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 1030 of 4323

DI±828
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1022 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
NOTICE:
It is necessary to register an ID code after replacing the tire pressure monitor valve sub±assy and/or
the tire pressure monitor ECU (see page DI±805).
HINT:
Set the tire pressure to the specified value.
1 Forcibly transmit transmitter ID of all wheels.
PREPARATION:
Remove the valve cores of the all wheels to rapidly reduce the pressure of all tires to 120 kPa (1.2 kgf/cm2,
17 psi respectively).
HINT:
The transmitter ID can be transmitted forcibly by rapidly reducing tire air pressure.
NEXT
2 Check DTC (See page DI±820).
CHECK:
Check for a DTC.
OK:
DTC is not output.
OK Set tire pressure to normal value (Transmitter
stop condition is completely reset).
NG
3 Set tire pressure to normal value.
PREPARATION:
Set the tire pressure back to the specified normal 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)
NEXT
Page 1034 of 4323

F19140
Example:
Front
A
B
DI±832
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1026 Author: Date:
2005 SEQUOIA (RM1146U)
12 Set tire pressure to normal value.
PREPARATION:
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)
NEXT
13 Identify transmitter corresponding to DTC (See page DI±881).
NEXT
14 Interchange tires.
PREPARATION:
Interchange tire ºAº with a defective tire pressure monitor valve
sub±assy with tire ºBº with a normal one.
HINT:
If tire ºAº (left front) is identified in step 13.
NEXT
15 Set tire pressure to normal value.
PREPARATION:
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)
NEXT
Page 1041 of 4323
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±839
1033 Author: Date:
2005 SEQUOIA (RM1146U)
9 Replace tire pressure monitor ECU and check DTC.
PREPARATION:
(a) Replace the tire pressure monitor ECU (see page SA±20).
(b) Clear the DTCs.
CHECK:
Check for a DTC.
OK:
DTC is not output.
NG Replace tire pressure monitor valve sub±assy
(See page SA±16).
OK
End
10 Set tire pressure to normal value.
PREPARATION:
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)
NEXT
11 Identify transmitter corresponding to DTC (See page DI±881).
NEXT
Page 1042 of 4323

F19140
Example:
A
BFront
F19139
Example:
Front
A
DI±840
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1034 Author: Date:
2005 SEQUOIA (RM1146U)
12 Interchange tires.
PREPARATION:
Interchange tire ºAº with a defective tire pressure monitor valve
sub±assy with tire ºBº with a normal one.
HINT:
If tire ºAº (left front ) is identified in step 11.
NEXT
13 Set tire pressure to normal value.
PREPARATION:
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)
NEXT
14 Forcibly transmit transmitter ID.
PREPARATION:
Remove the valve core of tire ºAº, rapidly reduce the tire pres-
sure and forcibly transmit the transmitter ID of the tire pressure
monitor valve sub±assy.
NEXT
Page 1047 of 4323
F19326
DATA LIST:
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±845
1039 Author: Date:
2005 SEQUOIA (RM1146U)
7 Registration of transmitter ID (See page DI±805).
PREPARATION:
(a) Confirm the transmitter ID on the DATA LIST.
(b) Register the transmitter ID for all wheels.
(c) Set the tire pressure 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)
NEXT
8 Check DTC (See page DI±820).
CHECK:
Check for a DTC.
OK:
DTC is not output.
NG Go to step 9.
OK
End
9 Replace tire pressure monitor receiver assy (See page SA±13).
HINT:
Perform the inspection using parts from a normal vehicle when possible.
NEXT
Page 1051 of 4323

± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±849
1043 Author: Date:
2005 SEQUOIA (RM1146U)
5 Check DTC (See page DI±820).
CHECK:
Check for a DTC.
OK:
DTC is not output.
HINT:
If the result is OK, replace the tire pressure monitor valve sub±assy specified in STEP 2.
Register the transmitter ID after replacement and then set the tire pressure to the specified value.
NG Go to step 11.
OK
Replace tire pressure monitor valve sub±
assy (See page SA±13).
6 Identify transmitter corresponding to DTC (See page DI±881).
NEXT
7 Adjust tire pressure 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)
NEXT
8 Replace tire pressure monitor valve sub±assy (See page SA±16).
PREPARATION:
Replace the identified tire pressure monitor valve sub±assy with a new one.
HINT:
Before installing a new tire pressure monitor valve sub±assy onto the wheel, read and write down its trans-
mitter ID.
NEXT
Page 1052 of 4323
F19326
DATA LIST:
DI±850
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1044 Author: Date:
2005 SEQUOIA (RM1146U)
9 Registration of transmitter ID (See page DI±805).
PREPARATION:
(a) Confirm the transmitter ID on the DATA LIST.
(b) Register the transmitter ID for all wheels.
(c) Set the tire pressure 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)
NEXT
10 Check DTC (See page DI±820).
CHECK:
Check for a DTC.
OK:
DTC is not output.
NG Go to step 11.
OK
End
11 Replace tire pressure monitor receiver assy (See page SA±13).
HINT:
Perform the inspection using parts from a normal vehicle when possible.
NEXT