Toyota Corolla (2004+). Manual - part 72
05-532
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
6
CHECK SIDE AIRBAG SENSOR ASSY(LH) CIRCUIT(AIRBAG SENSOR ASSY
CENTER - SIDE AIRBAG SENSOR ASSY LH)
(a) For the connector (on the airbag sensor assy center side)
Side
between the airbag sensor assy center and the side air-
Airbag
bag sensor assy (LH), measure the resistance between
Sensor
Airbag
VUPL and ESL, and between FSL and SSL-.
Sensor
Assy LH
Assy
OK:
Center
Resistance: 1M W or Higher
SSL-
ESL
NG REPAIR OR REPLACE INSTRUMENT PANEL
H01010
FSL
VUPL
C81676
H40447
WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
SIDE AIRBAG SENSOR ASSY LH)
OK
7
CHECK SIDE AIRBAG SENSOR ASSY(LH) CIRCUIT(TO B+)(AIRBAG SENSOR
ASSY CENTER - SIDE AIRBAG SENSOR ASSY LH)
(a) Connect the negative (-) terminal cable to the battery,
Side
and wait at least for 2 seconds.
Airbag
(b) Turn the ignition switch to ON.
Sensor
Airbag
(c)
For the connector (on the airbag sensor assy center side)
Assy LH
Sensor
Assy
between the airbag sensor assy center and the side air-
Center
bag sensor assy (LH), measure the voltage between
each terminal of VUPL, SSL- and FSL, and body ground.
OK:
SSL-
Voltage: Below 1V
ESL
H01010
FSL
VUPL
C81676
H40447
NG REPAIR OR REPLACE INSTRUMENT PANEL
WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
SIDE AIRBAG SENSOR ASSY LH)
OK
05-533
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
8
CHECK SIDE AIR BAG SENSOR ASSY LH
SST
09843-18040
(a) Turn the ignition switch to LOCK.
Side
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag
Airbag
tery, and wait at least for 90 seconds.
Sensor
Assy RH
Sensor
(c)
Connect the airbag sensor assy center connector.
Assy
(d) Interchange the side airbag sensor assy (LH) and RH and
Center
connect the connectors to them.
(e) Connect the negative (-) terminal cable to the battery,
DLC3
DTC B1140/32
and wait at least for 2 seconds.
(f)
Turn the ignition switch to ON, and wait at least for 20 se-
conds.
DTC B1141/33
(g) Clear the DTC stored in memory (See page 05-424).
CG
Tc
(h) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
H01007
H10600
H01065
H01066
H41931
(i)
Turn the ignition switch to ON, and wait at least for 20 se-
conds.
(j)
Check the DTC (See page 05-424).
OK:
(A): DTC B1140/32 is not output.
(B): DTC B1141/33 is not output.
NG(A) REPLACE SIDE AIR BAG SENSOR ASSY LH
NG(B) REPLACE AIR BAG SENSOR ASSY CENTER
OK
9
USE SIMULATION METHOD TO CHECK
NG Go to step 1
OK
REPLACE ALL SRS COMPONENTS INCLUDING THE WIRE HARNESS
05-534
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
055ZA-04
DTC
B1153/25
SEAT POSITION AIRBAG SENSOR
MALFUNCTION
CIRCUIT DESCRIPTION
The seat position sensor circuit consists of the airbag sensor assy center and seat position sensor.
DTC B1153/25 is recorded when a malfunction is detected in the seat position sensor circuit.
DTC No.
DTC Detecting Condition
Trouble Area
F Short circuit between LSP+ wire harness and LSP- wire
harness (to B+)
F Seat position airbag sensor
F Short circuit between LSP+ wire harness and LSP- wire
F Airbag sensor assy center
B1153/25
harness (to ground)
F Wire harness (Seat position airbag sensor - Front seat inner
F Open circuit in LSP+ wire harness or LSP- wire harness
belt assy)
F Seat position airbag sensor malfunction
F Instrument panel wire No.3
F Airbag sensor assy center malfunction
WIRING DIAGRAM
B6
Seat Position Airbag Sensor
Airbag Sensor Assy Center
3
4
G-W
A12
LSP+
4
5
R-B
A12
LSP-
H42003
05-535
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
INSPECTION PROCEDURE
1
CHECK SEAT POSITION AIR BAG SENSOR
SST
09843-18040
(a) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
Seat
Position
(b) Clear the DTC stored in memory (See page 05-424).
