2001 TOYOTA HIGHLANDER o2 sensor

H42497 H01019
H40977
H42497
H01019
H40977
H42849
Side Squib RHAirbag
Sensor
Assy
Center
SFR+Floor Wire
A
DC
B
SFR-
S19
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1269
1459 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0112/41 SHORT IN SIDE SQUIB (RH) CIRCUIT (TO
GROUND)
CIRCUIT DESCRIPTION
The side squib RH circuit consists of the airbag sensor assy center and the separate type front seat back
assy (side squib RH).
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0112/41 is recorded when a short to ground is detected in the side squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0112/41

Short circuit in side squib (RH) wire harness (to ground)

Side squib (RH) malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib RH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
see page 05-1263.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(SIDE SQUIB RH CIRCUIT)
(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 connectors from the airbag sensor assy
center and the separate type front seat back assy (side
squib RH).
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
S19-1 (SFR+) -
Body groundAlways1 MW or Higher
S19-2 (SFR-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE
OK
0525N-16

H01020
H10600H01067H42496H01020
H10600H01067H42496H42851
Side Squib RHAirbag
Sensor
Assy
Center
SFR+
SFR-
CG
TC DLC3DTC B0112/41
Floor Wire
Service Wire
C
D
S19
05-1270
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1460 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
(b) Using a service wire, connect S19-1 (SFR+) and S19-2
(SFR-) of connector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
(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 B0112/41 is not output.
HINT:
Codes other than code B0112/41 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

H01021
H10600 H01067H01021
H10600 H01067H40983
DTC B0112/41
TC CG Side Squib RH
DLC3Airbag
Sensor
Assy
Center
C D
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1271
1461 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK SEPARATE TYPE FRONT SEAT BACK ASSY(SIDE SQUIB RH)
(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 service wire from connector ºCº.
(d) Connect the connector to the separate type front seat
back assy (side squib RH).
(e) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(g) Clear the DTCs stored in memory (see page 05-1215).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(j) Check the DTCs (see page 05-1215).
OK:
DTC B0112/41 is not output.
HINT:
Codes other than code B0112/41 may be output at this time, but
they are not related to this check.
NG REPLACE SEPARATE TYPE FRONT SEAT
BACK ASSY (SEE PAGE 72-1 1, 72-19)
OK
USE SIMULATION METHOD TO CHECK
HINT:

Before performing the simulation method, check that the airbag sensor assy center is in check mode
(see page 05-1218).

Perform the simulation method by selecting the check mode with the hand-held tester (see page
05-1218).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page 05-1218).

H42497 H01019
H40977
H42497
H01019
H40977
H42849
Side Squib RHAirbag
Sensor
Assy
Center
SFR+Floor Wire
A
DC
B
SFR-
S19
05-1272
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1462 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0113/42 SHORT IN SIDE SQUIB (RH) CIRCUIT (TO
B+)
CIRCUIT DESCRIPTION
The side squib RH circuit consists of the airbag sensor assy center and the separate type front seat back
assy (side squib RH).
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0113/42 is recorded when a short to B+ is detected in the side squib RH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0113/42

Short circuit in side squib (RH) wire harness (to B+)

Side squib (RH) malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib RH)

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
see page 05-1263.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE(SIDE SQUIB RH CIRCUIT)
(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 connectors from the airbag sensor assy
center and the separate type front seat back assy (side
squib RH).
(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) Measure the voltage according to the value(s) in the table
below.
Standard:
Tester connectionConditionSpecified condition
S19-1 (SFR+) -
Body groundIgnition switch ONBelow 1 V
S19-2 (SFR-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE
OK
0525O-17

