2005 TOYOTA AVENSIS navigation system

010B6±13
±
INTRODUCTION HOW 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.

022KX±01
± PREPARATIONAUDIO & VISUAL SYSTEM
02±55
AVENSIS REPAIR MANUAL (RM1018E)
AUDIO & VISUAL SYSTEM
PREPARATION
Recomended Tools
09042±00010Torx Socket T30NAVIGATION ANTENNA ASSY
09042±00030Torx Socket T20CIGARETTE LIGHTER ASSY
09050±00032Air DrillFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
(09050±00210)Chuck SetFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
(09050±00220)HandleFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
09050±20010Air RiveterFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
(09050±02010)Dust CapFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
(09050±02020)Nose Piece No.1FRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
09060±60350Revet CutterFRONT NO.1 SPEAKER ASSY
REAR SPEAKER ASSY
09070±20010Moulding RemoverRADIO RECEIVER ASSY
ANTENNA CORD SUB±ASSY
POWER POINT SOCKET ASSY
NAVIGATION ANTENNA ASSY
ANTENNA CORD SUB±ASSY NO.3
AMPLIFIER ANTENNA
ASSY(LIFTBACK MODELS)
AMPLIFIER ANTENNA ASSY(SEDAN
MODELS)
AMPLIFIER ANTENNA
ASSY(WAGON MODELS)
Equipment
Torque wrench

H43588
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TCW−
L
J21D
J/C
(*2) TC
(*2)
W− L
(*1) J20
B
(*2)
J8
B
(*1) W−
L
DB17
DD8
J8 B
(*1) A27
19
13 W−
L
1AZ−
FSE, 1CD− FTV Engine:
CG TC TC
TC
TC
W−
L
W− L
W− L
W−
L
W−B
W−
B
W−
B
W− B
(*1)
(*2) J9 J21
DD
(*2)(*1)
DL DC
15
3
E9
S1
S2
20
17
25
(*2)
A
J16
J/C
A
(*1)
IO IP
(*3)
M1
16
4
CA
CB 3
6
(*6)
(*4, *5)
Skid Control ECU with Actuator Skid Control ECU with Actuator ECM
Multi− Display
*1: LHD *2: RHD
*3: w/ Navigation System (Map Type) *4:
1AZ− FSE
*5: 1CD− FTV (w/ VSC)
*6: 1CD− FTV (w/ ABS)
Center J/B
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05−1391
TC TERMINAL CIRCUIT
CIRCUIT DESCRIPTION
DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the SRS warning light.
WIRING DIAGRAM
05C65 −01

H43587
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TC W−
L
J8 TC
(*2)W−
L
(*1) W−
L
DB 17
DD8
B
(*1) A2719
*1: LHD W−
L
B
13
1AZ−
FE Engine:
W−L
W−
L
W−L
J8
J9 D
TCTC
TC
CG
W−
B
W− B
W− B W−
B
W−
L
M1 16
4
AJ16
J/C
A
IO IP
(*2)
(*1) (*3)
(*2)
(*3)
(*1) CA
CB 6
3 Center J/B J/C
DC
DL 3
15
E920
S2 25 ECM
Skid Control ECU with Actuator
Multi−
Display
*2: RHD
*3: w/ Navigation System (Map Type)
05−
1392
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM

H43589
Driver Side J/BAirbag Sensor Assy Center
D5 DLC3
TCW−
L
J8 TC
(*2)
(*1)
W−L
DB 17
DD8
B
(*1) A27
19
*1: LHD B
13
1ZZ−
FE, 3ZZ −FE Engine:
W−L
W−
L
W−L
J8
J9 D
TCTC
TC
CG
W−
B
W− B
W−B W−
B
M116
4
AJ16
J/C
A
IO IP
(*2)
(*1) (*2)
(*1) CA
CB 6
3 J/C
DC
DL 3
15
E920
S2 25 ECM
Skid Control ECU with Actuator Multi−Display
*2: RHD
*3: w/ Navigation System (Map Type) B
B
J20 J20
(*1)
J9D
D
D
J21 J21
(*2)
TC
W−
L
W−
B(*1)
E15 4
W−L(*1) Center J/B
(*2) (*1)(*
1) (*2)
(*3)
W−
L
(*2) W−
L
(*2)
EPS ECU
−
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
05−1392-1
HINT:
When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal
ground short in each ECU is suspected.

05C3C±01
NAVIGATION SYSTEM Check SheetInspector 's name:
Customer 's Name
Date of VehicleVIN
Production Date
Licence No.
Odometer Reading / /km
Mile
Frequency Problem Occurs
/ /

Always
Intermittent ( Times a day) Brought in

Cursor movement is defective.
Date Problem First Occurred
Problem Symptom

Cursor does not move.

GPS mark does not appear.

Map is not displayed.

Screen is dark.

Screen is white.

Color is not uniform.

Screen is out of order.

Cannot operate with navigation controller assy
Others ( )

Others ( )

Others ( ) Navigation
malfunction
Display
malfunction
Control
Switch
malfunction
Navigation ECU
Radio Receiver Assy
DTC Check
Parts name 1st time malfunction code. 2nd time malfunction code.
Multi±display (CRT display) Display
Body ECU
± DIAGNOSTICSNAVIGATION SYSTEM
05±1437
AVENSIS REPAIR MANUAL (RM1018E)
CUSTOMER PROBLEM ANALYSIS CHECK

05C3B±01
±
DIAGNOSTICS NAVIGATION SYSTEM
05±1435
AVENSIS REPAIR MANUAL (RM1018E)
NAVIGATION SYSTEM
HOW TO PROCEED WITH TROUBLESHOOTING
1Vehicle Brought to Workshop
2Customer Problem Analysis (See page 05±1437)
3 Problem Symptom Confirmation
Symptom does not occur (Go to step 4)
Symptom occurs (Go to step 5)
4Symptom Simulation (See page 01±32)
5DTC Check (See page 05±1438)
Normal code (Go to step 7)
Malfunction code (Go to step 6)
6DTC Chart (See page 05±1453)
Go to step 8
7Problem Symptoms Table (See page 05±1464)
8 Circuit Inspection and Part Inspection
9 Indemnification of Problem

05±1436
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
10 Repair or Replace
11 Confirmation Test
End