1999 TOYOTA AVENSIS Supplement

  





H11660
Airbag
Sensor
Assembly
ICR+
ICR–ACC
or
DTC 82
ON → ←
E1
Tc Check Connector Curtain
Shield
Airbag
Squib (RH)
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI–13
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect ICR+ and ICR– of the con-
nector (on the curtain shield airbag assembly side) be-
tween the curtain shield airbag assembly (RH) and airbag
sensor assembly.
(c) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least for 20
seconds.
(b) Clear DTC stored in memory.
(See step 5 on page DI–153 of Pub. No. RM599E)
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 82 is not output.
HINT:
Codes other than code 82 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

  


H11661
→←
E1 TcACC ON
orAirbag
Sensor
Assembly Curtain
Shield
Airbag
Squib (RH)
DTC 82
Check Connector
DI–14
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
4 Check curtain shield airbag squib (RH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the curtain shield airbag assembly (RH) connec-
tor.
(d) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory.
(See step 5 on page DI–153 of Pub. No. RM599E)
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 82 is not output.
HINT:
Codes other than code 82 may be output at this time, but they
are not relevant to this check.
NG Replace curtain shield airbag assembly (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. If the malfunctioning part can not be
detected by the simulation method, replace all SRS components including the wire harness.


H11662
Airbag
Sensor
Assembly
(–) (+) Curtain
Shield
Airbag
Squib (RH)
Airbag Sensor
Assembly
ICR+
ICR–
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI–15
DTC 83 Short in Curtain Shield Airbag Squib (RH)
Circuit
CIRCUIT DESCRIPTION
The curtain shield airbag squib (RH) circuit consists of the airbag sensor assembly and curtain shield airbag
assembly (RH).
It causes the curtain shield airbag assembly (RH) to activate when the curtain shield airbag assembly (RH)
activation conditions are satisfied.
For details of the function of each component, see OPERATION on page RS–2.
DTC 83 is recorded when a short is detected in the curtain shield airbag squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
83

Short circuit between ICR+ wire harness and ICR– wire
harness of squib

Curtain shield airbag squib (RH) malfunction

Airbag sensor assembly malfunction
Curtain shield airbag assembly (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI–8.
INSPECTION PROCEDURE
1 Prepare for inspection. (See step 1 on page DI–285 of Pub. No. RM599E)
2 Check curtain shield airbag squib (RH) circuit.
PREPARATION:
Release airbag activation prevention mechanism of the con-
nector (on the airbag sensor assembly side) between the airbag
sensor assembly and curtain shield airbag assembly (RH).
(See page DI–1)
CHECK:
For the connector (on the airbag sensor side) between the cur-
tain shield airbag (RH) and airbag sensor assembly, measure
the resistance between ICR+ and ICR–.
OK:
Resistance: 1 MΩ or Higher
NG Repair or replace harness or connector be-
tween curtain shield airbag assembly (RH) and
airbag sensor assembly.
OK
DI699–01

  







H11663
Airbag
Sensor
Assembly
ACC
or
DTC 83ON → ←
E1
Tc Check ConnectorCurtain
Shield
Airbag
Squib (RH)
ICR+
ICR–
DI–16
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect ICR+ and ICR– of the con-
nector (on the curtain shield airbag assembly side) be-
tween the curtain shield airbag assembly (RH) and airbag
sensor assembly.
(c) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least for 20
seconds.
(b) Clear DTC stored in memory.
(See page DI–153 of Pub. No. RM599E)
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 83 is not output.
HINT:
Codes other than code 83 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

  




H11664
→←
E1Tc ACC ON
orAirbag
Sensor
Assembly
DTC 83
Check ConnectorCurtain
Shield
Airbag
Squib (RH)
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI–17
4 Check curtain shield airbag squib (RH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the curtain shield airbag assembly (RH) connec-
tor.
(d) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to LOCK, and wait at least for 20 se-
cond.
(b) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(c) Clear DTC stored in memory.
(See page DI–153 of Pub. No. RM599E)
(d) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(e) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(f) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 83 is not output.
HINT:
Codes other than code 83 may be output at this time, but they
are not relevant to this check.
NG Replace curtain shield airbag assembly (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.


H11662
Airbag
Sensor
Assembly
(–) (+) Curtain
Shield
Airbag
Squib (RH)
Airbag Sensor
Assembly
ICR+
ICR–
DI–18
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DTC 84 Open in Curtain Shield Airbag Squib (RH)
Circuit
CIRCUIT DESCRIPTION
The curtain shield airbag squib circuit (RH) consists of the airbag sensor assembly and curtain shield airbag
assembly (RH).
It causes the curtain shield airbag assembly (RH) to activate when the curtain shield airbag assembly (RH)
activation conditions are satisfied.
For details of the function of each component, see OPERATION on page RS–2.
DTC 84 is recorded when an open is detected in the curtain shield airbag squib (RH) circuit.
DTC No.DTC Detecting ConditionTrouble Area
84

Open circuit in ICR+ wire harness or ICR– wire harness of
squib

Curtain shield airbag squib (RH) malfunction

Airbag sensor assembly malfunction
Curtain shield airbag assembly (RH)

Airbag sensor assembly

Wire harness
WIRING DIAGRAM
See page DI–8.
INSPECTION PROCEDURE
1 Prepare for inspection. (See step 1 on page DI–285 of Pub. No. RM599E)
2 Check curtain shield airbag squib (RH) circuit.
CHECK:
For the connector (on the airbag sensor assembly side) be-
tween the curtain shield airbag assembly (RH) and airbag sen-
sor assembly, measure the resistance between ICR+ and
ICR–.
OK:
Resistance: Below 1 Ω
NG Repair or replace harness or connector be-
tween curtain shield airbag assembly (RH) and
airbag sensor assembly.
OK
DI69A–01

   







H11665
Airbag
Sensor
Assembly
DTC 84
E1
Tc Check ConnectorCurtain
Shield
Airbag
Squib (RH)
ICR+
ICR–ACC
orON
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI–19
3 Check airbag sensor assembly.
PREPARATION:
(a) Connect the connector to the airbag sensor assembly.
(b) Using a service wire, connect ICR+ and ICR– of the con-
nector (on the curtain shield airbag assembly side) be-
tween the curtain shield airbag assembly (RH) and airbag
sensor assembly.
(c) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least for 20
seconds.
(b) Clear DTC stored in memory.
(See page DI–153 of Pub. No. RM599E)
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 84 is not output.
HINT:
Codes other than code 84 may be output at this time, but they
are not relevant to this check.
NG Replace airbag sensor assembly.
OK

  




H11666
→←
E1
Tc ACC ON
orAirbag
Sensor
Assembly
DTC 84 Check ConnectorCurtain
Shield
Airbag
Squib (RH)
DI–20
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
4 Check curtain shield airbag squib (RH).
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (–) terminal cable from the battery,
and wait at least for 90 seconds.
(c) Connect the curtain shield airbag assembly (RH) connec-
tor.
(d) Connect negative (–) terminal cable to the battery, and
wait at least for 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(b) Clear DTC stored in memory.
(See page DI–153 of Pub. No. RM599E)
(c) Turn ignition switch to LOCK, and wait at least for 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least for 20
seconds.
(e) Check DTC.
(See page DI–152 of Pub. No. RM599E)
OK:
DTC 84 is not output.
HINT:
Codes other than code 84 may be output at this time, but they
are not relevant to this check.
NG Replace curtain shield airbag assembly (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.