TOYOTA AVALON 2001 Service Repair Manual

AB0118AB0119R13006H09530H09529
ACCON
or
E1
TcDTC B1141/33
DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-455
611 Author
: Date
:
INSPECTION PROCEDURE
1 Is DTC B1141/33 out put?
CHECK:
(a) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(b) Clear the DTC stored in memory
(See step 5 on page DI-349).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(e) Check the DTC (See page DI-349).
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
NO The malfunctioning part can now be considered
normal. To make sure of this, use the simulation
method to check.
YES
2 Is connector of side airbag sensor assembly (LH) properly connected?
3 Prepare for inspection (See step 1 on page DI-475).

H01058H01050
H01010
H01166
Airbag
Sensor
Assembly
(-)(+)
SSL+ Airbag Sensor
Assembly
ESL SSL+
ESL
Side Airbag Sensor
Assembly (LH)u"
DI-456
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
612 Author
: Date
:
4 Check wire harness.
PREPARATION:
(a) Disconnect the side airbag sensor assembly (LH).
(b) Using a service wire, connect SSL+ and ESL of the con-
nector (on the side airbag sensor assembly side) between
the side airbag sensor assembly (LH) and the airbag sen-
sor assembly.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the side airbag sensor assembly (LH) and the airbag
sensor assembly, measure the resistance between SSL+ and
ESL.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween side airbag sensor assembly (LH) and air-
bag sensor assembly.
OK

H01010H01059H01051H01167
Airbag
Sensor
Assembly
(-)(+) Side Airbag Sensor
Assembly (LH)
VUPL Airbag Sensor
Assembly
VUPL
SSL-
SSL-
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-457
613 Author
: Date
:
5 Check wire harness.
PREPARATION:
Using a service wire, connect VUPL and SSL- of the connector
(on the side airbag sensor assembly side) between the side air-
bag sensor assembly (LH) and the airbag sensor assembly.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the side airbag sensor assembly (LH) and the airbag
sensor assembly, measure the resistance between VUPL and
SSL-.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween side airbag sensor assembly (LH) and air-
bag sensor assembly.
OK

H01052H01008H01168
Airbag
Sensor
Assembly SIde Airbag Sensor Assembly
(LH)
Airbag Sensor Assembly
VUPL
(-) (+)SSL+
SSL-
H01008
H01053AB0119H08271
Airbag
Sensor
Assembly Side Airbag Sensor
Assembly (LH)
Airbag Sensor Assembly
VUPL
(-)
(+) SSL+ SSL-ESLON
DI-458
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
614 Author
: Date
:
6 Check wire harness (to ground).
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the side airbag sensor assembly (LH) and the airbag
sensor assembly, measure the resistance between body
ground and each of SSL+, VUPL and SSL-.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween side airbag sensor assembly (LH) and air-
bag sensor assembly.
OK
7 Check wire harness (to B+).
CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the airbag sensor assembly side)
between the side airbag sensor assembly (LH) and the
airbag sensor assembly, measure the voltage between
body ground and each of SSL+, ESL, VUPL and SSL-.
OK:
Voltage: 0 V
NG Repair or replace harness or connector be-
tween side airbag sensor assembly (LH) and air-
bag sensor assembly.
OK

AB0118
R13006AB0119H01007
H01066H01170
Airbag
Sensor
Assembly Side Airbag Sensor Assembly (LH)
E1
Tc ACCON
or
" u
DTC B1141/33 " u
DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-459
615 Author
: Date
:
8 Is DTC B1141/33 out put again?
PREPARATION:
(a) Connect the connector to the side airbag sensor assem-
bly (LH).
(b) Connect the connector to the airbag sensor assembly.
(c) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(b) Clear the DTC stored in memory
(See step 5 on page DI-349).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(e) Check the DTC (See page DI-349).
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
YES Go to step 9.
NO
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