H01020
H10600 H01068H42496H01020
H10600 H01068H42496H42852
Side Squib RHAirbag
Sensor
Assy
Center
SFR+
SFR-
DLC3
CG
TCDTC B0113/42
Floor Wire
Service Wire
C
D S19
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1273
1463 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the bat-
tery, and wait for at least for 90 seconds.
(c) Connect the connector to the airbag sensor assy center.
(d) Using a service wire, connect S19-1 (SFR+) and S19-2
(SFR-) of connector ºCº.
NOTICE:
Do not forcibly insert a service wire into the terminals of the
connector when connecting.
(e) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(g) Clear the DTCs stored in memory (see page 05-1215).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(j) Check the DTCs (see page 05-1215).
OK:
DTC B0113/42 is not output.
HINT:
Codes other than code B0113/42 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

H01021
H10600 H01068H01021
H10600 H01068H40985
Side Squib RH
CGDTC B0113/42
DLC3
TCAirbag
Sensor
Assy
Center
C D
05-1274
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1464 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK SEPARATE TYPE FRONT SEAT BACK ASSY(SIDE SQUIB RH)
(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 service wire from connector ºCº.
(d) Connect the connector to the separate type front seat
back assy (side squib RH).
(e) Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
(f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(g) Clear the DTCs stored in memory (see page 05-1215).
(h) Turn the ignition switch to the LOCK position.
(i) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(j) Check the DTCs (see page 05-1215).
OK:
DTC B0113/42 is not output.
HINT:
Codes other than code B0113/42 may be output at this time, but
they are not related to this check.
NG REPLACE SEPARATE TYPE FRONT SEAT
BACK ASSY (SEE PAGE 72-1 1, 72-19)
OK
USE SIMULATION METHOD TO CHECK
HINT:

Before performing the simulation method, check that the airbag sensor assy center is in check mode
(see page 05-1218).

Perform the simulation method by selecting the check mode with the hand-held tester (see page
05-1218).

After selecting the check mode, perform the simulation method by wiggling each connector of the air-
bag system or driving the vehicle on a city or rough road (see page 05-1218).

H01454
S18
Side Squib LHAirbag Sensor Assy Center
SFL+
SFL- Y-B
Y 1
211 12
A16
A16 (*1)
(*1)
*1: w/ Curtain Shield Airbag
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1275
1465 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0115/47 SHORT IN SIDE SQUIB (LH) CIRCUIT
CIRCUIT DESCRIPTION
The side squib LH circuit consists of the airbag sensor assy center and the separate type front seat back
assy (side squib LH).
This circuit instructs the SRS to deploy when deployment conditions are met.
DTC B0115/47 is recorded when a short circuit is detected in the side squib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0115/47

Short circuit between SFL+ wire harness and SFL- wire
harness of side squib LH

Side squib (LH) malfunction

Airbag sensor assy center malfunction
Separate type front seat back assy (Side squib LH)

Airbag sensor assy center

Floor wire No.2
WIRING DIAGRAM
0525P-04

H01016H42497H01016H42497H42853
Side Squib LH
Airbag
Sensor
Assy
Center
SFL+
SFL-Floor Wire No.2
B C DA
S18
H01017H10600H01073H01017H10600H01073H01017H10600H01073H42153
Side Squib LH
Airbag
Sensor
Assy
Center
DLC3
CGTCDTC B0115/47
DC
05-1276
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1466 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE NO.2(SIDE SQUIB LH CIRCUIT)
(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 connectors from the airbag sensor assy
center and the separate type front seat back assy (side
squib LH).
(d) Release the activation prevention mechanism built into
connector ºBº (see page 05-1207).
(e) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
S18-1 (SFL+) -
S18-2 (SFL-)Always1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
2 CHECK AIR BAG SENSOR ASSY CENTER
(a) Connect the connector to the airbag sensor assy center.
(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, and wait for at
least 60 seconds.
(d) Clear the DTCs stored in memory (see page 05-1215).
(e) Turn the ignition switch to the LOCK position.
(f) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(g) Check the DTCs (see page 05-1215).
OK:
DTC B0115/47 is not output.
HINT:
Codes other than code B0115/47 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