2005 TOYOTA AVENSIS Circuit

I35658
GND
ACC
N4
05±1470
±
DIAGNOSTICS NAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
1INSPECT NAVIGATION CONTROLLER HOLDER(ACC, GND)
(a)Remove the navigation controller holder.
(b)Check continuity between the terminals at each condi- tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
GND ± Body groundConstantContinuity
(c)Check the voltage between the terminals at each condi-tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
ACC ± GNDIgnition SW ACC10 to 14 V
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
2CHECK FOR PROBLEM SYMPTOMS TABLE
(a)Check the problem symptoms table (See page 05±1464).
ASuspected areas are cleared
BSuspected areas still exist
B PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05±1464)
A
REPLACE NAVIGATION CONTROLLER HOLDER

I34727
Center J/B
10
CB4
CEL±Y (*3)
L±Y (*4)
(*3) L±YFuse Block
66
21RAD No.2J/C
EE
J24 J25L±Y
(*4)N69Navigation ECU
B±W
B±W+B
Engine Room R/B No.1 and Engine Room J/B No.1
45
IF4 IF1 B±W
(*3) (*4) 1
1
12 1ADCC B (*2)
B±G (*1)
I13
Ignition SW
32
AM1 ACC
G±R34
11 DH
DH DNDB RAD No.1
AM1 GGRDriver Side J/B
FF FF
(*3) (*4)J8 J20
(*3) (*4)J8 J20GR18
N6ACC
B±L (*2) W (*2)
ED11
Engine Room R/B J/B
1
4A
1
4BALT
121
4D B±G (*1) B±G (*1)
B (*2)
B (*2)3
33ALT
12
FL MAIN
Battery
IP W (*2)W (*2)
Center J/B
W±B6
CA13
7
10 CF
CK
CHW±B (*3)
W±B
(*4)7
17 N5
N6SNSE
GND
*1: Gasoline
*2: 1CD±FTV*3: LHD
*4: RHDJ/C
Engine Room R/B No.3
W±B
± DIAGNOSTICSNAVIGATION SYSTEM
05±1467
AVENSIS REPAIR MANUAL (RM1018E)
POWER SOURCE CIRCUIT (NAVIGATION ECU)
WIRING DIAGRAM
05C3I±01

I32703
+B
ACC
SNSEGND
N5N6
05±1468
±
DIAGNOSTICS NAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1INSPECT NAVIGATION ECU(+B, ACC, SNSE, GND)
(a)Remove the navigation ECU.
(b)Check continuity between the terminals at each condi- tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
GND ± Body groundAlwaysContinuity
SNSE ± Body groundAlwaysContinuity
(c)Check the voltage between the terminals at each condi-
tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
+B ± GNDAlways10 to 14 V
ACC ± GNDIgnition SW ACC, ON10 to 14 V
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
2CHECK FOR PROBLEM SYMPTOMS TABLE
(a)Check the problem symptoms table (See page 05±1464).
ASuspected areas are cleared
BSuspected areas still exist
B PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05±1464)
A
REPLACE NAVIGATION ECU (See page 67±27)

I34729
G±R
I13
Ignition SW
ACC
IG1
ST2 AM2
AM1
G±R
3
41
B±L (*2)
B±G
(*1)
B±RDriver Side J/B
1
DH
DB DH
DH
DNDA
DB 3
5
1AM1
4
9
7 GAUGE1 1
2
53RAD No.1
IG1 RelayGR (*3)
HH F FJ/B
J9 J21 J8 J20
(*3) (*4) (*3) (*4)GR (*4)
GR
GRFF
J8 J20
(*3) (*4)
W±BMulti±display
(CRT Display) Display
14
M1 ACC
R±WCenter J/B
73
CA CFR±W3
M1
M1 15IG
ST1 B±W
Fuse Block
B±Y
6
6
6612
12ST
RAD No.2
B±W L±Y
(*3)L±Y
(*3) Center J/B
49
CE CB
J/C
L±Y
(*4) L±Y (*4)EE
J24 J251
M1
M1+B1
GND1 W±B
W±B25
Center J/B
56
CG CA
W±B
IP IJ B±G
(*1) 1
4A
1
2 1
4D
1
4B B±G (*1)
B±G (*1)ALT Engine Room J/B
1
2ALT
3
3
3 1
ED1B
(*2) B±L
(*2)W
(*2)
B (*2)
B±W
45
IE4 IP1B±W Engine Room R/B No.1 and Engine Room J/B No.1
(*3) (*4)
1
1
IE4 IP1 B±R
B±R
Battery1
11 DCC
AM21 2
1 2B
(*2)
B±G
(*1) 1A
*1: Gasoline
*2: 1CD±FTV*3: LHD
*4: RHD
G±Y
G
2
5
Engine Room R/B No.3
FL
MAIN
± DIAGNOSTICSNAVIGATION SYSTEM
05±1465
AVENSIS REPAIR MANUAL (RM1018E)
POWER SOURCE CIRCUIT (MULTI±DISPLAY (CRT DISPLAY)
DISPLAY)
WIRING DIAGRAM
05C3H±01

