o2 sensor TOYOTA HIGHLANDER 2001 Service Repair Manual

H43054
Airbag Sensor Rear RH Airbag Sensor Assy Center
R G W B
ESCR
CSR-
CSR+ VUCR
4
3 2 1
A184
18 1920
ESCR
CSR-
CSR+ VUCR
A18 A18 A18 S33
(*1)
(*1)
(*1)
(*1)
*1 w/ Curtain Shield Airbag 05-1366
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1556 Author
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1154/38 AIRBAG SENSOR REAR (RH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag sensor rear RH consists of the safing sensor, the diagnostic circuit and the lateral deceleration
sensor, etc.
If the airbag sensor assy center receives signals from the lateral deceleration sensor, it judges whether or
not the SRS should be activated.
DTC B1154/38 is recorded when a malfunction in the airbag sensor rear RH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1154/38

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

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

Open circuit in airbag sensor rear RH wire harness

Short circuit in airbag sensor rear RH wire harness

Airbag sensor rear RH malfunction

Airbag sensor assy center malfunction

Airbag sensor rear RH

Airbag sensor assy center

Floor wire
WIRING DIAGRAM
05IVU-01

H10600H01012C92968
H10600H01012C92968H42125
Airbag
Sensor
Assy
Center
DLC3
CG
TCDTC B1154/38
Airbag
Sensor
Rear RH
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1367
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: 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 B1154/38 is not output.
HINT:
Codes other than code B1154/38 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
sensor rear RH.
OK:
The connectors are connected.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK

H01015
C91384
C91385 C82599H01015
C91384
C91385 C82599
H42483
Airbag Sensor
Rear RHAirbag
Sensor
Assy
Center Floor Wire
CSR-
ESCR
VUCR
CSR+
SST
A
B C D
ESCR VUCR
CSR- CSR+
A18
S33
H01015
C82599H01015
C82599H42484
Airbag Sensor
Rear RHAirbag
Sensor
Assy
Center Floor Wire
CSR+ VUCR ESCRA
D
CB
CSR-
A18
05-1368
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK FLOOR WIRE(OPEN)
(a) Disconnect the connectors from the airbag sensor assy
center and the airbag sensor rear assy RH.
(b) Using SST, connect S33-4 (VUCR) to S33-1 (ESCR),
and connect S33-3 (CSR+) to S33-2 (CSR-) of connec-
tor ºCº.
SST 09843-18040
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A18-19 (VUCR) -
A18-20 (ESCR)AlwaysBelow 1 W
A18-18 (CSR+) -
A18-4 (CSR-)AlwaysBelow 1 W
NG REPAIR OR REPLACE FLOOR WIRE
OK
4 CHECK FLOOR WIRE(TO B+)
(a) Disconnect the SST 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
A18-19 (VUCR) -
Body groundIgnition switch ONBelow 1 V
A18-20 (ESCR) -
Body groundIgnition switch ONBelow 1 V
A18-18 (CSR+) -
Body groundIgnition switch ONBelow 1 V
A18-4 (CSR-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE
OK

H01015
C82599H01015
C82599H42484
Airbag Sensor
Rear RHAirbag
Sensor
Assy
Center Floor Wire
CSR+ VUCR ESCRCA DB
CSR-
A18
H01015
C82599H01015
C82599H42484
Airbag Sensor
Rear RHAirbag
Sensor
Assy
Center Floor Wire
CSR+ VUCR ESCRCA DB
CSR-
A18
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK FLOOR WIRE(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
A18-19 (VUCR) -
Body groundAlways1 MW or Higher
A18-20 (ESCR) -
Body groundAlways1 MW or Higher
A18-18 (CSR+) -
Body groundAlways1 MW or Higher
A18-4 (CSR-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE
OK
6 CHECK FLOOR WIRE(SHORT)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A18-19 (VUCR) -
A18-20 (ESCR)Always1 MW or Higher
A18-18 (CSR+) -
A18-4 (CSR-)Always1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE
OK

H10600H01012C92968
C92969H10600H01012C92968
C92969H42126
Airbag
Sensor
Rear LHAirbag
Sensor
Assy
Center
DTC B1154/38
DTC B1155/39
TC CG
05-1370
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: Date
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK AIR BAG SENSOR REAR RH
(a) Connect the connector to the airbag sensor assy center.
(b) Interchange the airbag sensor rear LH with RH and con-
nect 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 B1154/38 is output.
NG: BDTC B1155/39 is output.
OKDTC B1154/38 and B1155/39 are not
output.
NG:A REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
NG:B REPLACE AIR BAG SENSOR REAR RH
(SEE PAGE 60-59)
OK
USE SIMULATION METHOD TO CHECK

