1999 TOYOTA AVENSIS warning

RS0IK–01
H03384
H11628
H03386
H03387
H03388
RS–2
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
OPERATION
1. SIDE AIRBAG ASSEMBLY
The inflater and bag of the SRS side airbag are stored in the
side airbag assembly and cannot be disassembled. The inflater
contains a squib, igniter charge and gas generant, etc., and in-
flates the bag when instructed by the side airbag sensor assem-
bly.
2. CURTAIN SHIELD AIRBAG ASSEMBLY
The inflater and bag of the SRS curtain shield airbag are stored
in the curtain shield airbag assembly and cannot be disas-
sembled. The inflater contains a squib, igniter charge and gas
generant, etc., and inflates the bag when instructed by the side
airbag sensor assembly.
3. SRS WARNING LIGHT
The SRS warning light is located on the combination meter. It
goes on to alert the driver of trouble in the system when a mal-
function is detected in the airbag sensor assembly. In normal
operation conditions when the ignition switch is turned to the
ACC or ON position, the light goes on for about 6 seconds and
then goes off.
4. AIRBAG SENSOR ASSEMBLY
The airbag sensor assembly is mounted on the floor inside the
lower center finish panel. The airbag sensor assembly consists
of an airbag sensor, safing sensor, diagnosis circuit ignition
control and drive circuit, etc. It receives signals from the airbag
sensor, front airbag sensor, side airbag sensor and judges
whether the SRS must be activated or not.
5. SIDE AND CURTAIN SHIELD AIRBAG SENSOR AS-
SEMBLY
The side and curtain shield airbag sensor assembly is mounted
in the LH and RH center pillars. The side airbag sensor assem-
bly consists of a side airbag, sensor, safing sensor and diagno-
sis circuit, etc. It sends signals to the airbag sensor assembly
to judges whether the SRS side airbag must be activated or not.

Z05953
Spacer
Housing
Female Male
R10587
When Connector is Connected When Connector is Disconnected
Short Spring Plate
Housing
Housing
Terminal
ConnectorsShort Spring PlateSquib
Squib Short Spring Plate ONContacting Male Terminal Short Spring Plate
Closed Circuit
R12076Airbag Sensor AssemblyDisconnection
Detection
PinSRS
Warning
Light RS–4
– SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
(1) Terminal Twin–Lock Mechanism
Each connector has a two–piece component con-
sisting of a housing and a spacer. This design en-
ables the terminal to be locked securely by two lock-
ing devices (the retainer and the lance) to prevent
terminals from coming out.
(2) Airbag Activation Prevention Mechanism
Each connector contains a short spring plate. When
the connector is disconnected, the short spring
plate automatically connects positive (+) terminal
and negative (–) terminal of the squib.
HINT:
The type of connector is shown in the diagram on the previous
page.
(3) Electrical Connection Check Mechanism
This mechanism electrically checks that connectors
are connected correctly and completely. The electri-
cal connection check mechanism is designed so
that the disconnection detection pin connects with
the diagnosis terminals when the connector hous-
ing lock is locked.

RS0J2–01
H11591
Spiral Cable Combination Meter
(Warning Light)
Front Passenger Airbag Assembly
Side Airbag Assembly (RH)
Side and Curtain Shield Airbag
Sensor Assembly (RH)
Seat Belt Pretensioner (RH) Steering Wheel Pad
(with Airbag)
Side and Curtain Shield Airbag
Sensor Assembly (LH)Seat Belt
Pretensioner (LH)
Side Airbag Assembly (LH)
Airbag Sensor Assembly Front Airbag Sensor (RH)
Front Airbag
Sensor (LH)Curtain Shield Airbag Assembly (RH) Curtain Shield Airbag Assembly (LH)
– SUPPLEMENTAL RESTRAINT SYSTEMWIRE HARNESS AND CONNECTOR
RS–39
WIRE HARNESS AND CONNECTOR
LOCATION

BE197–02
I12456
1CD–FTV Engine
Vehicle Speed Sensor Low Oil Pressuer Warning Switch
BE–2
– BODY ELECTRICALCOMBINATION METER
COMBINATION METER
LOCATION

