2001 TOYOTA AVALON Service Repair Manual

H01018AB0118AB0119R13006H01072H01234
"u
E1
Tc ACC ON
orAirbag
Sensor
Assembly Squib (LH)
DTC B0118/46 DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-417
573 Author
: Date
:
2001 AVALON (RM808U)
4 Check side squib (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 assembly (LH) connector.
(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 B0118/46 is not output.
HINT:
Codes other than code B0118/46 may be output at this time, but
they are not relevant to this check.
NG Replace side airbag 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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.

H01454
P/T Squib (RH)Airbag Sensor Assembly
PR+
PR- 1
26 5
C7 Y-B
Y
C7 DI-418
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
574 Author
: Date
:
2001 AVALON (RM808U)
DTC B0130/63 Short in P/T Squib (RH) Circuit
CIRCUIT DESCRIPTION
The P/T squib (RH) circuit consists of the airbag sensor assembly and seat belt pretensioner (RH).
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B0130/63 is recorded when a short is detected in the P/T squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0130/63

Short circuit between PR+ wire harness and PR- wire
harness of squib

P/T squib (RH) malfunction

Airbag sensor assembly malfunction
Seat belt pretensioner (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
DI4D0-03

H01019H02141H02203
P/T Squib (RH)Airbag
Sensor
Assembly
PR+
PR-
(+) (-)
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-419
575 Author
: Date
:
2001 AVALON (RM808U)
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-475).
2 Check P/T squib (RH) circuit.
PREPARATION:
Release the airbag activation prevention mechanism of the
connector (on the airbag sensor assembly side) between the
airbag sensor assembly and the seat belt pretensioner (RH)
(See page DI-349).
CHECK:
For the connector (on the seat belt pretensioner side) between
the seat belt pretensioner (RH) and the airbag sensor assem-
bly, measure the resistance between PR+ and PR-.
OK:
Resistance: 1 MW or Higher
NG Repair or replace harness or connector be-
tween seat belt pretensioner (RH) and airbag
sensor assembly.
OK

H01020AB0118AB0119R13006H01082H07485
P/T Squib (RH)Airbag
Sensor
Assembly
ACC
or
DTC B0130/63ON " u
E1
Tc DLC1
DI-420
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
576 Author
: Date
:
2001 AVALON (RM808U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) 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 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 B0130/63 is not output.
HINT:
Codes other than code B0130/63 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H01021AB0118AB0119R13006H01082H01214
"u
E1 TcACC ON
orAirbag
Sensor
Assembly P/T Squib (RH)
DTC B0130/63 DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-421
577 Author
: Date
:
2001 AVALON (RM808U)
4 Check P/T squib (RH).
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 seat belt pretensioner (RH) connector.
(d) Connect negative (-) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn the ignition switch to LOOK, and wait at least for 20
second.
(b) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(c) Clear the DTC stored in memory (See page DI-349).
(d) Turn the ignition switch to LOCK, and wait at least for 20
seconds.
(e) Turn the ignition switch to ACC or ON, and wait at least
for 20 seconds.
(f) Check the DTC (See page DI-349).
OK:
DTC B0130/63 is not output.
HINT:
Codes other than code B0130/63 may be output at this time, but
they are not relevant to this check.
NG Replace seat belt pretensioner (RH).
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.

H01019H02141H02205
P/T Squib (RH)Airbag
Sensor
Assembly
PR-
(+) (-) PR+
DI-422
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
578 Author
: Date
:
2001 AVALON (RM808U)
DTC B0131/64 Open in P/T Squib (RH) Circuit
CIRCUIT DESCRIPTION
The P/T squib circuit (RH) consists of the airbag sensor assembly and seat belt pretensioner (RH).
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-3.
DTC B0131/64 is recorded when an open is detected in the P/T squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0131/64

Open circuit in PR+ wire harness or PR- wire harness of
squib

P/T squib (RH) malfunction

Airbag sensor assembly malfunction
Seat belt pretensioner (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI-418.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-475).
2 Check P/T squib (RH) circuit.
CHECK:
For the connector (on the seat belt pretensioner side) between
the seat belt pretensioner (RH) and the airbag sensor assem-
bly, measure the resistance between PR+ and PR-.
OK:
Resistance: Below 1 W
NG Repair or replace harness or connector be-
tween seat belt pretensioner (RH) and airbag
sensor assembly.
OK
DI4D1-03

H01020H02139AB0118AB0119R13006H01083H02206
P/T Squib (RH)Airbag
Sensor
Assembly
PR+
PR-ACC
or
DTC B0131/64
" u
E1 TcON
DLC1
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-423
579 Author
: Date
:
2001 AVALON (RM808U)
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect PR+ and PR- of the con-
nector (on the seat belt pretensioner side) between the
seat belt pretensioner (RH) and the airbag sensor assem-
bly.
(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 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 B0131/64 is not output.
HINT:
Codes other than code B0131/64 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0118
R13006AB0119H01021
H01083H01217
"u
E1 TcACC ON
orAirbag
Sensor
Assembly P/T Squib (RH)
DTC B0131/64 DLC1
DI-424
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
580 Author
: Date
:
2001 AVALON (RM808U)
4 Check P/T squib (RH).
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 seat belt pretensioner (RH) connector.
(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 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 B0131/64 is not output.
HINT:
Codes other than code B0131/64 may be output at this time, but
they are not relevant to this check.
NG Replace seat belt pretensioner (RH).
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.