Airbag
Airbag
(c)
Turn the ignition switch to LOCK, and wait at least for 20
Sensor
Sensor
seconds.
Assy
(d) Turn the ignition switch to ON, and wait at least for 20 se-
Center
conds.
(e) Check the DTC (See page 05-424).
DLC3
DTC B1153/25
OK:
DTC B1153/25 is not output.
HINT:
Codes other than code B1153/25 may be output at this time, but
CG Tc
they are not relevant to this check.
H02757
H10600
C91522
H41990
OK USE SIMULATION METHOD TO CHECK
NG
2
CHECK AIRBAG SENSOR ASSY CENTER CONNECTOR
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.
(c)
Check that the connector is properly connected to the airbag sensor assy center.
NG CONNECT CONNECTORS
OK
3
CHECK SEAT POSITION AIRBAG SENSOR CONNECTOR
(a) Check that the connector is properly connected to the seat position airbag sensor.
NG CONNECT CONNECTORS
OK
05-536
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
4
CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT (OPEN)(AIRBAG SENSOR
ASSY CENTER - SEAT POSITION AIRBAG SENSOR)
SST
09843-18040
(a) Disconnect the connectors between the airbag sensor
Seat
assy center and the seat position airbag sensor.
Position
Airbag
(b) Using a service wire, connect LSP+ and LSP- of the con-
Airbag
Sensor
Sensor
nector (on the seat position airbag sensor side) between
Assy
the airbag sensor assy center and the seat position airbag
Center
sensor.
(c)
For the connector (on the airbag sensor assy center side)
between the airbag sensor assy center and the seat posi-
LSP-
LSP+
tion airbag sensor, measure the resistance between
LSP+ and LSP-.
OK:
Resistance: Below 1
W
H03353
C91524
C91525
H41988
NG Go to step 10
OK
5
CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT (TO GROUND)(AIRBAG
SENSOR ASSY CENTER - SEAT POSITION AIRBAG SENSOR)
(a) Release the service wire of the connector (on the seat
position airbag sensor side) between the seat position air-
Seat
bag sensor and the airbag sensor assy center.
Position
Airbag
(b) For the connector (on the airbag sensor assy center side)
Airbag
Sensor
between the airbag sensor assy center and the seat posi-
Sensor
Assy
tion airbag sensor, measure the resistance between body
Center
ground and each of LSP+ and LSP-.
OK:
LSP-
Resistance: 1 M W or Higher
LSP+
H03355
C91525
H41989
NG Go to step 11
OK
05-537
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
6
CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT(AIRBAG SENSOR ASSY
CENTER - SEAT POSITION AIRBAG SENSOR)
(a) For the connector (on the airbag sensor assy center side)
between the airbag sensor assy center and the seat posi-
Seat
tion airbag sensor, measure the resistance between
Position
Airbag
LSP+ and LSP-.
Airbag
Sensor
OK:
Sensor
Assy
Resistance: 1 M W or Higher
Center
LSP-
LSP+
H03355
C91525
H41989
NG Go to step 12
OK
7
CHECK SEAT POSITION AIRBAG SENSOR CIRCUIT (TO B+)(AIRBAG SENSOR
ASSY CENTER - SEAT POSITION AIRBAG SENSOR)
(a) Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
Seat
(b) Turn the ignition switch to ON.
Position
Airbag
(c)
For the connector (on the airbag sensor assy center side)
Airbag
Sensor
between the airbag sensor assy center and the seat posi-
Sensor
Assy
tion airbag sensor, measure the voltage between the
Center
body ground and each of LSP+ and LSP-.
OK:
LSP-
Voltage: Below 1 V
LSP+
H03355
C91525
H41989
NG Go to step 13
OK
05-538
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
8
CHECK SEAT POSITION AIR BAG SENSOR
SST
09843-18040
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
Seat
Position
tery, and wait at least for 90 seconds.
