Page 1005 of 4323
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±803
997 Author: Date:
2005 SEQUOIA (RM1146U)
6 Problem Symptoms Table (See page DI±814)
Go to step 8
7 Circuit Inspection (See page DI±827 To DI±888)
NEXT
8 Repair
NEXT
9 Confirmation Test
NEXT
End
Page 1006 of 4323
DIDJY±01
Inspector 's
Name:
Customer 's Name
Date Vehicle
Brought InProduction DateVIN
Licence Plate No.
Odometer Reading/ /
/ /
Date of First Occurrence
Frequency of Problem Occurrence/ /
Continuous Intermittent ( times a day)
In spite of abnormal low tire pressure, the warning lamp does not
come on.
The warning lamp was lit and the tire was filled up with air, but
the warning lamp does not go off.
Remains ONDoes not come on
Check ItemTire Pressure
Warning LampNormal
Malfunction Code (Code )
Symptomskm
miles
Tire Pressure Warning System Check Sheet
Tire Pressure
Warning Lamp
Abnormal
TireTire Pressure
FR ( ) FL ( ) RR ( ) RL ( )
Tire Size
Tire Type
Tire Wear Condition
History of changing tires or wheels
When ( )
History of rotating tires FR ( ) FL ( ) RR ( ) RL ( )
FR ( ) FL ( ) RR ( ) RL ( )
FR ( ) FL ( ) RR ( ) RL ( )
When ( )
DI±804
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
998 Author: Date:
2005 SEQUOIA (RM1146U)
CUSTOMER PROBLEM ANALYSIS CHECK
Page 1007 of 4323

DIDJZ±01
F19326
F19327
F19328
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±805
999 Author: Date:
2005 SEQUOIA (RM1146U)
REGISTRATION
1. IN CASE OF TIRE PRESSURE MONITOR ECU REPLACEMENT
(a) Read ID stored in the old ECU using the hand±held tester.
2. IN CASE OF TIRE PRESSURE MONITOR VALVE SUB±ASSY AND/OR TIRE PRESSURE MON-
ITOR ECU REPLACEMENT
(a) Read ID written on the tire pressure monitor valve.
3. REGISTER TRANSMITTER ID
NOTICE:
It is necessary to register the transmitter ID in the tire pressure monitor ECU when replacing the tire
pressure monitor valve sub±assy and/or tire pressure monitor ECU.
(a) Set the tire pressure of all wheels to the specified value.
Tire sizeFrontRearSpare
P245 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)240 kPa (2.4 kgf/cm2, 35 psi)240 kPa (2.4 kgf/cm2, 35 psi)
P265 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
P265 / 65 R 17220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
(b) Connect the hand±held tester to DLC3.
(c) Turn the ignition switch to the ON position.
(d) Read and write down the ID (ID1 to ID5) by using the
DATA LIST.
(e) Select the REGIST TIRE following the hand±held tester
screen.
(UTILITY ± REGIST TIRE)
(f) Input the ID (ID1 to ID5) using the hand±held tester and
transmit it to the tire pressure monitor ECU.
(g) Set the ID transmission condition to ºSUCCEEDEDº.
HINT:
If the operations of steps (d) to (f) do not complete within 5 min.,
the mode will return to normal operation mode.
Page 1008 of 4323
F19131
Registration Procedure DI±806
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1000 Author: Date:
2005 SEQUOIA (RM1146U)
Page 1009 of 4323

± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±807
1001 Author: Date:
2005 SEQUOIA (RM1146U)
4. CONFIRMATION OF TRANSMITTER ID REGISTRATION
(a) Set the tire pressure of all wheels to the specified value.
Tire sizeFrontRearSpare
P245 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)240 kPa (2.4 kgf/cm2, 35 psi)240 kPa (2.4 kgf/cm2, 35 psi)
P265 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
P265 / 65 R 17220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
(b) Connect the hand±held tester to DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select ºSIGNAL CHECKº mode on the hand±held tester (see page DI±810).
(e) Forcibly transmit the transmitter IDs for all wheels.
(1) When rapidly reducing the pressure, remove the valve core (above 20 kPa/15 sec.).
HINT:
The transmitter ID can be transmitted by rapidly reducing the tire air pressure.
When rapidly reducing the pressure, remove the valve core (above 20 kPa/15 secs.).
(2) Perform the steps mentioned above to all tires including the spare tire.
(f) Check that test mode DTCs C2181/81, C2182/82, C2183/83, C2184/84 and C2185/85 are all erased.
HINT:
The transmitter ID registration is complete when the test mode DTCs are erased.
If they haven't been erased, reset the tire pressure to the specified value and rotate the tire 90 to 270
degrees. Then forcibly transmit the transmitter IDs of all wheels. If they are still output, register the
transmitter IDs.
(g) Set the tire pressure of all wheels to the specified value.
Page 1010 of 4323

DIDK0±01
F19150
Tire Pressure
Warning
Reset Switch
F19143
Tire Pressure Warning Lamp
ON
OFF1 sec.
1 sec. DI±808
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1002 Author: Date:
2005 SEQUOIA (RM1146U)
INITIALIZATION
1. INITIALIZATION
NOTICE:
Initialization is necessary after replacing either the ECU,
tires with different tire pressure or tire pressure monitor
valve sub±assy, after rotating the tires, or when a new ve-
hicle is delivered.
(a) Set the tire air pressure for all wheels, including the spare,
to the specified value.
Tire sizeFrontRearSpare
P245 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)240 kPa (2.4 kgf/cm2, 35 psi)240 kPa (2.4 kgf/cm2, 35 psi)
P265 / 70 R 16220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
P265 / 65 R 17220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)220 kPa (2.2 kgf/cm2, 32 psi)
(b) Keep the tire pressure warning reset switch pressed for
3 seconds or more with the ignition switch on.
(c) Check that the tire pressure warning lamp blinks 3 times
(1 second ON, 1 second OFF).
HINT:
Do not turn the ignition switch off during initialization (The
initialization process takes about 20 minutes).
Initialization will be complete if signals are received from
all the wheels including the spare. Initialization will be
canceled if the ignition switch is turned off during initializa-
tion.
Page 1011 of 4323
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±809
1003 Author: Date:
2005 SEQUOIA (RM1146U)
(d) Confirm that initialization is complete using the hand±
held tester.
(e) Check that the pressure for each tire is displayed in INIT
THRESHOLD 1 to 5.
(f) Initialization is complete.
Page 1012 of 4323
DIDKL±01
D05981DLC3
Hand±Held
Tester
F19915
DI±810
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1004 Author: Date:
2005 SEQUOIA (RM1146U)
TEST MODE PROCEDURE
1. ENTER TEST MODE
HINT:
Operation of the tire pressure warning reset switch can be
checked in TEST MODE.
During TEST MODE, the system is not initialized by push-
ing the tire pressure warning reset switch. The circuit of
the tire pressure warning reset switch can be inspected
during this mode.
(a) Make sure that the ignition switch is off.
(b) Connect the hand±held tester to DLC3.
(c) Turn the ignition switch to the ON position.
(d) Select the TEST MODE on hand±held tester.
(e) Perform tire pressure warning reset switch test.
(1) Push the tire pressure warning reset switch.
(2) Check the tire pressure warning indicator lamp.
Test SignalNormal Condition
Tire Pressure Warning Reset SwitchSwitch ON: TPWS indicator come on
Switch OFF: TPWS indicator blinking