2001 TOYOTA HIGHLANDER o2 sensor

H44547
T15
Telltale Light assemblyAirbag Sensor
Assy Center
P-AB A17
1 25
Y
P-ABInstrument Panel J/B
SW1 PAON
A17 W
W-B
W IL1
3F11
14
W-B
IG+PAON
LG
B
AIRBAG ON
AIRBAG OFF
7
2
5
41L
1L 1E
1K2 58
Instrument Panel J/B
3A10 13 10
6 3F
3FCenter J/B
AM1 IG12 4 I15 Ignition SW
WG RGR
B F7
F/L Block
ALT 12AM1IG1
17
6 10
12 1K
1C 1C
1A
IB FL MAIN
Battery
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1353
1543 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
WIRING DIAGRAM

H44095
H01015G27651H43468H40065H44539
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center CB
PAONP-AB
A17
DA
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1355
1545 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK TELLTALE LAMP ASSY (PASSENGER AIRBAG ON/OFF INDICATOR
LIGHT)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Disconnect the connector from the telltale lamp assy.
(d) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(e) Turn the ignition switch to the ON position.
(f) Check the passenger airbag ON/OFF indicator light op-
eration.
OK:
The passenger airbag ON/OFF indicator light (ºONº
and ºOFFº) do not come on.
NG REPLACE TELLTALE LAMP ASSY
(SEE PAGE 71-10)
OK
3 CHECK WIRE HARNESS (TO GROUND)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-1 (P-AB) -
Body groundAlways1 MW or Higher
A17-25 (PAON) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE WIRE HARNESS
OK

H01015G27651H43468H40065H44539
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center CB
PAONP-AB
A17
DA
H10600H01012H01069H43467H43087
H44541
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center
CGTC DLC3
DTC B1152/28
05-1356
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1546 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK WIRE HARNESS (SHORT)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-1 (P-AB) -
A17-25 (PAON)Always1 MW or Higher
NG REPAIR OR REPLACE WIRE HARNESS
OK
5 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connectors to the airbag sensor assy center.
(b) Connect the connector to the clock assy.
(c) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Clear the DTCs stored in memory (see page 05-1215).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(h) Check the DTCs (see page 05-1215).
OK:
DTC B1152/28 is not output.
HINT:
Codes other than code B1152/28 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
OK
USE SIMULATION METHOD TO CHECK

I40606H44540
SW1IG+
T15
H01015G27651 H43625H43469H44540
H44542
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center CB
PAON P-ABA17
T15
PAON
Service Wire
DA
P-AB
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1357
1547 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
6 WIRE HARNESS (SOURCE VOLTAGE)
(a) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(b) Turn the ignition switch to the ON position.
(c) Measure the voltage and resistance according to the val-
ue(s) in the table below.
Standard:
Tester connectionConditionSpecified condition
T15-4 (IG+) -
Body groundIgnition switch ON10 to 14 V
T15-5 (SW1) -
Body groundAlwaysBelow 1 W
NG REPLACE TELLTALE LAMP ASSY OR WIRE
HARNESS (TELLTALE LAMP ASSY - BATTERY)
OR BATTERY
OK
7 CHECK WIRE HARNESS (OPEN)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Using a service wire, connect T15-2 (P-AB) and T15-7
(PAON) of connector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of
connector when connecting.
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-1 (P-AB) -
A17-25 (PAON)AlwaysBelow 1 W
NG REPAIR OR REPLACE WIRE HARNESS
OK

H01015G27651H43468H40065H44539
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center CB
PAONP-AB
A17
DA
H40065
A17
E1 E2
05-1358
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1548 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
8 CHECK WIRE HARNESS (TO B+)
(a) Disconnect the service wire from connector ºCº.
(b) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(c) Turn the ignition switch to the ON position.
(d) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester connectionConditionSpecified condition
A17-25 (PAON) -
Body groundIgnition switch ONBelow 1 V
A17-1 (P-AB) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE WIRE HARNESS
OK
9 CHECK WIRE HARNESS (AIRBAG SENSOR ASSY CENTER - BODY GROUND)
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-27 (E1) -
Body groundAlwaysBelow 1 W
A17-28 (E2) -
Body groundAlwaysBelow 1 W
NG REPAIR OR REPLACE WIRE HARNESS
OK

H10600H01012H01069H43467H43087
H44541
Telltale
Lamp
AssyAirbag
Sensor
Assy
Center
CGTC DLC3
DTC B1152/28
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1359
1549 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
10 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connectors to the airbag sensor assy center.
(b) Connect the connector to the clock assy.
(c) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(d) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(e) Clear the DTCs stored in memory (see page 05-1215).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(h) Check the DTCs (see page 05-1215).
OK:
DTC B1152/28 is not output.
HINT:
Codes other than code B1152/28 may be output at this time, but
they are not related to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
OK
USE SIMULATION METHOD TO CHECK

H43119H44103
A16
A16LSP+
LSP- W
B 2
4 B19
Seat Position Airbag Sensor (Driver's Side)
Airbag Sensor Assy Center
34
VS
GNDA16
A163
8(*1)
(*1) (*2) (*2)
*1: w/ Curtain Shield Airbag
*2: w/o Curtain Shield Airbag 05-1360
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1550 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1153/25 SEAT POSITION AIRBAG SENSOR
MALFUNCTION
CIRCUIT DESCRIPTION
The seat position airbag sensor circuit consists of the airbag sensor assy center and the seat position airbag
sensor.
DTC B1153/25 is recorded when a malfunction is detected in the seat position airbag sensor circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1153/25

Open circuit in LSP+ wire harness or LSP- wire harness
of seat position airbag sensor

Short circuit in seat position airbag sensor wire harness
(to ground)

Short circuit in seat position airbag sensor wire harness
(to B+)

Seat position airbag sensor malfunction

Airbag sensor assy center malfunction

Seat position airbag sensor

Airbag sensor assy center

Floor wire No.2
WIRING DIAGRAM
05IVT-02

H10600 C91522H01007H10600 C91522H01007H42468
Airbag
Sensor
Assy
Center Seat
Position
Airbag
Sensor
DTC B1153/25 DLC3
CG
TC
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1361
1551 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK DTC
(a) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(b) Clear the DTCs stored in memory (see page 05-1215).
(c) Turn the ignition switch to the LOCK position.
(d) Turn the ignition switch to the ON position and wait for at
least 60 seconds.
(e) Check the DTCs (see page 05-1215).
OK:
DTC B1153/25 is not output.
HINT:
Codes other than code B1153/25 may be output at this time, but
they are not related to this check.
NG Go to step 2
OK
USE SIMULATION METHOD TO CHECK
2 CHECK CONNECTION OF CONNECTORS
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
(c) Check that the connectors are properly connected to the airbag sensor assy center and the seat posi-
tion airbag sensor.
OK:
The connectors are connected.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK