2001 TOYOTA AVALON ignition

H01024AB0118AB0119R13006H01077H01202
"u
E1Tc ACC ON
or
DTC B0105/53 DLC1Airbag
Sensor
Assembly P Squib
DI-382
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
538 Author
: Date
:
2001 AVALON (RM808U)
4 Check P squib.
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 front passenger airbag assembly 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
seconds.
(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 B0105/53 is not output.
HINT:
Codes other than code B0105/53 may be output at this time, but
they are not relevant to this check.
NG Replace front passenger airbag assembly.
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.

H01023
AB0118AB0119R13006H01078 H02144H02253
P Squib
Airbag
Sensor
Assembly
P +
P-ACC
or
DTC B0106/54 DLC1
ON " u
E1
Tc
DI-384
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
540 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 P+ and P- of the connector
(on the front passenger airbag assembly side) between
the front passenger airbag assembly and the airbag sen-
sor 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 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 B0106/54 is not output.
HINT:
Codes other than code B0106/54 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

H01024AB0118AB0119R13006H01078H01205
"u
E1Tc ACC ON
or
DTC B0106/54 DLC1Airbag
Sensor
Assembly P Squib
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-385
541 Author
: Date
:
2001 AVALON (RM808U)
4 Check P squib.
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 front passenger airbag assembly 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 B0106/54 is not output.
HINT:
Codes other than code B0106/54 may be output at this time, but
they are not relevant to this check.
NG Replace front passenger airbag assembly.
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.

AB0118
R13006AB0118H01023
H01075 H02144H02255
P Squib
Airbag
Sensor
Assembly
P+
P-ACC
or
DLC1
ON " u
E1 TcDTC B0107/51
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-387
543 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 P+ and P- of the connector
(on the front passenger airbag assembly side) between
the front passenger airbag assembly and the airbag sen-
sor 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).
OK:
DTC B0107/51 is not output.
HINT:
Codes other than code B0107/51 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0118
R13006AB0119H01024
H01075H01196
"u
E1Tc ACC ON
or
DTC B0107/51 DLC1Airbag
Sensor
Assembly P Squib
DI-388
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
544 Author
: Date
:
2001 AVALON (RM808U)
4 Check P squib.
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 front passenger airbag assembly 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 B0107/51 is not output.
HINT:
Codes other than code B0107/51 may be output at this time, but
they are not relevant to this check.
NG Replace front passenger airbag assembly.
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.

H01022
H02146AB0119H04524
P SquibAirbag
Sensor
Assembly
(-) (+)P+
ON
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-389
545 Author
: Date
:
2001 AVALON (RM808U)
DTC B0108/52 Short in P Squib Circuit (to B+)
CIRCUIT DESCRIPTION
The P squib circuit consists of the airbag sensor assembly and front passenger airbag assembly.
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 B0108/52 is recorded when a B+ short is detected in the P squib circuit.
DTC No.DTC Detecting ConditionTrouble Area
B0108/52

Short circuit in P squib wire harness (to B+)

P squib malfunction

Airbag sensor assembly malfunction
Front passenger airbag assembly (P squib)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI-379.
INSPECTION PROCEDURE
1 Prepare for inspection (See step 1 on page DI-475).
2 Check P squib circuit.
CHECK:
(a) Turn the ignition switch to ON.
(b) For the connector (on the front passenger airbag assem-
bly side) between the front passenger airbag assembly
and the airbag sensor assembly, measure the voltage be-
tween the P+ and body ground.
OK:
Voltage: 0 V
NG Repair or replace harness or connector be-
tween front passenger airbag assembly and air-
bag sensor assembly.
OK
DI4CR-02

AB0118
R13006AB0118H01023
H01076 H02144H02257
P Squib
Airbag
Sensor
Assembly
P+
P-ACC
or
DTC B0108/52 DLC1
ON " u
E1
Tc
DI-390
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
546 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 P+ and P- of the connector
(on the front passenger airbag assembly side) between
the front passenger airbag assembly and the airbag sen-
sor 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).
OK:
DTC B0108/52 is not output.
HINT:
Codes other than code B0108/52 may be output at this time, but
they are not relevant to this check.
NG Replace airbag sensor assembly.
OK

AB0118
R13006AB0119H01024
H01076H01199
"u
E1Tc ACC ON
or
DTC B0108/52
DLC1Airbag
Sensor
Assembly P Squib
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-391
547 Author
: Date
:
2001 AVALON (RM808U)
4 Check P squib.
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 front passenger airbag assembly 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 B0108/52 is not output.
HINT:
Codes other than code B0108/52 may be output at this time, but
they are not relevant to this check.
NG Replace front passenger airbag assembly.
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.