2001 TOYOTA HIGHLANDER o2 sensor

C91384C91385H01010C82600C91384C91385H01010C82600H43148
SSL-SSL+
ESLVUPL
Airbag
Sensor
Assy
Center Floor Wire No.2
SST SSTSide Airbag
Sensor Assy LHD
CBA
ESLVUPL
SSL-SSL+
S16A16
H01010
C83441H42231
SSL-
SSL+
ESLVUPL
Airbag
Sensor
Assy
Center Floor Wire No.2
Side Airbag
Sensor Assy LHD
CBA
A16
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1329
1519 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK FLOOR WIRE NO.2(OPEN)
(a) Disconnect the connectors from the airbag sensor assy
center and the side airbag sensor assy LH.
(b) Using SST, connect S16-4 (VUPL) and S16-1 (ESL),
and connect S16-3 (SSL+) and S16-2 (SSL-) of connec-
tor ºCº.
SST 09843 - 18040
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A16-16 (VUPL) -
A16-18 (ESL)AlwaysBelow 1 W
A16-17 (SSL+) -
A16-20 (SSL-)AlwaysBelow 1 W
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
4 CHECK FLOOR WIRE NO.2(TO GROUND)
(a) Disconnect the SST from connector ºCº
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A16-16 (VUPL) -
Body groundAlways1 MW or Higher
A16-18 (ESL) -
Body groundAlways1 MW or Higher
A16-17 (SSL+) -
Body groundAlways1 MW or Higher
A16-20 (SSL-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK

H01010
C83441H42231
SSL-
SSL+
ESLVUPL
Airbag
Sensor
Assy
Center Floor Wire No.2
Side Airbag
Sensor Assy LHD
CBA
A16
H01010
C83441H42231
SSL-
SSL+
ESLVUPL
Airbag
Sensor
Assy
Center Floor Wire No.2
Side Airbag
Sensor Assy LHD
CBA
A16
05-1330
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
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: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK FLOOR WIRE NO.2(TO B+)
(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 according to the value(s) in the table
below.
Standard:
Tester connectionConditionSpecified condition
A16-16 (VUPL) -
Body groundIgnition switch ONBelow 1 V
A16-18 (ESL) -
Body groundIgnition switch ONBelow 1 V
A16-17 (SSL+) -
Body groundIgnition switch ONBelow 1 V
A16-20 (SSL-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
6 CHECK FLOOR WIRE NO.2(SHORT)
(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
A16-16 (VUPL) -
A16-18 (ESL)Always1 MW or Higher
A16-17 (SSL+) -
A16-20 (SSL-)Always1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK

H01007
H10600H01065H01066H42116
Airbag
Sensor
Assy
Center Side
Airbag
Sensor
Assy RH
DLC3
CGTC
DTC B1140/32
DTC B1141/33
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1331
1521 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK DTC
(a) Connect the airbag sensor assy center connector.
(b) Interchange the side airbag sensor assy RH with LH and
connect the connectors to them.
(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 at for
least 60 seconds.
(h) Check the DTC (see page 05-1215).
Result:
NG: ADTC B1140/32 is output.
NG: BDTC B1141/33 is output.
OKDTC B1140/32 and B1141/33 are not
output.
NG:A REPLACE SIDE AIR BAG SENSOR ASSY LH
(SEE PAGE 60-57)
NG:B REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
OK
USE SIMULATION METHOD TO CHECK

H02750
Airbag Sensor Assy Center
+SR
-SR A17
A179
20 IK13
4 B-W
BR-W 2
1 +SR
-SR
IK1 A9
Airbag Front RH Sensor
W
B 05-1332
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1522 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1148/36 FRONT AIRBAG SENSOR (RH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag front RH sensor circuit consists of the diagnostic circuit and the frontal deceleration sensor, etc.
If the airbag sensor assy center receives signals from the frontal deceleration sensor, it judges whether or
not the SRS should be activated.
DTC B1148/36 is recorded when a malfunction in the airbag front RH sensor is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1148/36

Short circuit in front airbag sensor RH wire harness (to
B+)

Short circuit in front airbag sensor RH wire harness (to
ground)

Open circuit in +SR wire harness or -SL wire harness of
front airbag sensor RH

Airbag front RH sensor malfunction

Airbag sensor assy center malfunction

Airbag front RH sensor

Airbag sensor assy center

Cowl wire

Engine room main wire
WIRING DIAGRAM
05IVN-01

H02757H10600H16834H02757H10600H16834H02757H10600H16834H42117
Airbag
Front
RH
SensorAirbag
Sensor
Assy
Center
DLC3
CG
TCDTC B1148/36
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1333
1523 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 B1148/36 is not output.
HINT:
Codes other than code B1148/36 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 airbag front
RH sensor.
OK:
The connectors are connected.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK

H03353C81408H08016H03353C81408H08016H41800
Airbag
Sensor
Assy
CenterAirbag
Front
RH Sensor
Service Wire
DC BA
E F
+SR
-SR
+SR -SRA9A17
H03355C81408H03355C81408H42510
Airbag
Sensor
Assy
CenterAirbag
Front
RH Sensor
+SR
-SR
A
B
C
D E F
A17
05-1334
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1524 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (OPEN)
(a) Disconnect the connectors from the airbag sensor assy
center and the airbag front RH sensor.
(b) Using a service wire, connect A9-2 (+SR) and A9-1 (-
SR) of connector ºEº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-9 (+SR) -
A17-20 (-SR)AlwaysBelow 1 W
NG Go to step 8
OK
4 CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO B+)
(a) Disconnect the service wire from connector ºEº.
(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
A17-9 (+SR) -
Body groundIgnition switch ONBelow 1 V
A17-20 (-SR) -
Body groundIgnition switch ONBelow 1 V
NG Go to step 9
OK

H03355C81408H03355C81408H42510
Airbag
Sensor
Assy
CenterAirbag
Front
RH Sensor
+SR
-SR
A
B
C
D E F
A17
H03355C81408H03355C81408H42510
Airbag
Sensor
Assy
CenterAirbag
Front
RH Sensor
+SR
-SR
A
B
C
D E F
A17
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1335
1525 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO 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
A17-9 (+SR) -
Body groundAlways1 MW or Higher
A17-20 (-SR) -
Body groundAlways1 MW or Higher
NG Go to step 10
OK
6 CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (SHORT)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A17-9 (+SR) -
A17-20 (-SR)Always1 MW or Higher
NG Go to step 11
OK

H02757H10600 H16834H16835
H02757H10600 H16834H16835H42118
Airbag
Sensor
Assy
CenterAirbag
Sensor
Front LH
DLC3
CG
TCDTC B1148/36
DTC B1149/37
DC
05-1336
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1526 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK AIR BAG FRONT RH SENSOR
(a) Connect the connector to the airbag sensor assy center.
(b) Interchange the airbag front RH sensor with the airbag
sensor front LH and connect the connectors to them.
(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).
Result:
NG: ADTC B1149/37 is output.
NG: BDTC B1148/36 is output.
OKDTC B1148/36 and B1149/37 are not
output.
NG:A REPLACE AIR BAG SENSOR FRONT RH
(SEE PAGE 60-55)
NG:B REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
OK
USE SIMULATION METHOD TO CHECK