ECU TOYOTA AVENSIS 1999 Supplement

IN044–07
IN–34
– INTRODUCTIONTERMS
TERMS
ABBREVIATIONS USED IN THIS MANUAL
AbbreviationsMeaning
ABSAnti–Lock Brake System
A/CAir Conditioner
ACAlternating Current
ACCAccessory
ACISAcoustic Control Induction System
ACSDAutomatic Cold Start Device
A.D.D.Automatic Disconnecting Differential
AHCActive Height Control Suspension
ALRAutomatic Locking Retractor
ALTAlternator
AMPAmplifier
ANTAntenna
APPROX.Approximately
A/TAutomatic Transmission (Transaxle)
AT FAutomatic Transmission Fluid
AUTOAutomatic
BACSBoost Altitude Compensation System
BATBattery
B/LBi–Level
BVSVBimetallic Vacuum Switching Valve
CBCircuit Breaker
CDCompact Disc
CHChannel
CKDComplete Knock Down
COMB.Combination
CPECoupe
CRSChild Restraint System
CTRCenter
DCDirect Current
DIFF.Differential
DIFF. LOCKDifferential Lock
DLCData Link Connector
DSPDigital Signal Processor
DTCDiagnostic Trouble Code
ECTElectronic Control Transmission
ECUElectronic Control Unit
EDUElectronic Driving Unit
EFIElectronic Fuel Injection
E/GEngine
EGRExhaust Gas Recirculation
ELREmergency Locking Retractor
E–VRVElectronic Vacuum Regulating Valve

DIAGNOSTICS
SUPPLEMENTAL RESTRAINT SYSTEM DI–1. . .
PRE–CHECK DI–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC TROUBLE CODE CHART DI–4. . . . . .
PARTS LOCATION DI–5. . . . . . . . . . . . . . . . . . . . . . . . .
TERMINALS OF ECU DI–6. . . . . . . . . . . . . . . . . . . . . .
CIRCUIT INSPECTION DI–8. . . . . . . . . . . . . . . . . . . . .
REFER TO AVENSIS/CORONA REPAIR MANUAL FOR
CHASSIS AND BODY (Pub. No. RM599E)
NOTE: The above pages contain only the points which differ
from the above listed manual.

DI696–01
H01357
C6C5C4
A B
1 2 3 4 5 6A BA B
7 8 9 10 11 121 2 3 4 5 6
7 8 9 10 11 12 1 2 3 4 5 6
7 8 9 10 11 12
23 24 25 26 27 2813 14 15 16 17
18 19 20 21 22 DI–6
– DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
TERMINALS OF ECU
No.SymbolTerminal Name
A–Electrical Connector Check Mechanism
B–Electrical Connector Check Mechanism
C4 – 1SFL–Squib (Side, LH)
C4 – 2SFL+Squib (Side, LH)
C4 – 5PL+Squib (Seat Belt Pretensioner, LH)
C4 – 6PL–Squib (Seat Belt Pretensioner, LH)
C4 – 7ESLSide Airbag Sensor (LH)
C4 – 9FSLSide Airbag Sensor (LH)
C4 – 10SSL+Side Airbag Sensor (LH)
C4 – 12VUPLSide Airbag Sensor (LH)
C5 – 3LASRS Warning Light
C5 – 5IG2Power Source (IGN Fuse)
C5 – 6ACCPower Source (CIG Fuse)
C5 – 7ICL+Squib (Curtain Shield Airbag, LH)
C5 – 8ICL–Squib (Curtain Shield Airbag, LH)
C5 – 9SR+Front Airbag Sensor (RH)
C5 – 10P+Squib (Passenger)
C5 – 11P–Squib (Passenger)
C5 – 12SILDiagnosis
C5 – 13D–Squib (Driver)
C5 – 14D+Squib (Driver)
C5 – 15SL+Front Airbag Sensor (LH)
C5 – 16ICR–Squib (Curtain Shield Airbag, RH)
C5 – 17ICR+Squib (Curtain Shield Airbag, RH)
C5 – 19TcDiagnosis

D06632AB
D06638
Q10165
Filler Plug
Oil Level
0 – 5 mm
Drain Plug
D06631
MX–6
– MANUAL TRANSAXLE (E251)MANUAL TRANSAXLE UNIT
13. REMOVE ENGINE LEFT MOUNTING BRACKET 3 SET
BOLTS AND NUT
Torque:
Bolt A: 52 N·m (530 kgf·cm, 38 ft·lbf)
Nut B: 87 N·m (890 kgf·cm, 64 ft·lbf)
14. REMOVE ENGINE LEFT MOUNTING BRACKET
Lower the transaxle side and remove the bolt and bracket.
Torque: 52 N·m (530 kgf·cm, 38 ft·lbf)
15. REMOVE FRONT WHEEL
Torque: 216 N·m (2,200 kgf·cm, 159 ft·lbf)
16. RAISE VEHICLE
NOTICE:
Make sure that the vehicle is securely supported.
17. DRAIN TRANSAXLE OIL
Oil grade: API GL–4 or GL–5
Viscosity: SAE 75W–90
Capacity: 3.9 liters (4.1 US qts, 3.4 Imp. qts)
Torque: 49 N·m (500 kgf·cm, 36 ft·lbf)
18. REMOVE FRONT EXHAUST PIPE
(a) Remove the 2 bolts, 2 nuts and gasket from the exhaust
manifold.
Torque: 62 N·m (630 kgf·cm, 46 ft·lbf)
(b) Remove the 2 bolts, 2 springs, gasket and pipe.
Torque: 48 N·m (490 kgf·cm, 35 ft·lbf)
19. REMOVE LH AND RH FRONT DRIVE SHAFTS
(See page SA–1)
20. REMOVE ENGINE MOUNTING CENTER MEMBER
(a) Remove the 2 bolts and front transport hook.
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
(b) Support the suspension crossmember with a jack.
(c) Remove the nuts, and disconnect the suction pipe.

