Page 1185 of 2572
H42820H42497H42820H42497H42847
Roof Wire No.2
Airbag
Sensor
Assy
Center Floor Wire
A
B DC E F
ICR+
Curtain
Shield
Squib RH
ICR-
BK2
H42821C89244H42821C89244H43067
Roof Wire No.2
Airbag
Sensor
Assy
Center Floor Wire
ICR+
Curtain
Shield
Squib RH
A
B DC E
F
ICR- C19
05-1402
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1592 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
8 CHECK FLOOR WIRE
(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 floor wire connector from the roof wire
No.2.
(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
BK2-2 (ICR+) -
Body groundIgnition switch ONBelow 1 V
BK2-1 (ICR-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE
OK
9 CHECK ROOF WIRE NO.2
(a) Measure the voltage according to the value(s) in the table
below when the ignition switch remains in the ON posi-
tion.
Standard:
Tester connectionConditionSpecified condition
C19-1 (ICR+) -
Body groundIgnition switch ONBelow 1 V
C19-2 (ICR-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE ROOF WIRE NO.2
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).
Page 1186 of 2572
H01454
C18
Curtain Shield Squib LHAirbag Sensor Assy Center
1
2Y
Y-BA16
A169
10ICL+
ICL- (*1)
(*1)
*1: w/ Curtain Shield Airbag
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1403
1593 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1165/87 SHORT IN CURTAIN SHIELD SQUIB (LH)
CIRCUIT
CIRCUIT DESCRIPTION
The curtain shield squib LH circuit consists of the airbag sensor assy center and the curtain shield airbag
assy LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1165/87 is recorded when a short circuit is detected in the curtain shield squib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1165/87
Short circuit between ICL+ wire harness and ICL- wire
harness of curtain shield squib LH
Curtain shield squib LH malfunction
Airbag sensor assy center malfunctionCurtain shield airbag assy LH (Curtain shield squib LH)
Airbag sensor assy center
Floor wire No.2
WIRING DIAGRAM
05IW1-01
Page 1187 of 2572
H41469H41469H43069
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center Floor Wire No.2
A
B C D
ICL- ICL+
C18
05-1404
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1594 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
INSPECTION PROCEDURE
1 CHECK CONNECTOR
(a) Turn the ignition switch to the LOCK position.
(b) Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.
(c) Disconnect the connectors from the curtain shield airbag assy LH.
(d) Check that the floor wire No.2 connector (on the curtain shield airbag assy LH side) is not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
2 CHECK FLOOR WIRE NO.2(CURTAIN SHIELD SQUIB LH CIRCUIT)
(a) Disconnect the connector from the airbag sensor assy
center.
(b) Release the activation prevention mechanism built into
connector ºBº (see page 05-1207).
(c) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
C18-1 (ICL+) -
C18-2 (ICL-)Always1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
Page 1188 of 2572
H01017H10600H11648H01017H10600H11648H42132
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
DLC3
CG
TCDTC B1165/87
C D
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1405
1595 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 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 B1165/87 is not output.
HINT:
Codes other than code B1165/87 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
Page 1189 of 2572
H01018H10600H11648H01018H10600H11648H42133
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
DLC3
CG TCDTC B1165/87
C D
05-1406
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1596 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK CURTAIN SHIELD AIR BAG ASSY LH(CURTAIN SHIELD SQUIB LH)
(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) Connect the connector to the curtain shield airbag assy
LH.
(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, and wait for at
least 60 seconds.
(f) Clear the DTCs stored in memory (see page 05-1215).
(g) Turn the ignition switch to the LOCK position.
(h) Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
(i) Check the DTCs (see page 05-1215).
OK:
DTC B1165/87 is not output.
HINT:
Codes other than code B1165/87 may be output at this time, but
they are not related to this check.
NG REPLACE CURTAIN SHIELD AIR BAG ASSY LH
(SEE PAGE 60-38)
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).
Page 1190 of 2572
H41469H41469H43069
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center Floor Wire No.2
A
B C D
ICL- ICL+
C18
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1407
1597 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1166/88 OPEN IN CURTAIN SHIELD SQUIB (LH)
CIRCUIT
CIRCUIT DESCRIPTION
The curtain shield squib LH circuit consists of the airbag sensor assy center and the curtain shield airbag
assy LH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1166/88 is recorded when an open circuit is detected in the curtain shield squib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1166/88
Open circuit in ICL+ wire harness or ICL- wire harness of
curtain shield squib LH
Curtain shield squib LH malfunction
Airbag sensor assy center malfunctionCurtain shield airbag assy LH (Curtain shield squib LH)
Airbag sensor assy center
Floor wire No.2
WIRING DIAGRAM
see page 05-1403.
INSPECTION PROCEDURE
1 CHECK FLOOR WIRE NO.2(CURTAIN SHIELD 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 curtain shield airbag assy LH.
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
C18-1 (ICL+) -
C18-2 (ICL-)AlwaysBelow 1 W
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
05IW3-01
Page 1191 of 2572
H01017
H10600H11649 C89252
H01017
H10600H11649 C89252H42134
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
DLC3
CG TCDTC B1166/88Floor Wire No.2
Service Wire
ICL- ICL+C
D
C18
05-1408
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1598 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 C18-1 (ICL+) and C18-2
(ICL-) of connector ºCº.
NOTICE:
Twist the end of the service wire in order to insert it
into the connector.
Do not forcibly insert the twisted 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 B1166/88 is not output.
HINT:
Codes other than code B1166/88 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
Page 1192 of 2572
H01018
H10600 H11649H01018
H10600 H11649H40945
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
CGDLC3
TCDTC B1166/88
C D
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1409
1599 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK CURTAIN SHIELD AIR BAG ASSY LH(CURTAIN SHIELD SQUIB LH)
(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 curtain shield airbag assy
LH.
(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 B1166/88 is not output.
HINT:
Codes other than code B1166/88 may be output at this time, but
they are not related to this check.
NG REPLACE CURTAIN SHIELD AIR BAG ASSY LH
(SEE PAGE 60-38)
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).