AB0118
R13006AB0119H01007
H01066H01170
Airbag
Sensor
Assembly
Side Airbag Sensor
Assembly (RH)
E1
Tc ACC
ON
or
DTC B1141/33 " u
DLC1
DI-460
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
616 Author
: Date
:
9 Check airbag sensor assembly.
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Disconnect the side airbag sensor (LH) from the connec-
tor and connect the side airbag sensor (RH) to the con-
nector.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(b) Clear the DTC stored in memory
(See step 5 on page DI-349).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(e) Check the DTC (See page DI-349).
OK:
DTC B1141/33 is not output.
HINT:
Codes other than code B1141/33 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0118
R13006AB0119H01012
H01065H01164
Airbag
Sensor
Assembly Side Airbag Sensor
Assembly (LH)
E1 TcACC
ON
or
DTC B1140/32 " u
DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-461
617 Author
: Date
:
10 Check side airbag sensor assembly (LH).
PREPARATION:
(a) Turn the ignition switch to LOCK.
(b) Disconnect negative (-) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the side airbag sensor (LH) to the connector that
the side airbag sensor (RH) was connected to.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(b) Clear the DTC stored in memory
(See step 5 on page DI-349).
(c) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(d) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(e) Check the DTC (See page DI-349).
OK:
DTC B1140/32 is not output.
HINT:
Codes other than code B1140/32 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag sensor assembly (LH).
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.

H02751
Airbag Sensor Assembly
Front Airbag Sensor (RH)
+SR
-SR
C69
20
BR-W 2
1 SR+
SR-B-W
C6 DI-462
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
618 Author
: Date
:
2001 AVALON (RM808U)
DTC B1156/B1157/15 Front Airbag Sensor (RH) Malfunction
CIRCUIT DESCRIPTION
The front airbag sensor (RH) circuit consists of the airbag sensor assembly and front airbag sensor (RH).
For details of the function of each component, see OPERATION on page RS-3.
DTC B1156/B1157/15 is recorded when malfunction is detected in the front airbag sensor (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B1156/B1157/15
Front airbag sensor (RH) malfunction

Front airbag sensor (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
DI6N2-01

H03363AB0119H01370
H10968
Airbag
Sensor
Assembly
Front Airbag
Sensor (RH)
(+)SR+
(-)
SR- Airbag Sensor
Assembly
ON
H03361H01370H10969
Airbag
Sensor
Assembly
Front Airbag
Sensor (RH)
(+)SR+
(-)
SR- Airbag Sensor
Assembly
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-463
619 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-475).
2 Check wire harness (to B+).
CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the airbag sensor assembly side)
between the front airbag sensor (RH) and the airbag sen-
sor assembly, measure the voltage between body ground
and each of SR+ and SR-.
OK:
Voltage: Below 1 V
NG Repair or replace harness or connector be-
tween front airbag sensor (RH) and airbag sen-
sor assembly.
OK
3 Check wire harness (to ground).
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the front airbag sensor (RH) and the airbag sensor as-
sembly, measure the resistance between body ground and
each of SR+ and SR-.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween front airbag sensor (RH) and airbag sen-
sor assembly.
OK

H03356H01370H10970
Airbag
Sensor
Assembly Front Airbag Sensor (RH)
(+)SR+
(-)
SR- Airbag Sensor
Assembly
H09521H03356 H09526H10971
Front Airbag
Sensor (RH)
Airbag
Sensor
Assembly
(+)SR+ Airbag Sensor
Assembly
(-)
SR- SR+SR-
DI-464
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
620 Author
: Date
:
2001 AVALON (RM808U)
4 Check wire harness.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the front airbag sensor (RH) and the airbag sensor as-
sembly, measure the resistance between SR+ and SR-.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween front airbag sensor (RH) and airbag sen-
sor assembly.
OK
5 Check wire harness.
PREPARATION:
Using a service wire, connect SR+ and SR- of the connector
(on the front airbag sensor (RH) side) between the airbag sen-
sor assembly and the front airbag sensor (RH).
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the front airbag sensor (RH) and the airbag sensor as-
sembly, measure the resistance between SR+ and SR-.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween front airbag sensor (RH) and airbag sen-
sor assembly.
OK