F08950
RH Drive Shaft
LH Drive shaft
R10353
SST
F09070
F02727
SST
– SUSPENSION AND AXLEFRONT DRIVE SHAFT
SA–9
7. ASSEMBLE BOOT CLAMPS TO BOTH BOOTS
(a) Make sure that the 2 boots are on the shaft groove.
(b) Make sure that the 2 boots are not stretched or contracted
when the drive shaft is at standard length.
Drive shaft standard length:
RH852.15  2.0 mm (33.55  0.079 in.)
LH548.15  2.0 mm (21.58  0.079 in.)
(c) Secure the clamps onto the boot.
(d) Place SST onto the clamps.
SST 09521–24010
(e) Tighten the SST so that the clamps are pinched.
NOTICE:
Do not overtighten the SST.
(f) Using SST, adjust the clearance of the clamps.
SST 09240–00020
Clearance: 1.9 mm (0.075 in.) or less
8. RH drive shaft:
ASSEMBLE DAMPER CLAMP
(a) Make sure that the dynamic damper is on the shaft
groove.
(b) Set the distance, as described below.
Distance: 267
2.0 mm (10.512
0.079 in.)
(c) Secure the clamp onto the damper.
(d) Place SST onto the clamps.
SST 09521–24010
(e) Tighten the SST so that the clamps are pinched.
NOTICE:
Do not overtighten the SST.
(f) Using SST, adjust the clearance of the clamps.
SST 09240–00020
Clearance: 1.9 mm (0.075 in.) or less
9. CHECK DRIVE SHAFT (See page SA–5)

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.

AB0158
SSTBattery
H03420
Tires
(5 or More)
R05403
H0342110 m (33 ft) or more SSTBattery
Side Airbag
Assembly
RS–16
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY

Always tie down the side airbag assembly with the
airbag door facing inside.
NOTICE:
The tire will be marked by the airbag deployment, so use
the redundant tire.
(d) Check functioning of the SST.
SST 09082–00700, 09082–00750
(e) Place the tires.
(1) Place at least 2 tires under the tire to which the side
airbag assembly is tied.
(2) Place at least 2 tires over the tire to which the side
airbag assembly is tied. The top tire should have the
wheel installed.
(3) Tie the tires together with 2 wire harnesses.
CAUTION:
Make sure that the wire harnesses are tight. It is very dan-
gerous when loose wire harnesses results in the tires com-
ing free due to the shock from the airbag deploying.
HINT:
Place the SST connector and wire harness inside tires. Secure
at least 1 m (3 ft) of slack for the wire harness.
(f) Install the SST.
Connect the connector of 2 SST to the side airbag assem-
bly connector.
SST 09082–00700, 09082–00750
NOTICE:
To avoid damaging the SST connector and wire harness,
do not lock the secondary lock of the twin lock.
(g) Deploy the airbag.

H11607
AB0158
SSTBattery
H11608
Tires
(5 or More)
R05403
– SUPPLEMENTAL RESTRAINT SYSTEMCURTAIN SHIELD AIRBAG ASSEMBLY
RS–29
(2) Position the inflater of curtain shield airbag inside
the tire with the airbag explosion direction facing in-
side.
Tire size : Must exceed the following dimensions:
Width 185 mm (7.28 in.)
Inner diameter 360 mm (14.17 in.)
CAUTION:

Make sure the wire harness is tight. It is very danger-
ous when a loose wire harness results in the curtain
shield airbag coming free due to the shock from the
airbag exploding.

Always tie down the curtain shield airbag with the ex-
plosion facing inside.
NOTICE:
The tire will be marked by the airbag explosion, so use the
redundant tire.
(c) Check functioning of the SST.
SST 09082–00700, 09082–00750
(d) Place the tires.
(1) Place at least 2 tires under the tire to which the cur-
tain shield airbag is tied.
(2) Place at least 2 tires over the tire to which the curtain
shield airbag is tied. The top tire should have the
wheel installed.
(3) Tie the tires together with 2 wire harnesses.
CAUTION:
Make sure that the wire harnesses are tight. It is very dan-
gerous when loose wire harnesses results in the tires com-
ing free due to the shock from the airbag exploding.
HINT:
Place the SST connector and wire harness inside tires. Secure
at least 1 m (3 ft) of slack for the wire harness.

RS0IY–01
H03674
H03425
– SUPPLEMENTAL RESTRAINT SYSTEMSIDE AND CURTAIN SHIELD AIRBAG SENSOR
ASSEMBLYRS–35
REMOVAL
NOTICE:
Do not open the cover or the case of the ECU and various
electrical devices unless absolutely necessary.
(If the IC terminals are touched, the IC may be destroyed by
static electricity.)
1. REMOVE FRONT AND REAR SCUFF PLATE
2. REMOVE CENTER PILLAR LOWER GARNISH
3. REMOVE FRONT SEAT OUTER BELT RETRACTOR
(See Pub. No. RM599E on page BO–151)
(a) Disconnect the pretensioner connector.
(b) Remove the 2 bolts and retractor.
4. REMOVE SIDE AND CURTAIN SHIELD AIRBAG SEN-
SOR ASSEMBLY
(a) Disconnect the connector.
NOTICE:
Remove the connector with the sensor assembly installed.
(b) Remove the 2 bolts, nut and side and curtain shield airbag
sensor assembly.

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