H43054
Airbag Sensor Rear LH Airbag Sensor Assy Center
R G W B
ESCL
CSL-
CSL+ VUCL
4
3 2 1
A161
15 1413
ESCL
CSL-
CSL+ VUCL
A16 A16 A16 S32
(*1)
(*1)
(*1)
(*1)
*1 w/ Curtain Shield Airbag
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1371
1561 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1155/39 AIRBAG SENSOR REAR (LH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag sensor rear LH consists of the safing sensor, the diagnostic circuit and the lateral deceleration
sensor, etc.
If the airbag sensor assy center receives signals from the lateral deceleration sensor, it judges whether or
not the SRS should be activated.
DTC B1155/39 is recorded when a malfunction in the airbag sensor rear LH is detected.
DTC No.DTC Detecting ConditionTrouble Area
B1155/39

Short circuit in airbag sensor rear LH wire harness (to
ground)

Short circuit in airbag sensor rear LH wire harness (to B+)

Open circuit in airbag sensor rear LH wire harness

Short circuit in airbag sensor rear LH wire harness

Airbag sensor rear LH malfunction

Airbag sensor assy center malfunction

Airbag sensor rear LH

Airbag sensor assy center

Floor wire No.2
WIRING DIAGRAM
05IVV-01

H01007
H10600C92969H01007
H10600C92969H42127
Airbag
Sensor
Assy
Center
DLC3
CG
TCDTC B1155/39
Airbag
Sensor
Rear LH
05-1372
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1562 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 B1155/39 is not output.
HINT:
Codes other than code B1155/39 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
sensor rear LH.
OK:
The connectors are connected.
NG CONNECT CONNECTORS, THEN GO TO STEP
1
OK

C91384C91385H01010C82600C91384C91385H01010C82600H43148
Airbag Sensor
Rear LHAirbag
Sensor
Assy
Center Floor Wire No.2
CSL-
ESCL
VUCL
CSL+ SST
SST
BA D
C
VUCL ESCL CSL-CSL+A16 S32
H01010C82600H01010C82600H42486
Airbag Sensor
Rear LHAirbag
Sensor
Assy
Center Floor Wire No.2
VUCL
CSL+
CSL-
CDA D
ESCL
A16
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK FLOOR WIRE NO.2(OPEN)
(a) Disconnect the connectors from the airbag sensor assy
center and the airbag sensor rear assy LH.
(b) Using SST, connect S32-1 (VUCL) to S32-4 (ESCL), and
connect S32-3 (CSL+) to S32-2 (CSL-) of connector ºCº.
SST 09843-18040
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A16-14 (VUCL) -
A16-13 (ESCL)AlwaysBelow 1 W
A16-15 (CSL+) -
A16-1 (CSL-)AlwaysBelow 1 W
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
4 CHECK FLOOR WIRE NO.2(TO B+)
(a) Disconnect the SST 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
A16-14 (VUCL) -
Body groundIgnition switch ONBelow 1 V
A16-13 (ESCL) -
Body groundIgnition switch ONBelow 1 V
A16-15 (CSL+) -
Body groundIgnition switch ONBelow 1 V
A16-1 (CSL-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK

H01010C82600H01010C82600H42486
Airbag Sensor
Rear LHAirbag
Sensor
Assy
Center Floor Wire No.2
VUCL
CSL+
A
B C D
CSL-
ESCL A16
H01010C82600H01010C82600H42486
Airbag Sensor
Rear LHAirbag
Sensor
Assy
Center Floor Wire No.2
VUCL
CSL+
A
B C D
CSL-
ESCL A16
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: Date
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2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK FLOOR WIRE NO.2(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
A16-14 (VUCL) -
Body groundAlways1 MW or Higher
A16-13 (ESCL) -
Body groundAlways1 MW or Higher
A16-15 (CSL+) -
Body groundAlways1 MW or Higher
A16-1 (CSL-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
6 CHECK FLOOR WIRE NO.2(SHORT)
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A16-14 (VUCL) -
A16-13 (ESCL)Always1 MW or Higher
A16-15 (CSL+) -
A16-1 (CSL-)Always1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK

H01007
H10600C92968
C92969H01007
H10600C92968
C92969H42128
Airbag
Sensor
Assy
Center
DLC3
CG
TCDTC B1154/38
DTC B1155/39
Airbag
Sensor
Rear RH
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1375
1565 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
7 CHECK AIR BAG SENSOR REAR LH
(a) Connect the connector to the airbag sensor assy center.
(b) Interchange the airbag sensor rear LH with RH and con-
nect 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 B1154/38 is output.
NG: BDTC B1155/39 is output.
OKDTC B1154/38 and B1155/39 are not
output.
NG:A REPLACE AIR BAG SENSOR REAR LH
(SEE PAGE 60-59)
NG:B REPLACE AIR BAG SENSOR ASSY CENTER
(SEE PAGE 60-53)
OK
USE SIMULATION METHOD TO CHECK