2003 TOYOTA AVENSIS immobiliser

air filter USB port trunk release recommended oil towing engine oil capacity

Page 31 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual MO
NEW MODEL OUTLINEMO-29

: Standard OP: Option
EuropeGeneral
ENTRYMID
TECHNICALMID
ELEGANTGeneralCountries
Body Electrical
HeadlightProjectorHeadlightHID (High lntensity Discharge)ÐOPOPÐ
Head

Page 56 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual 010B6±13
±
INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±21
AVENSIS REPAIR MANUAL (RM1018E)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
There are many ECU controlled

010B6±13
±
INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±21
AVENSIS REPAIR MANUAL (RM1018E)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
There are many ECU controlled systems used in the AVENSIS. In general, ECU controlled system are con-
sidered to be very intricate and require a high level of technical knowledge an\
d expert skill to troubleshoot.
The fact is, however, that if you proceed by inspecting the circuits one by one, troubleshoo\
ting of these sys-
tems is not complex. If you have adequate understanding of the system and ba\
sic knowledge of electricity,
the problem can be accurately diagnosed and fixed. This manual is design\
ed based on the above principle
to help service technicians perform accurate and effective troubleshooting, and is compiled for the following
major ECU controlled systems:
The troubleshooting procedures are described on the following pages.
SystemPage
1. SFI System [1ZZ±FE, 3ZZ±FE]05±1
2. SFI System [1AZ±FE]05±143
3. SFI System [1AZ±FSE]05±290
4. ECD System [1CD±FTV]05±523
5. ABS with EBD System05±696
6. ABS with EBD & BA & TRC & VSC System05±752
7. Electronic Controlled Automatic Transmission [ECT] [U241 (1AZ±FE)]05±856
8. Electronic Controlled Automatic Transmission [ECT] [U241 (1AZ±FSE)]05±915
9. Electronic Controlled Automatic Transmission [ECT] [U341]05±980
10.Electronic Motor Power Steering System05±1042
11. Air Conditioning System05±1088
12.Combustion Type Power Heater System05±1161
13.Supplemental Restraint System05±1181
14.Audio System05±1393
15.Navigation System05±1435
16.Combination Meter05±1497
17.Power Door Lock Control System05±1534
18.Wireless Door Lock Control System05±1568
19.Key Reminder Warning System05±1586
20.Engine Immobiliser System05±1599
21.Theft Deterrent System05±1627
22.Multiplex Communication System05±1654
23.Cruise Control System05±1697
FOR USING HAND±HELD TESTER
Before using the tester, the tester's operator manual should be read thoroughly.
If the tester cannot communicate with the ECU controlled systems when you \
have connected the cable
of tester to the DLC3, turned the ignition switch ON and operated the test\
er, there is a problem on the
vehicle side or tester side.
(1) If the communication is normal when the tester is connected to another veh\
icle, inspect the diag-
nosis data link line (Bus line) or ECU power circuit of the vehicle.
(2) If the communication is still impossible when the tester is connected to a\
nother vehicle, the prob- lem is probably in the tester itself, so perform the Self Test procedures outlined in the Tester Oper-
ator 's Manual.
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Page 60 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual ±
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±25
AVENSIS REPAIR MANUAL (RM1018E)
SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE
HINT:
The diagnostic system in AVENSIS has various

