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 1043 of 4323
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±841
1035 Author: Date:
2005 SEQUOIA (RM1146U)
15 Check DTC again (See page DI±820).
CHECK:
Check for a DTC.
OK:
DTC is not output.
HINT:
If a DTC is output, replace the identified tire pressure monitor valve sub±assy.
Before installing a new tire pressure monitor valve sub±assy, read and write down its transmitter ID.
Register the transmitter ID after replacement and then set the tire pressure to the specified value (see
page DI±805).
NG Replace tire pressure monitor valve sub±assy
(See page SA±16).
OK
Replace tire pressure monitor receiver assy
(See page SA±13).
Page 1044 of 4323

DI±842
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1036 Author: Date:
2005 SEQUOIA (RM1146U)
DTC C2141/41 Transmitter ID1 Error
DTC C2142/42 Transmitter ID2 Error
DTC C2143/43 Transmitter ID3 Error
DTC C2144/44 Transmitter ID4 Error
DTC C2145/45 Transmitter ID5 Error
CIRCUIT DESCRIPTION
DTC No.DTC Detecting ConditionTrouble Area
C2141/41
C2142/42
C2143/43
C2144/44
C2145/45
If an ºERRORº signal is received 3 times consecutively, the
tire pressure monitor valve sub±assy will be judged as de-
fective and these DTCs will be output.
This will happen under the situations where the inflation
pressure is out of the specified range 0 to 637.5 kPa (0 to
6.48 kgf/cm
2, 0 psi to 92.2 psi), the temperature inside the
tire is out of the specified range ±40 to 215C (±40 to 419
F), or an error occurs in the tire pressure monitor valve
sub±assy, etc.
Tire pressure monitor valve sub±assy
Tire pressure monitor ECU
Tire pressure monitor receiver assy
HINT:
It is necessary to perform the procedure to identify the tire pressure monitor valve sub±assy that is malfunc-
tioning because it cannot be identified by the output DTC.
DIDK9±01
Page 1045 of 4323
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
DI±843
1037 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 Check tire pressure warning lamp.
PREPARATION:
Turn the ignition switch to the ON position.
CHECK:
Check the tire pressure warning lamp.
RESULT:
Does not blinkA
Comes on and goes off repeatedly at 0.5 second intervalsB
B Go to step 5.
A
2 Identify transmitter corresponding to DTC (See page DI±881).
NEXT
3 Clear DTC (See page DI±820).
NEXT
Page 1046 of 4323
DI±844
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1038 Author: Date:
2005 SEQUOIA (RM1146U)
4 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.
Before installing a new tire pressure monitor valve sub±assy, read and write down its transmitter ID.
Register the transmitter ID after replacement and then set the tire pressure to the specified value (see
page DI±805).
NG Go to step 9.
OK
Replace tire pressure monitor valve sub±
assy (See page SA±16).
HINT:
Replace the identified tire pressure monitor valve sub±assy.
5 Identify transmitter corresponding to recorded DTC (See page DI±881).
NEXT
6 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, read and write down its transmitter ID.
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 1048 of 4323
DI±846
± DIAGNOSTICSTIRE PRESSURE WARNING SYSTEM
1040 Author: Date:
2005 SEQUOIA (RM1146U)
10 Check DTC (See page DI±820).
PREPARATION:
Check for a DTC.
OK:
DTC is not output.
NG Replace tire pressure monitor ECU
(See page SA±20).
OK
End