Airbag
Airbag
(c)
Connect the connectors of the seat position airbag sensor
Sensor
Sensor
and the airbag sensor assy center.
Assy
(d) Connect the negative (-) terminal cable to the battery,
Center
and wait at least for 2 seconds.
(e) Turn the ignition switch to ON, and wait at least for 20 se-
DLC3
DTC B1153/25
conds.
(f)
Clear the DTC stored in memory (See page 05-424).
(g) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
CG Tc
(h) Turn the ignition switch to ON, and wait at least for 20 se-
H02757
H41990
conds.
H10600
C91522
(i)
Check the DTC (See page 05-424).
OK:
DTC D1153/25 is not output.
HINT:
Codes other that code B1153/25 may be output at this time, but
they are not relevant to this check.
NG REPLACE SEAT POSITION AIR BAG SENSOR
OK
USE SIMULATION METHOD TO CHECK
05-539
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
9
CHECK AIR BAG SENSOR ASSY CENTER
SST
09843-18040
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
Seat
Position
tery, and wait at least for 90 seconds.
Airbag
Airbag
(c)
Connect the connector of a new seat position airbag sen-
Sensor
Sensor
sor.
Assy
(d) Connect the negative (-) terminal cable to the battery,
Center
and wait at least for 2 seconds.
(e) Turn the ignition switch to ON, and wait at least for 20 se-
DLC3
DTC B1153/25
conds.
(f)
Clear the DTC stored in memory (See page 05-424).
(g) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
CG Tc
(h) Turn the ignition switch to ON, and wait at least for 20 se-
H02757
H41990
conds.
H10600
C91522
(i)
Check the DTC (See page 05-424).
OK:
DTC D1153/25 is not output.
HINT:
Codes other that code B1153/25 may be output at this time, but
they are not relevant to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
USE SIMULATION METHOD TO CHECK
05-540
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
10
CHECK WIRE HARNESS(SEAT POSITION AIRBAG SENSOR - FRONT SEAT
INNER BELT ASSY)
SST
09843-18040
(a) Disconnect the front seat wire connector on the airbag
Front Seat Wire
sensor assy center side.
Seat
(b) For the front seat wire connector (on the airbag sensor
Position
Airbag
assy center side) between the airbag sensor assy center
Airbag
Sensor
Sensor
and the seat position airbag sensor, measure the resis-
Assy
tance between LSP+ and LSP-.
Center
OK:
LSP+
Resistance: Below 1
W
NG REPAIR OR REPLACE WIRE HARNESS(SEAT
LSP-
POSITION SENSOR - FRONT SEAT INNER
H03352
BELT ASSY)
C91524
C91530
H42101
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
FRONT SEAT INNER BELT ASSY)
11
CHECK WIRE HARNESS(SEAT POSITION AIRBAG SENSOR - FRONT SEAT
INNER BELT ASSY)
(a) Disconnect the front seat wire connector on the airbag
Front Seat Wire
sensor assy center side.
Seat
(b) For the front seat wire connector (on the airbag sensor
Position
Airbag
assy center side) between the airbag sensor assy center
Airbag
Sensor
and the seat position sensor, measure the resistance be-
Sensor
Assy
tween body ground and each of LSP+ and LSP-.
Center
OK:
Resistance: 1 M W or Higher
LSP+
NG REPAIR OR REPLACE WIRE HARNESS(SEAT
H03354
LSP-
POSITION SENSOR - FRONT SEAT INNER
C91530
H42102
BELT ASSY)
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
FRONT SEAT INNER BELT ASSY)
05-541
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
12
CHECK WIRE HARNESS(SEAT POSITION AIRBAG SENSOR - FRONT SEAT
INNER BELT ASSY)
(a) Disconnect the negative (-) terminal cable from the bat-
Front Seat Wire
tery, and wait at least for 90 seconds.
Seat
(b) Disconnect the front seat wire connector on the airbag
Position
Airbag
sensor assy center side.