±
INTRODUCTION HOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS01±25
AVENSIS REPAIR MANUAL (RM1018E)
SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE
HINT:
The diagnostic system in AVENSIS has various functions. The first function is the Diagnostic Trouble
Code (DTC) Check, in which a malfunction in the signal circuits to the ECU is stored in code form in
the ECU memory. Another function is the Input Signal Check, which checks if the signals from various
switches are sent to the ECU correctly. By using these check functions, it is possible to quickly narrow
down potential problem areas and troubleshooting can be performed effectively. The diagnostic func-
tions are incorporated in the following systems in the AVENSIS.
SystemDiagnostic Trouble
Code CheckInput Signal Check(Sensor Check)Diagnostic Test
Mode (Active Test)
SFI System (1AZ±FE/1AZ±FSE, 1ZZ±FE/3ZZ±FE)
(with Check Mode)
ECD System (1CD±FTV)
(with Check Mode)
ABS with EBD System
ABS with EBD & BA & TRC & VSC System
Electronically Controlled Automatic Transmission [ECT]
(with Check Mode)
Air Conditioning System
Supplemental Restraint System
Audio System
Power Door Lock Control System
Wireless Door Lock Control System
Key Reminder Warning System
Engine Immobiliser System
Theft Deterrent System
Multiplex Communication System
Cruise Control System
In the DTC check, it is very important to determine whether the problem indicated by the DTC is still
occurring or has occurred in the past but returned to normal at present. In addit\
ion during the problem
symptom check, it a check must be made on whether the malfunction indicated by \
the DTC is directly
related to the problem symptom or not. For this reason, the DTC should be checked before and after
symptom confirmation to determine the current conditions. If this is not done, \
it may, depending on the
case, result in unnecessary troubleshooting for systems that are operati\
ng normally. This would make
more difficult to detect the problem area or to try to repair irrelevant areas. \
Therefore, always follow
the procedures in the correct order and perform the DTC check.
A flow chart showing how to proceed with troubleshooting using the diagnostic trouble\
code (DTC)
check is shown the this page. This flow chart shows how to utilize the DTC check effectively. Then,
by carefully checking the results, this chart indicates how to proceed either to the DTC troubleshooting
or to the troubleshooting of the problem symptoms table.
1 DTC check
2 Make a note of DTCs displayed and then clear the memory
3 Symptom confirmation
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Page 107 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual 02±2
±
PREPARATION DIAGNOSTICS
AVENSIS REPAIR MANUAL (RM1018E)
(09083±00150)Test Lead SetAIR CONDITIONING SYSTEM
ABS WITH EBD SYSTEM
ELECTRONIC MOTOR POWER
STEERING SYSTEM
MULTIPLEX COMMUNICATIO

Page 1725 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual 73±34
±
THEFT DETERRENT & DOOR LOCK THEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3. FORCED DOOR LOCK CONTROL
(a) The forced door lock control prevents the vehicle from being tampered wi

73±34
±
THEFT DETERRENT & DOOR LOCK THEFT DETERRENT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
3. FORCED DOOR LOCK CONTROL
(a) The forced door lock control prevents the vehicle from being tampered with. Immediately after a door\
is unlocked (alarm starts), the door is forced to lock by a forced doo\
r lock signal.
(1) Conditions that force the doors to lock:
When no key is in the ignition key cylinder and 0.4 seconds have elapsed aft\
er the previous out-
put of a forced door lock signal, the doors will be forced to lock if any o\
f the following conditions
is present.
The theft deterrent system is in the armed state of active arming mode.
All the doors are locked. Any door is unlocked.
Any door is unlocked.
HINT:
Only Europe:
Forced door lock control does not operate if any door is unlocked by key\
.
4. ALARM MEMORY FUNCTION
(a) If the alarm is set off (tampering is detected) while the theft deterrent system is set, the\
alarm memory function will record it. Whenever you cancel the theft deterrent system, the al\
arm memory function
causes the taillights to light up for 2 seconds in order to inform you t\
hat the alarm has been set off.
(1) Conditions of the alarm memory function that cause the taillights to lig\
ht up:
When the theft deterrent system has entered into the alarm sounding state (\
tampering has been
detected) even once, the taillights will light up for 2 seconds if any of the following conditions is
present.
Switched to the disarmed state from the armed state.
5. SECURITY INDICATOR OUTPUT
(a) The theft warning ECU outputs a signal to light up the security indicator, according to the state of the theft deterrent system. However, some of the actual lighting conditions of the security indicator are d\
if-
ferent from the outputs of the theft warning ECU.
Output:
State of Theft Deterrent SystemSecurity IndicatorState of Theft Deterrent SystemOutput Signals from Theft Warning ECUActual Lighting Condition
Disarmed stateOFFOFF (Immobiliser system unset)
BLINKING (Immobiliser system set)
Arming preparation stateONON
Armed stateOFFBLINKING
Alarm sounding stateONON
Blinking cycle:
TimeSecurity Indicator
0.2 sec.ON
1.8 sec.OFF
HINT:
When the immobiliser system is set, the security indicator blinks during the \
disarmed state and the armed
state, due to the output signals from the immobiliser system.
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Page 1922 of 2234

TOYOTA AVENSIS 2003 Service Repair Manual 148AVENSIS (EWD526E)
Engine Control (1AZ–FE)
FL MAIN
3. 0W
Battery
20A EFI
2
15A IG2
1
2
1 3
5
2
1
2
1
3
5B–Y
EFI Relay
B–W
10A IGN
10A EFI NO. 1
B–W
2
2
1
7. 5A EFI NO. 2
1
5
3
2
1
IG2 Relay

