Toyota Sequoia (2005). Manual — part 266
–
DIAGNOSTICS
TIRE PRESSURE WARNING SYSTEM
DI–859
1053
6
Check DTC (See page
CHECK:
(a)
Check for a DTC.
OK:
DTC is not output.
HINT:
It is necessary to register an ID when replacing the tire pressure monitor ECU.
Read ID on the DATA LIST before removing the tire pressure monitor ECU.
Register the ID to the new
tire pressure monitor ECU (see page
NG
Replace tire pressure monitor ECU
(See page
OK
End
DI–860
–
DIAGNOSTICS
TIRE PRESSURE WARNING SYSTEM
1054
DTC
C2177/77 Initialization Incomplete
CIRCUIT DESCRIPTION
Initialization is necessary after replacing either ECU, tires with different tire pressure or tire pressure monitor
valve sub–assy, after rotating the tires, or when a new vehicle is delivered.
DTC No.
DTC Detection Condition
Trouble Area
C2177/77
Initialization is not complete after vehicle speed of 5mph
(8km/h) or more continues for 20 minutes or more (total).
Tire pressure monitor valve sub–assy
Tire pressure monitor ECU
Tire pressure monitor receiver assy
Wire harness
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
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 blink
A
Comes on and goes off repeatedly at 0.5 second intervals
B
B
Go to step 7.
A
2
Clear DTC (See page
NEXT
DIDKD–01
–
DIAGNOSTICS
TIRE PRESSURE WARNING SYSTEM
DI–861
1055
3
Check DTC (See page
CHECK:
Check for a DTC.
OK:
DTC C2177/77 is not output.
NG
Go to step 4.
OK
Perform initialization (See page
).
4
Check tire pressure warning lamp.
PREPARATION:
Turn the ignition switch to the ON position.
CHECK:
Check the tire pressure warning lamp comes on for 3 seconds and goes off.
RESULT:
Does not come on
A
Comes on
B
B
Go to step 2.
A
F19136
Tire Pressure Monitor ECU:
T17
IND
F19755
C5–20
C5
Combination
Meter
F19138
Tire Pressure Monitor ECU:
T17
IND
GND2
DI–862
–
DIAGNOSTICS
TIRE PRESSURE WARNING SYSTEM
1056
5
Check harness and connector (T
ire pressure monitor ECU – Combination meter).
PREPARATION:
Disconnect the tire pressure monitor ECU T17 connector and
C5 combination meter connector.
CHECK:
Measure the resistance according to the value(s) in the table
below.
OK:
Tester Connection
Specified Condition
T17–6 (IND) – C5–20
Below 1
Ω
T17–6 (IND) – Body ground
10 k
Ω
or higher
NG
Repair or replace harness and connector.
OK
6
Inspect tire pressure monitor ECU.
PREPARATION:
Connect the tire pressure monitor ECU T17 connector.
CHECK:
Measure the voltage according to the value(s) in the table be-
low.
OK:
Tester connection
Condition
Specified condition
T17–6 (IND) –
T17–16 (GND2)
Immediately after turning
the ignition switch ON
(within 3 seconds)
8 to 16V
NG
Replace tire pressure monitor ECU
(See page
OK
Repair or replace combination meter
(See Page
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