Airbag
Sensor
(c)
Connect the negative (-) terminal cable to the battery,
Sensor
Assy
and wait at least for 2 seconds.
Center
(d) Turn the ignition switch to ON, and wait at least for 60 se-
conds.
(e) For the front seat wire connector (on the airbag sensor
LSP+
assy center side) between the front seat inner belt assy
and the seat position airbag sensor, measure the voltage
between body ground and each of LSP+ and LSP-.
OK:
H03354
LSP-
C91530
H42102
Voltage: Below 1 V
NG REPAIR OR REPLACE WIRE HARNESS(SEAT
POSITION AIRBAG SENSOR - FRONT SEAT IN-
NER BELT ASSY)
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
FRONT SEAT INNER BELT ASSY)
13
CHECK WIRE HARNESS(SEAT POSITION AIRBAG SENSOR - FRONT SEAT
INNER BELT ASSY)
(a) Turn the ignition switch to LOCK.
Front Seat Wire
(b) For the front seat wire connector (on the airbag sensor
Seat
assy center side) between the airbag sensor assy center
Position
Airbag
and the seat position sensor, measure the resistance be-
Sensor
Sensor
tween LSP+ and LSP-.
Assy
OK:
Center
Resistance: 1 M W or Higher
LSP+
NG REPAIR OR REPLACE WIRE HARNESS(SEAT
H03354
LSP-
POSITION AIRBAG SENSOR - FRONT SEAT IN-
C91530
H42102
NER BELT ASSY)
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE NO.3(AIRBAG SENSOR ASSY CENTER -
FRONT SEAT INNER BELT ASSY)
05-542
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
057US-02
DTC
B1156/15
FRONT AIRBAG SENSOR (RH)
MALFUNCTION
DTC
B1157/15
FRONT AIRBAG SENSOR (RH)
MALFUNCTION
CIRCUIT DESCRIPTION
The airbag front RH sensor circuit consists of the airbag sensor assy center and airbag front RH sensor.
DTC B1156/B1157/15 is recorded when a malfunction is detected in the airbag front RH sensor circuit.
DTC No.
DTC Detecting Condition
Trouble Area
F Airbag front RH sensor
F Airbag sensor assy center
B1156/B1157/15
F Airbag front RH sensor malfunction
F Instrument panel wire
F Engine room main wire
WIRING DIAGRAM
A6
Airbag Front RH Sensor
Airbag Sensor Assy Center
1
9
B-W
B-W
+SR
IA1
A13
+SR
2
2
20
BR-W
BR-W
-SR
IA1
A13
-SR
1
H02750
05-543
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
INSPECTION PROCEDURE
1
CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO B+)(AIRBAG SENSOR ASSY
CENTER - AIRBAG FRONT RH SENSOR)
(a) Disconnect the negative (-) terminal cable from the bat-
Airbag
tery, and wait at least for 90 seconds.
Airbag
Sensor
(b) Disconnect the connectors between the airbag front RH
Front RH
Assy
sensor and the airbag sensor assy center.
Sensor
Center
(c)
Connect the negative (-) terminal cable to the battery,
and wait at least for 2 seconds.
(d) Turn the ignition switch to ON.
(e) For the connector (on the airbag sensor assy center side)
+SR
between the airbag front RH sensor and the airbag sen-
sor assy center, measure the voltage between body
ground and each of +SR and -SR.
OK:
-SR
Voltage: Below 1 V
H03355
C81408
H40069
NG Go to step 6
OK
2
CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT (TO GROUND)(AIRBAG SENSOR
ASSY - AIRBAG FRONT RH SENSOR)
(a) Turn the ignition switch to LOCK.
Airbag
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag
Sensor
tery, and wait at least for 90 seconds.
Front RH
Assy
(c)
For the connector (on the airbag sensor assy center side)
Sensor
Center
between the airbag front RH sensor and the airbag sen-
sor assy center, measure the resistance between body
ground and each of +SR and -SR.