148AVENSIS (EWD526E)
Engine Control (1AZ–FE)
FL MAIN
3. 0W
Battery
20A EFI
2
15A IG2
1
2
1 3
5
2
1
2
1
3
5B–Y
EFI Relay
B–W
10A IGN
10A EFI NO. 1
B–W
2
2
1
7. 5A EFI NO. 2
1
5
3
2
1
IG2 Relay
W–B
B–R
B–W B–W
G–Y
L–B
W–B B–W
B–W
B–R B–R B–WGR
B–Y
W–B B–W
W–B R–B
B
W–B
EC BR
E 2
B–G
4A
1
4B
1
B–G
1A
1 1
14 4
44 44 4
EA1
13 EA1
12
44 44
DA
18
DL
16
B–W
M
5 4
IB1
10
IC3
6
C 8
F25
G–Y
B–W B–R
G–Y GR
B–Y
R–B
B–W
From Power Source System
(
See Page 120 )
A/F Relay
44
44
EA1
1
EA1
2
W W
( ∗ 1 )
( ∗ 1 )
(
∗ 1 )
(
∗ 1 )
W
W
W
(
∗ 1 )
W (
∗ 1 )
GR
B–R
(
∗ 1 )
(
∗ 1 )
∗
1 : Unleaded Gasoline
Circuit Opening
Relay
Fuel Pump 20A A/F
2
1
1
( ∗ 1 )
B–R
23
15
W–B
W–B
AVENSIS (EWD526E) 149
Check
Engine
W
B
22
B9
21 B
20 B
18 B
5B
IP
6CA 6CK
Tachometer
FC
FC
HB 7. 5A
DOME
W–R
From Power Source System
(
See Page 120 )
6 10A
GAUGE1
DB
7
( RHD )
(
LHD )
FA
J1 0 (
A )
, J11 (
B )
, J26 (
C )
W–R
W–R
( LHD )
R–W
W–B
V–W
W–B
CA
7
CD
6
R–W
CPU
(
RHD )
Speedometer
Temp.
BEAN
I/F A
13
A
14
P–B
P
IC1
1 IC1
10
P–B P
MPX2
11
22I14
MPX1P
B3
GR–R B–W
C10 (
A )
, C11 (
B )
GR–R
B–WR–BB–Y GR
P
B–W
WP
V–W G–YB–R
B–W
B–W
R–BB–Y GR
G–Y B–R
B–W 2
1
3CB
W–B
W–B
(RHD )
(
RHD )
W
(
∗ 1 )
W (
∗ 1 ) W
(
∗ 1 )
W (
∗ 1 )
Integration Relay
Combination Meter
Junction
Connector
S 2Skid Control ECU
with Actuator
SP1
23
L–W
L–W
IE1
16
B
19 CE
8 R–W
(
M/T )
R–W
( M/T )
150
AVENSIS (EWD526E)
Engine Control (1AZ–FE)
FC
BATT
MREL
B–R+B
B–R
R–B
R–B
2
1
2
1
2
1
2
1
Y
W B
IGSW
#2 #3 #4
W–B BR R–B
R–B
R–B
R–B
E1
R–B
R–B
#1
B–R
2
3
1
G–R
B–R
RSD
B–R
B–W
B–Y GR
GR
B–Y
B–R B–R G–Y
DE C
AC A
A
CA CAC(
LHD )
B–W
B–W
B–W B–W
(
RHD )
(
LHD )
( RHD )
J 8(
A )
, J26 (
C )
,
J2 7 (
D )
A9
IE1
2
IK1
8
A
8A 3
A
10 A
1
E 9 (
A )
, E10 (
B )
, E12 (
C )
, E13 (
D )
D
1D 2D3D4
I 8 I 7
I 6
I 5
C
10
C7
EA1
8
E 4E 4E 4
I10
EF
HA HC
AH
(
LHD )
CH (
RHD )
J1 0(
A )
, J20 (
C )
(
LHD )
(
RHD )
V–W
SPD
17 B
V–W
MPX–
A1 39
29
MPX+
P
A
P P–B
29
MPX1
MPX2
23 A
A
11 W
W
GR–R
B–W B–R
G–Y
V–W P
W B–W
P
GR
B–Y
R–B
B–W
GR–R
W–B W–B(
RHD )
( RHD ) D
23
1
PSW
G
P 2
W
(
∗ 1 )
W(
∗ 1 )
W (
∗ 1 )
W(
∗ 1 )
A/C Control Assembly
Engine and ECT ECU (
A/T )
Engine ECU (
M/T )
Injector No. 1
Injector No. 2
Injector No. 3
Injector No. 4
ISC Valve
Junction
Connector