I04818
SPEEDOMETER
TACHOMETER
WATER TEMP.
FUEL
OIL LEVEL
ODO / TRIP
METER
OUTSIDE TEMP.
CLOCK
RHEOSTATLCD
DISPLAY
LCD
DISPLAY S
T
W
FA18
B7
B20 A5
A15
A3
A6
A7
A8
A12
A11
A19
A10
A9
B11
B24
B5
A22
B4
A23
B14
A23
A25
B16
B14
B21
A22
A14VOLTAGE
STABILIZER
B17
B22
B9
B26
A24 Brake Warning
Fuel filter Warning
Discharge Waring
Economy Indicator
Turbo / Glow Plug Indicator
Glow Plug Indicator
ABS Warning
Low Oil Pressure Warning
Check Engine Warning
O / D OFF Indicator
ECT SNOW Indicator
ECT PWR Indicator
Rear Fog Light Indicator
High Beam Indicator
Right Turn Indicator
Left Turn Indicator
Open Door Warning
SRS Warning
Front Fog light Indicator A1
B15
B18A26
B2
A17
B1
B13
B6
B3 B19
BE–4
– BODY ELECTRICALCOMBINATION METER

No.
AGround (Power)
Tacho Pick–UP Sensor
EFI ECU (3S–FE, 2C–TE Engine)
EGR (2C–T Engine)
Vehicle Speed Sensor
EFI ECU
Water Temperature Sender Gauge (2C–T Engine)
Ground (Engine)
Ground
Outside Temperature Sender Gauge
Ground (Fuel)
Fuel Sender Gauge
Ground (Power)
Ground (Speed)
Turn Signal Switch (Right)
Other Parts
Oil Level Warning Switch
O/D OFF Switch
ECT ECU (Gasoline Engine)
Fuel Filter Warning Switch (Diesel Engine)
Glow Plug Timer (Diesel Engine)
EFI ECU (Gasoline Engine)
ECT Pattern Select Switch
ABS ECU
Rear Fog Light Switch 1
3
5
6
7
8
9
10
11
12
14
15
17
18
19
21
22
23
24
25
26Wire Harness Side
1
2
3
4
5
6
7
9
11
13
14
15
16
17
18
19
20
22
24
26Turn Signal Switch (Left)
H–LP Fuse
Front Fog Light Switch
Alternator L Terminal
Brake Fluid Level Warning Switch
Parking Brake Switch
ECU+B Fuse
Taillight Relay
GAUGE Fuse
Ground (Signal)
DOOR Fuse
EFI ECU (Gasoline Engine)
EGR ECU (Diesel Engine)
Headlight Dimmer Switch
Low Oil Pressure Warning Switch
IGN Fuse
Door Courtesy Switch
Airbag ECU
Taillight Relay
GAUGE Fuse
Ground (Signal)
DOOR Fuse
B
– BODY ELECTRICALCOMBINATION METER
BE–5

I01275
Ignition
Switch
BatterySender
Gauge Receiver
Gauge
I01276
Ignition
Switch
BatteryReceiver
Gauge
Test Bulb
(3.4 W)
I01277
Battery Ignition
SwitchWarning Light
Wire Harness Side
1
– BODY ELECTRICALCOMBINATION METER
BE–7
(b) Compare the tester and tachometer indications.
DC 13.5 V 25
C at (77
F)
Standard indicationAllowable range
700630 – 770
1,000900 – 1,100
2,0001,850 – 2,150
3,0002,800 – 3,200
4,0003,800 – 4,200
5,0004,800 – 5,200
6,0005,750 – 6,250
7,0006,700 – 7,300
4. INSPECT ENGINE COOLANT TEMPERATURE RE-
CEIVER GAUGE OPERATION
(a) Disconnect the connector from the sender gauge.
(b) Turn the ignition switch ON and check that the receiver
gauge needle indicates COOL.
(c) Ground terminal on the wire harness side connector
through a 3.4 W test bulb.
(d) Turn the ignition switch ON, and check that the bulb lights
up and the receiver gauge needle moves to the hot side.
If operation is as specified, replace the sender gauge.
Then recheck the system.
If operation is not as specified, measure the receiver gauge re-
sistance.
5. INSPECT LOW OIL PRESSURE WARNING LIGHT
(a) Disconnect the connector from the warning switch and
ground terminal on the wire harness side connector.
(b) Turn the ignition switch ON and check that the warning
light lights up.
If the warning light does not light up, test the bulb.