TOYOTA HIGHLANDER 2001 Service Repair Manual

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

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).

H41469H41469H43069
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center Floor Wire No.2
A
B C D
ICL+
ICL-
C18
05-1410
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1600 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1167/85 SHORT IN CURTAIN SHIELD SQUIB (LH)
CIRCUIT (TO GROUND)
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 B1167/85 is recorded when a short to ground is detected in the curtain shield squib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1167/85

Short circuit in curtain shield squib LH wire harness (to
ground)

Curtain shield squib LH malfunction

Airbag sensor assy malfunction
Curtain 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+) -
Body groundAlways1 MW or Higher
C18-2 (ICL-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
05IW5-01

H01017
C89252
H10600H11646
H01017
C89252
H10600H11646H42135
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
DLC3
CG TCDTC B1167/85
Floor Wire No.2
Service Wire
ICL- ICL+C D
C18
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-141 1
1601 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 B1167/85 is not output.
HINT:
Codes other than code B1167/85 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

H01018
H10600 H11646H01018
H10600 H11646H40947
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center
CGDLC3
TCDTC B1167/85
C D
05-1412
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1602 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 B1167/85 is not output.
HINT:
Codes other than code B1167/85 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).

H41469H41469H43069
Curtain Shield
Squib LH
Airbag
Sensor
Assy
Center Floor Wire No.2
A
B C D
ICL+
ICL- C18
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1413
1603 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1168/86 SHORT IN CURTAIN SHIELD SQUIB (LH)
CIRCUIT (TO B+)
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 B1168/86 is recorded when a short to B+ is detected in the curtain shield squib LH circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1168/86

Short circuit in curtain shield squib LH wire harness (to
B+)

Curtain shield squib LH malfunction

Airbag sensor assy center malfunction
Curtain 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) 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
C18-1 (ICL+) -
Body groundIgnition switch ONBelow 1 V
C18-2 (ICL-) -
Body groundIgnition switch ONBelow 1 V
NG REPAIR OR REPLACE FLOOR WIRE NO.2
OK
05IW7-01

H01017
C89252
H10600H11647
H01017
C89252
H10600H11647H42136
Airbag
Sensor
Assy
Center
DLC3
CG TCDTC B1168/86
Floor Wire No.2Curtain Shield
Squib LH
Service Wire
ICL- ICL+C D
C18
05-1414
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1604 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 90 seconds.
(c) Connect the connector to the airbag sensor assy center.
(d) 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.
(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 B1168/86 is not output.
HINT:
Codes other than code B1168/86 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

H01018
H10600 H11647H01018
H10600 H11647H40949
Airbag
Sensor
Assy
Center
CGDLC3
TCDTC B1168/86
Curtain Shield
Squib LH
C D
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1415
1605 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 B1168/86 is not output.
HINT:
Codes other than code B1168/86 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).

H43063
Airbag Sensor Assy Center
D Squib
A20
Spiral Cable
Sub-assyY-G Y-R
D2+
D2- 4A17
3A171716D+
D- A17
A171314
Y Y-B
1
2 2
1
1
2 05-1416
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1606 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B1180/17 SHORT IN D SQUIB (DUAL STAGE - 2ND
STEP) CIRCUIT
CIRCUIT DESCRIPTION
The D squib (Dual stage - 2nd step) circuit consists of the airbag sensor assy center, the spiral cable sub-
assy and the horn button assy.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1180/17 is recorded when a short circuit is detected in the D squib (Dual stage - 2nd step) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1180/17

Short circuit between D2+ wire harness and D2- wire
harness of D squib (Dual stage - 2nd step)

D squib (Dual stage - 2nd step) malfunction

Spiral cable sub-assy malfunction

Airbag sensor assy center malfunction
Horn button assy (D squib, Dual stage - 2nd step)

Spiral cable sub-assy

Airbag sensor assy center

Cowl wire
WIRING DIAGRAM
05IWA-01

H01001
C91344H41439
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Orange
A
FE
DC B
D2- D2+
D Squib
(Dual stage
- 2nd step)
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1417
1607 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 for at least 90 seconds.
(c) Disconnect the connectors from the horn button assy.
(d) Check that the spiral cable sub-assy connectors (on the horn button assy side) are not damaged.
OK:
The lock button is not disengaged, or the claw of the lock is not deformed or damaged.
NG REPLACE SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-26)
OK
2 CHECK D SQUIB CIRCUIT(DUAL STAGE - 2ND STEP, AIRBAG SENSOR ASSY
CENTER - HORN BUTTON ASSY)
(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
D2+ - D2-Always1 MW or Higher
NG Go to step 5
OK