Junction Connector
Power Steering
Oil Pressure SW
IO1
7 IE3
7 (
LHD )
( RHD )
R–W
(
M/T )
R–W
( M/T )
GND +B
DUTY
E 3 : LHD
I 3 : RHD
E 3 : LHD
I 3 : RHD
BR
AVENSIS (EWD526E)151
B–Y
1
2
R–W
BR B–W
G–R
L–Y G
B–R BR
15 1
3
2
1
3
4
2
3
VAF
VC VAF
VCC
VG EVG THA THW VTA1
L–W
BR
BR STA
1
2
W–G
B–W
PRG
B–W
BR
BR
P
E2
ELS
G
2
R–W
E2
BR
A
12 C 9
D
12 C 24 C32 D
20 D19D
28 D
21 D
18 D32
V 5
A 6
E 2
V 3E2
+B
E2G
VG THA
E 3 CC
BC AC (
LHD )
DC (
RHD )
IC2
3
A A DM
4
10A
TAIL
J1 0
(
A )
, J11 (
B )
,
J2 6 (
C )
, J27 (
D )
G
G
G
(
LHD )
(
RHD ) 6
7. 5A
ST
B–W
A
AA A
AB BB
P
N
96
N 1
B–Y
J1 2 (
A )
, J13 (
B )
B–Y
B–W
(
M/T )
(
A/T )
(
A/T )
1
2
B–R
B–W
T 2
E 9
(
A )
, E10 (
B )
, E12 (
C )
, E13 (
D )
GR–R
GR–R
From Power Source System (
See Page 120 )
∗
1 : Unleaded Gasoline
W–B (
RHD )
W–B(
RHD )
∗
3 : Leaded Gasoline
EA1
9
R–W
R–W
EA1
3P
EA1
10
(
∗ 3 )
(
∗ 3 )
(
∗ 3 )
( ∗ 3 )(
∗3 )
(
∗ 3 )
( ∗ 1 )
W (
∗ 1 )
W (
∗ 1 )
W(
∗ 1 )
W
(
∗ 1 )
B–W
(
∗ 1 )
Air Flow Meter
Engine and ECT ECU (
A/T )
Engine ECU (
M/T )
Junction Connector
Junction Connector
Neutral
Start SW
Throttle Position
Sensor
Variable Resistor VSV
(
EVAP )
EFI Water Temp. Sensor Junction
Connector
J3 0
R–W
( M/T )
E 3 : LHD
I 3 : RHD
E 3 : LHD
I 3 : RHD E 4
VTA VC E2
CLSW
LG–B
B
10 C C
Junction
ConnectorJ1 4
(
M/T )
IE2
15
1 2
IE2
9
Clutch Start SWC 9
R–W
( M/T ) R–W
( M/T )
LG–B( M/T )
LG–B ( M/T )
BR
BR
152AVENSIS (EWD526E)
Engine Control (1AZ–FE)
LG–B
STP
F/PS
G–W
FAN
FAN NO. 2 Relay
W
∗
1 : Unleaded Gasoline
RL
Y
Y
B
19 A 14 A 7
FAN NO. 1 Relay
Diode (
Fan )DC
10 DA 11
DA
2DD 9GSW2
A2 7
23
LG–B
15A
STOP
R–W
IR1
2IE3 11
1 2 IE3
6IR1 1
(
RHD )
( LHD )
R–W
G–W
( LHD )
( RHD )
G–W
S13
G–W
( RHD )
(
LHD )
G–W R–W
( LHD )
(
RHD )
R–W
L
4
A1 1
IK1
9
B
28
E 9 (
A )
, E10 (
B )
, E12 (
C )
, E13 (
D )
GR–R
GR–R
DA
22
W–B (
RHD )
W–B(
RHD )
From Power Source System
(
See Page 120 )
W (
∗ 1 )
W
(
∗ 1 )
B–W
(
∗ 1 ) C
23 C31
C
6C 22C30
C5
AD
I 4 C
21 D
32 C
29 D31B
3
E 3 AD IK1
10
IK1
4 B4
1
2
2
1
2
1
2
1
4
3
4
3
4
3
4
3
HA1A A1A+ A1A– HA2A A2A+ A2A– HT1B OX1B O1B–OX2B O2B– HT2B
L–RG
R
W
BL L
G B
W
B–W L
L–R Y
L
W
B–W
B–W (
∗ 1 )
(
∗ 1 )
( ∗ 1 )
( ∗ 1 )
I 4
BR
( ∗ 1 ) (
∗ 1 )
(∗ 1 )
( ∗ 1 )
( ∗ 1 )
( ∗ 1 )
( ∗ 1 )
( ∗ 1 )
(
∗ 1 )
(∗ 1 )