I34716
+B1
GND1
ACCST1
IG
M1
05±1466
±
DIAGNOSTICS NAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1 INSPECT MULTI±DISPLAY (CRT DISPLAY) DISPLAY(ACC, IG, ST1, +B1, GND1)
(a) Remove the multi±display (CRT display) display.
(b) Check continuity between the terminals at each condi- tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
GND1 ± Body groundAlwaysContinuity
(c) Check the voltage between the terminals at each condi-
tion, as shown in the chart.
Standard:
Tester connectionConditionSpecified condition
+B1 ± GND1Always10 to 14 V
IG ± GND1Ignition SW ON10 to 14 V
ACC ± GND1Ignition SW ACC10 to 14 V
ST1 ± GND1Ignition SW ON10 to 14 V
NG REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
2 CHECK FOR PROBLEM SYMPTOMS TABLE
(a)Check the problem symptoms table (See page 05±1464).
ASuspected areas are cleared
BSuspected areas still exist
B PROCEED TO NEXT CIRCUIT INSPECTION SHOWN ON PROBLEM SYMPTOMS TABLE
(See page 05±1464)
A
REPLACE MULTI±DISPLAY (CRT DISPLAY) DISPLAY (See page 67±6)

05C3G±01
05±1464
±
DIAGNOSTICS NAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
SymptomSuspect AreaSee page
Black screen
1. RAD No.2 fuse
2. Power source circuit (multi±display (CRT display)dis- play)
3. AVC±LAN circuit01±5
05±1465
05±1471
Navigation screen display nothing
1. RAD No.2 fuse
2. Power source circuit (navigation ECU)
3. AVC±LAN circuit01±5
05±1467
05±1471
Navigation screen is not stabilized
(Synchronous error)1. RAD No.2 fuse
2. Power source circuit (navigation ECU)
3. Navigation screen is not stabilized (Synchronous error)01±5
05±1467
05±1475
Color on navigation screen is unusual
(RGB signal error)
1. RAD No.2 fuse
2. Power source circuit (navigation ECU)
3. Color on navigation screen is unusual (RGB signal er-
ror)01±5
05±1467
05±1477
Front speaker (driver side) only is not heard±05±1479
Map disc cannot be inserted1. RAD No.2 fuse
2. Power source circuit (navigation ECU)01±5
05±1467
Current position cannot be displayed on screen
(disc caution screen does not change)±05±1483
Map is displayed in white or blue screen
(switched and vehicle position mark are displayed)±05±1484
Vehicle position is deviated from correct point badly1. Vehicle position is deviated from correct point badly.
2. GPS mark does not appear.05±1485
05±1487
GPS mark does not appear±05±1487
Vehicle position mark rotates without control
(map rotates without control)±05±1488
Driving directions are opposite to moving direction of vehicle posi-
tion mark±05±1490
A navigation controller assy does not operate1. A navigation controller assy does not operate
2. The system cannot be operated by the voice sound05±1491
05±1494
When mount the navigation controller to the navigation controller
system, it cannot be operated
1. RAD No.2 fuse
2. Power source circuit (navigation controller holder)
3. When mount the navigation controller holder to the navi-
gation controller system, it cannot be operated
4. The system cannot be operated by the voice sound01±5
05±1469
05±1492
05±1494
The system cannot be operated by the voice sound1. The system cannot be operated by the voice sound
2. AVC±LAN circuit05±1494
05±1471

05±1456
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Condition Diagnosis item
DF
*4Master ErrorDue to defective condition of component
with a display, master function is switched to
audio equipment.
Error occurs in communication between
sub±master (audio) and master component.
Check harness for power supply of radio
receiver assy.

Check harness for communication system
of radio receiver assy.
E4
*1Multiple Frame AbortMultiple frame transmission is aborted.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
(b) Logical address: 58 (Navigation ECU)
DTCDiagnosis itemConditionCountermeasure and inspected parts
10Gyro ErrorError in gyro sensor is detected.
(Abnormal value in voltage output from sen-
sor is detected for more than specified time.)Replace navigation ECU.
42Map Disc ErrorData cannot be read for a certain time due
to scratches or dirt on disc surface or inser-
tion of wrong disc.Inspect disc and replace as necessary.
(Visually check disc surface and wipe it with
a soft cloth.)
43Vehicle Signal ErrorInput error of vehicle signal is detected.
(When no vehicle signal has been input for a
certain time.)
Inspect wire harness.