OK:
+SR
Resistance: 1 M W or Higher
-SR
H03355
C81408
H40069
NG Go to step 7
OK
05-544
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
3
CHECK FRONT AIRBAG SENSOR (RH) CIRCUIT(OPEN)(AIRBAG SENSOR ASSY
CENTER - AIRBAG FRONT RH SENSOR)
SST
09843-18040
(a) Using a service wire, connect +SR and -SR of the con-
Airbag
nector (on the airbag front RH sensor side) between the
Airbag
Sensor
airbag front RH sensor and the airbag sensor assy center.
Front RH
Assy
(b) For the connector (on the airbag sensor assy center side)
Sensor
Center
between the airbag front RH sensor and the airbag sen-
sor assy center, measure the resistance between +SR
and -SR.
OK:
+SR
Resistance: Below 1
W
-SR
H03353
H08016
C81408
H41800
NG Go to step 8
OK
4
INSPECT AIR BAG FRONT RH SENSOR
(a) For the connector of the airbag front RH sensor, measure
the resistance between +SR and -SR.
OK:
Resistance: 820
W
+SR
-SR
C54743
H40071
NG REPLACE AIR BAG FRONT RH SENSOR
OK
05-545
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
5
CHECK AIR BAG SENSOR ASSY CENTER
SST
09843-18040
(a) Disconnect the negative (-) terminal cable from the bat-
tery, and wait at least for 90 seconds.
Airbag
Airbag
(b) Connect the airbag front RH sensor connector and airbag
Sensor
Front RH
sensor assy center connector.
Assy
Sensor
(c)
Connect the negative (-) terminal cable to the battery,
Center
and wait at least for 2 seconds.
(d) Turn the ignition switch to ON, and wait at least for 20 se-
conds.
DLC3
DTC B1156/B1157/15
(e) Clear the DTC stored in memory (See page 05-424).
(f)
Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(g) Turn the ignition switch to ON, and wait at least for 20 se-
CG
Tc
conds.
H02757
H40072
(h) Check the DTC (See page 05-424).
H10600
H01063
OK:
DTC B1156/B1157/15 is not output.
HINT:
Codes other than code B1156/B1157/15 may be output at this
time, but they are not relevant to this check.
NG REPLACE AIR BAG SENSOR ASSY CENTER
OK
USE SIMULATION METHOD TO CHECK
05-546
DIAGNOSTICS
- SUPPLEMENTAL RESTRAINT SYSTEM (April, 2003)
6
CHECK ENGINE ROOM MAIN WIRE HARNESS (TO B+)(CONNECTOR - AIRBAG
FRONT RH SENSOR)
(a) Turn the ignition switch to LOCK.
(b) Disconnect the negative (-) terminal cable from the bat-
Airbag
Airbag
tery, and wait at least for 90 seconds.
Sensor
Front RH
(c)
Disconnect the connector between the engine room main
Assy
Sensor
wire and the instrument panel wire.
Center
(d) Connect the negative (-) terminal cable to the battery,
Engine Room
and wait at least for 2 seconds.
Main Wire
(e) Turn the ignition switch to ON.
(f)
For the engine room main wire connector (on the airbag
sensor assy center side) between the airbag sensor assy
-SR
+SR
center and the airbag front RH sensor, measure the volt-
age between body ground and each of +SR and -SR.
OK:
H41804
Voltage: Below 1 V
NG REPAIR OR REPLACE ENGINE ROOM MAIN
WIRE
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
7
CHECK ENGINE ROOM MAIN WIRE HARNESS (TO GROUND)(CONNECTOR -
AIRBAG FRONT RH SENSOR)
(a) Disconnect the connectors between the engine room
main wire and the instrument panel wire.
Airbag
Airbag
(b) For the engine room main wire connector (on the airbag
Sensor
Front RH
sensor assy center side) between the airbag sensor assy
Assy
Sensor
center and the airbag front RH sensor, measure the resis-
Center
tance between body ground and each of +SR and -SR.
Engine Room
OK:
Main Wire
Resistance: 1 M W or Higher
-SR
+SR
H41804
NG REPAIR OR REPLACE ENGINE ROOM MAIN
WIRE
OK
REPAIR OR REPLACE INSTRUMENT PANEL WIRE