TOYOTA HIGHLANDER 2001 Service Repair Manual
Manufacturer: TOYOTA, Model Year: 2001, Model line: HIGHLANDER, Model: TOYOTA HIGHLANDER 2001Pages: 2572, PDF Size: 34.8 MB
Page 911 of 2572
H41440H41440H43066
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Cowl Wire
A
B C
D FE
D+
D-A20
H01000
C89244H41479
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
D+
D-B C D FEA
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1237
1427 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
5 CHECK COWL WIRE
(a) Disconnect the cowl wire connector from the spiral cable
sub-assy .
HINT:
The activation prevention mechanism of connector ºBº has al-
ready been released.
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A20-1 (D+) - A20-2 (D-)Always1 MW or Higher
NG REPAIR OR REPLACE COWL WIRE
OK
6 CHECK SPIRAL CABLE SUB-ASSY
(a) Release the activation prevention mechanism built into
connector ºDº (see page 05-1207).
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - D-Always1 MW or Higher
NG REPLACE SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-26)
0K
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 912 of 2572
H01001
C89244H41475
D Squib
Airbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
FE
DC BA
D+
D-
05-1238
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1428 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0101/14 OPEN IN D SQUIB CIRCUIT
CIRCUIT DESCRIPTION
The D squib 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 B0101/14 is recorded when an open circuit is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0101/14
Open circuit in D+ wire harness or D- wire harness of D
squib
D squib malfunction
Spiral cable sub-assy malfunction
Airbag sensor assy center malfunctionHorn button assy (D squib)
Spiral cable sub-assy
Airbag sensor assy center
Cowl wire
WIRING DIAGRAM
see page 05-1233.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER - HORN BUTTON
ASSY)
(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 horn button assy.
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - D-AlwaysBelow 1 W
NG Go to step 4
OK
0525E-04
Page 913 of 2572
H01002
H10600C89252W02044H44124
D SquibAirbag
Sensor
Assy
Center
D- D+Spiral
Cable
Sub-assy
Color: Black
TC CG
DLC3DTC B0101/14 Service Wire
FE
DC
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1239
1429 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 D+ and D- of connector ºEº.
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 B0101/14 is not output.
HINT:
Codes other than code B0101/14 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 914 of 2572
H01003H10600W02044H01003H10600W02044H40036
D Squib
DLC3DTC B0101/14
CG
TCAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
FD
EC
05-1240
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1430 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK HORN BUTTON ASSY(D SQUIB)
(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 ºEº.
(d) Connect the connectors to the horn button assy.
(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 B0101/14 is not output.
HINT:
Codes other than code B0101/14 may be output at this time, but
they are not related to this check.
NG REPLACE HORN BUTTON ASSY
(SEE PAGE 60-17)
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 915 of 2572
H41440H41440H43066
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Cowl Wire
FE DC
BA
D+
D- A20
H01000
C89244H41479
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black FE
DC BA
D+
D-
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1241
1431 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK COWL WIRE
(a) Disconnect the cowl wire connector from the spiral cable
sub-assy .
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A20-1 (D+) - A20-2 (D-)AlwaysBelow 1 W
NG REPAIR OR REPLACE COWL WIRE
OK
5 CHECK SPIRAL CABLE SUB-ASSY
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - D-AlwaysBelow 1 W
NG REPLACE SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-26)
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 916 of 2572
H01001
C89244H41475
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
D+A
B C D E F
D-
05-1242
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1432 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0102/11 SHORT IN D SQUIB CIRCUIT (TO GROUND)
CIRCUIT DESCRIPTION
The D squib 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 B0102/11 is recorded when a short to ground is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0102/11
Short circuit in D squib wire harness (to ground)
D squib malfunction
Spiral cable sub-assy malfunction
Airbag sensor assy center malfunctionHorn button assy (D squib)
Spiral cable sub-assy
Airbag sensor assy center
Cowl wire
WIRING DIAGRAM
see page 05-1233.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER - HORN BUTTON
ASSY)
(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 horn button assy.
(d) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - Body groundAlways1 MW or Higher
D- - Body groundAlways1 MW or Higher
NG Go to step 4
OK
0525F-20
Page 917 of 2572
H01002
C89252
H10600 C91338H44123
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
CG
TC DLC3
DTC B0102/11
D+
D-
Service Wire
C D E
F
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1243
1433 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 D+ and D- of connector ºEº.
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 B0102/11 is not output.
HINT:
Codes other than code B0102/11 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 918 of 2572
H01003H10600W02042H01003H10600W02042H40037
D Squib
DLC3DTC B0102/11
CG
TCAirbag
Sensor
Assy
Center
Spiral
Cable
Sub-assy
C D E F
05-1244
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1434 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
3 CHECK HORN BUTTON ASSY(D SQUIB)
(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 ºEº.
(d) Connect the connectors to the horn button assy.
(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 B0102/11 is not output.
HINT:
Codes other than code B0102/11 may be output at this time, but
they are not related to this check.
NG REPLACE HORN BUTTON ASSY
(SEE PAGE 60-17)
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 919 of 2572
H41440H41440H43066
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Cowl Wire
A
B
C D
FE
D+
D-
A20
H01000
C89244H41479
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
D+A
B C D FE
D-Cowl Wire
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
05-1245
1435 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
4 CHECK COWL WIRE
(a) Disconnect the cowl wire connector from the spiral cable
sub-assy .
(b) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
A20-1 (D+) -
Body groundAlways1 MW or Higher
A20-2 (D-) -
Body groundAlways1 MW or Higher
NG REPAIR OR REPLACE COWL WIRE
OK
5 CHECK SPIRAL CABLE SUB-ASSY
(a) Measure the resistance according to the value(s) in the
table below.
Standard:
Tester connectionConditionSpecified condition
D+ - Body groundAlways1 MW or Higher
D- - Body groundAlways1 MW or Higher
NG REPLACE SPIRAL CABLE SUB-ASSY
(SEE PAGE 60-26)
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 920 of 2572
H01001
C89244H41475
D SquibAirbag
Sensor
Assy
CenterSpiral
Cable
Sub-assy
Color: Black
D+A
B C D E F
D-
05-1246
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1436 Author: Date:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
DTC B0103/12 SHORT IN D SQUIB CIRCUIT (TO B+)
CIRCUIT DESCRIPTION
The D squib 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 B0103/12 is recorded when a short to B+ is detected in the D squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0103/12
Short circuit in D squib wire harness (to B+)
D squib malfunction
Spiral cable sub-assy malfunction
Airbag sensor assy center malfunctionHorn button assy (D squib)
Spiral cable sub-assy
Airbag sensor assy center
Cowl wire
WIRING DIAGRAM
see page 05-1233.
INSPECTION PROCEDURE
1 CHECK D SQUIB CIRCUIT(AIRBAG SENSOR ASSY CENTER - HORN BUTTON
ASSY)
(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 horn button assy.
(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
D+ - Body groundIgnition switch ONBelow 1 V
D- - Body groundIgnition switch ONBelow 1 V
NG Go to step 4
OK
0525G-17