( ∗ 1 )
( ∗ 1 )
( ∗ 1 )
( ∗ 1 )
(
∗ 1 ) (
∗ 2 )
(
∗ 2 )
(
∗ 2 )
( ∗ 2 )
H 8
H10 A 8 A 7
J1 2 (
A )
, J13 (
B )
∗
2 : Shielded
BR
( ∗ 1 )
Air Fuel Ratio Sensor
(
Bank 1 Sensor 1 )
Air Fuel Ratio Sensor
( Bank 2 Sensor 1 )
Alternator
Airbag Sensor Assembly
Engine and ECT ECU (
A/T )
Engine ECU (
M/T )
Heated Oxygen Sensor
(
Bank 1 Sensor 2 )
Heated Oxygen Sensor
( Bank 2 Sensor 2 )
Junction Connector
Stop Light SW
HT
+B
+B
HT
+B
HT
+B
HT E1
OX
E1
OX
AF–
AF+
AF–
AF+ ∗
4 : w/ Engine Immobiliser System
BR BR
AVENSIS (EWD526E)153
E 9
(
A )
, E10 (
B )
, E12 (
C )
, E13 (
D )
GR–R
GR–R
W–B (
RHD ) W–B
( RHD )
D
13 D11 D10D
9D 8
E 4
E 4E 4 3
2
3
2
3
2
3
2 IGT
IGF
IGT
IGF
IGT
IGF
IGT
IGF
IGF1 IGT4 IGT3IGT2IGT1
W–RW–R
L–Y
W–R
LG–B
W–R P
W–R
R–W
W–R W–R
I 4I 3I 2I 1
2 1
2
1
C
1C 2D 26 D34 D 27
I 5
A
EA E
AD AE
BDBD
BE
BE A
15
BR
BR
BR BR
G
BR R R
W W B
R
K 1
C 1
J1 2(
A )
, J13 (
B )
EOM
NE+
NE–
G2+
EKNK
KNK1
2
1
(
∗ 2 )
( ∗ 2 )
( ∗ 2 )
(
∗ 2 )
(
∗ 2 )
(
∗ 2 )
Camshaft
Position Sensor
Engine and ECT ECU (
A/T )
Engine ECU (
M/T ) Ignition Coil and
Igniter No. 1
Ignition Coil and
Igniter No. 2
Ignition Coil and
Igniter No. 3
Ignition Coil and
Igniter No. 4
Junction Connector
Knock SensorC 6Crankshaft
Position Sensor
26
C 2
D EFIO
EFII
D
T 8
B
14
15
(
∗ 4 )
IMI
IMO
(
∗ 4 )
(
∗ 1 )
(
∗ 1 )
2
1
Y–B
W–G
OC1+ OC1– 6
W
GR
7
B
27Camshaft Timing
Oil Control Valve
Transponder Key Computer
BR BR
154
AVENSIS (EWD526E)
Engine Control (1AZ–FE)
E02
W–B W–B
E01
A
GR–R
W–G W–L GR–R
W–G
W–L
W–B BR
W–B
971 3 45
TACH SILTC
TAC
SILTC CG
SG
∗
1 : Unleaded Gasoline
GR–R
W–G
15
WFSE WFSE
G
D6D7
EE
D 5
J1 6
E 9
(
A )
, E10 (
B )
, E12 (
C )
, E13 (
D )
B
16BAT
A
20
A
18
A
19
A5 BA
DB
CD
AE
CDAE
J 8
(
A )
, J 9 (
B )
,
J2 6 (
C )
, J27 (
D )
(
LHD )
( RHD )
( LHD )
( RHD ) A
GA B(
LHD )
CG A
GA B(
LHD )
CG (
RHD )
( RHD )
J 8(
A )
, J26 (
C )
DB
9DB 17
DA
30 DC
3
(
RHD )
(
LHD )(
LHD)
W–L
W–L
IO
7. 5A OBD2
DA
7
B
GR–R
(
LHD )
(
LHD )
From Power Source System (
See Page 120 )
W–B
( RHD )
W–B
( RHD ) 3C
E05
W–B
4C
W–B
E04
(
∗ 1 )
BR
(
∗ 1 )
DLC3
Engine and ECT ECU (
A/T )
Engine ECU (
M/T )
Junction
Connector
Junction
Connector
Junction
Connector
A
http://vnx.su

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