warning System Activation

Referen ce

• After cycling the ignition to the "IG-ON"
position , the Low Tire Pressure Warning
Light will blink for one minute and remain
illuminated, until all the tire pressure
warning valves/sensors are activated.

Figure 1.

• The Diagnostic Trouble Codes (DTCs) listed
below may be stored in the TPWS ECU until
the tire pressure warning valves/sensors
are activated .
• Th e DTCs will automatically clear when
the tire pressure warning va lves/sensors
are activated .

I

1

OTC NO.

OTC NO.

•1

Low Tire Pressure Warn ing Li ght

OTC EXPLANATION

•2

11

C2111

Transmitter 10 1 Operation Stop

12

C2112

Transmitter 102 Operation Stop

13

C2113

Transmitter 10 3 Operation Stop

14

C2114

Transmitter 104 Operation Stop

15

C2115

Transmitter 105 Operation Stop

•1 : OTC No. indicated by blinking of the Low Tire Pressure Warning Light.
•2: OTC No. indicated on Techstream.
Activation Procedure

1. Connect Techstream.
2. Cycle the ignition switch to the "IG-ON"
position and check that the Low Tire Pressure
Warning Light blinks for 1 minute, and then
remains illuminated.

Figure 2.

1

I

Low Tire Pressure Warni ng Light

© 2014 Lexus, a division of Toyota Motor Sales, USA

Page 2 of 3

L-SB-0048-14

August 26, 2014

Page 3 of 3

Tire Pressure Warning System Activation

Activation Procedure (Continued)

3. Press or remove the valve core to reduce the tire
inflation pressure rapidly by 6 psi (0.4 kgf/cm2,
40 kPa), or more, within 30 seconds .

Figure 3.

If the tire inflation pressure is NOT reduced
by 6 psi (0.4 kgf/cm2, 40 kPa) , or more,
within 30 seconds, the ti re pressure warning
valves/sensors will NOT be activated.
NOTE

This operation is required for the system to be
activated and must be performed for each tire
(including the spare tire), one at a time.
1

I

Core

4. Using Techstream , check for TPWS DTCs.
• If NO DTCs are stored , go to step 5.
• If DTCs C2111 - C2115 are stored, repeat step 3.
5. Adjust all tires (including the spare tire) to the standard tire infl ation pressure as indicated on
the Tire and Loading Information label on the vehicle. Confirm that the Low Tire Pressure
Warn ing Light is OFF.
NOTE

• To adjust tire pressure correctly when outside temperature is significantly colder
than shop temperatu re, perform a Health Check using Techstream and select the
" Compensation Tire Pressure" checkbox. Compensation pressures will be displayed on
the Health Check results screen.
• Adjust the tire pressure when the tires are cold.

© 2014 Lexus, a division of Toyota Motor Sales, USA