If wire harness is normal, replace naviga-
tion ECU.
(c) Logical address: 58 (GPS receiver)
DTCDiagnosis itemConditionCountermeasure and inspected parts
11GPS Receiver ErrorOperation error of GPS receiver is detected.At an outdoor site with a clear view, operate
the system to display GPS data. If GPS
mark is not properly displayed after 15 min.
or more, replace navigation ECU.
40GPS Antenna ErrorOpen condition of GPS antenna is detected.
(Open circuit, connection failure of connec-
tors, etc.)Inspect antenna and replace as necessary.
41Power Supply Error of GPS AntennaAbnormal voltage of GPS antenna cable or
short circuit is detected.
Inspect GPS antenna and replace as nec-
essary. (When no continuity is identified
between connector's core and sealed part,
GPS antenna is normal.)

If GPS antenna is normal, replace naviga-
tion ECU.
3. MULTI±DISPLAY (CRT DISPLAY) DISPLAY (Physical address: 110)
HINT:

*1: Even if no failure is detected, it may be stored depending on the battery condition or voltage for
starting an engine.

*2: It is stored in 180 sec. after the power supply connector is pulled out after engine start.

*3: It may be stored when the ignition switch is turned again after engine start.

*4: It may be stored when the ignition switch is turned in 1 min. again after engine start.
(a) Logical address: 01 (Communication control)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
21ROM ErrorAbnormal condition of ROM is detected.Replace multi±display (CRT display) display.
22RAM ErrorAbnormal condition of RAM is detected.Replace multi±display (CRT display) display.
D5
*1Registered component disconnectedComponent shown by auxiliary code is or
was disconnected from system with ignition
switch ACC or ON.
Communication with component shown by
auxiliary code is not ensured when engine is
started.
Check harness for power supply of compo-
nent shown by auxiliary code.

Check harness for communication system
of component shown by auxiliary code.
D8
*2No response to connection checkComponent shown by auxiliary code is or
was disconnected from system after engine
start.
Check harness for power supply of compo-
nent shown by sub± code.

Check harness for communication system
of component shown by auxiliary code.

± DIAGNOSTICSNAVIGATION SYSTEM
05±1457
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Diagnosis content Diagnosis item
D9
*1Last Mode ErrorComponent operated (sound and/or image
was provided) before engine stop is or was
disconnected with ignition switch ACC or
ON.
Check harness for power supply of compo-
nent shown by sub±code.

Check harness for communication system
of component shown by sub±code.
DB
*1Mode Status ErrorDual alarm is detected.
Check harness for power supply system of
component shown by sub±auxiliary code.

Check harness for communication system
of component shown by sub±code.
DC
*4Transmission ErrorTransmission to component shown by auxil-
iary code has been failed.
(This code does not necessarily mean actu-
al failure.)If same auxiliary code is recorded in order
component(s), check harness for power
supply and communication system of all
components shown by code.
DE
*3Slave Reset (Momentary Interruption)After engine start, slave component has
been disconnected.
DB
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.
E2ON/OFF Instruction Parameter ErrorError is detected in ON/OFF control com-
mand from radio receiver assy.Replace radio receiver assy.
E3
*1Registration Request Transmission
Registration Request command is output
from slave component.

By reception of connection check instruc-
tion, Registration Request command is out-
put from sub±master component.Since this DTC is provided for engineering,
it may be detected when no actual failure
exists.
(b) Logical address: 21 (Switch)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
10Panel Switch ErrorError in panel switch input part is detected.
(Error in switch control part, or internal com-
munication error with switch control part is
detected.)
Inspect all switches on panel switch test
screen in display check mode. If any of
them do not function, replace multi±display
(CRT display) display.

If all switches function without problem, ob-
serve them for a while.
11Touch Switch ErrorError in touch switch sensor is detected.
(Light level of LED is detected to be less
than a fixed value.)
Inspect all touch switches on touch switch
test screen in display check mode. If any
of lines does not react, replace multi±dis-
play (CRT display) display.

If all of vertical and horizontal lines react
normally, observe them for a while.
(c) Logical address: 34 (Front passenger monitor)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
10Error in Picture CircuitError in power supply system for picture cir-
cuit (abnormal voltage) is detected.Replace multi±display (CRT display) display.
11Back±light Error (No current)Decline in power output from inverter circuit
for back±light.Replace multi±display (CRT display) display.
12Back±light Error (Excess current)Excess power output from inverter circuit for
back±light.Replace multi±display (CRT display) display.