2005 TOYOTA AVENSIS diagnostic

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

05C3X±01
I35876
N4N3N5
± DIAGNOSTICSNAVIGATION SYSTEM
05±1461
AVENSIS REPAIR MANUAL (RM1018E)
TERMINALS OF ECU
1. NAVIGATION ECU
Symbols (Terminals No.)Wiring ColorConditionSpecification
N5±3 (MIC+) ±
N5±6 (SGND)B ± BRAudio system is playingA waveform synchronized
with sounds is output
N5±4 (MACC) ±
N5±6 (SGND)R ± BRIgnition switch ACC4 to 6 V
N5±5 (MIC±) ±
N5±6 (SGND)BR ± BRAlwaysContinuity
N5±6 (SGND) ±
Body groundBR ± Body groundAlwaysContinuity
N5±7 (SNSE) ±
Body groundW±B ± Body groundAlwaysContinuity
N3±1 (AUI+) ±
N3±17 (GND)R*1, W*2 ± W±BAudio system is soundingA waveform synchronized
with sounds is output
N3±2 (AUO+) ±
N3±17 (GND)P*1, LG*2 ± W±BSound quality test±
N3±5 (SPD) ±
N3±17 (GND)V±W ± W±BSee ºVehicle Signal Check Modeº±
N3±9 (+B) ±
N3±17 (GND)L±Y ± W±BAlwaysBelow 1 V
N3±10 (AUI±) ±
N3±17 (GND)LG*1, R*2 ± W±BAudio system is playingA waveform synchronized
with sounds is output
N3±11 (AUO±) ±
N3±17 (GND)V*1, L*2 ± W±BSound quality test±
N3±14 (REV) ±
N3±17 (GND)R±Y ± W±BSee ºVehicle Signal Check Modeº±
N3±17 (GND) ±
Body groundW±B ± Body groundAlwaysContinuity
N3±18 (ACC) ±
N3±17 (GND)GR ± W±BIgnition switch ACC10 to 14 V
N4±1 (VR) ±
N4±6 (VG)Y ± ShieldedIgnition switch OFFBelow 1 V
N4±2 (R) ±
N4±6 (VG)R ± ShieldedNavigation display is displayedPulse generation *2
N4±3 (B) ±
N4±6 (VG)B ± ShieldedNavigation display is displayedPulse generation *2
N4±5 (TX+)VSee ºService Check Modeº±
N4±6 (VG) ±
Body groundShielded ± Body
groundAlwaysContinuity
N4±7 (G) ±
N4±6 (VG)G ± ShieldedNavigation display is displayedPulse generation *2

I34717
M1M2M3 05±1462
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)Symbols (Terminals No.)Specification Condition Wiring Color
N4±8 (SYNC) ±
N4±6 (VG)W ± ShieldedNavigation display is displayedPulse generation *1
N4±10 (TX±)LGSee ºService Check Modeº±
*1: LHD
*2: RHD
2. MULTI±DISPLAY (CRT DISPLAY) DISPLAY
Symbols (Terminals No.)Wiring ColorConditionSpecification
M1±1 (+B1) ±
M2±1 (GND2)L±Y ± W±BAlways10 to 14 V
M1±3 (IG) ±
M2±1 (GND2)R±W ± W±BIgnition switch ON10 to 14 V
M1±4 (SPD) ±
M2±1 (GND2)V±W ± W±BSee ºVehicle Signal Checkº±
M1±5 (GTX+)PSee ºService Check Modeº±
M1±10 (RE1) ±
M1±22 (SGD1)R ± ShieldedIgnition switch ACCApprox. 3.3 V
M1±12 (TX3+)G±YSee ºService Check Modeº±
M1±14 (ACC) ±
M2±1 (GND2)GR ± W±BIgnition switch ACC10 to 14 V
M1±15 (ST1) ±
M2±1 (GND2)B±W ± W±BIgnition switch START10 to 14 V
M1±16 (TC) ±
M2±1 (GND2)W±L ± W±BIgnition switch OFF and connect terminals TC and GND1 of
check connectorContinuity
M1±17 (PKB) ±
M2±1 (GND2)B±W ± W±BSee ºVehicle Signal Check Modeº±
M1±18 (GTX±)LGSee ºService Check Modeº±
M1±22 (SGD1) ±
Body groundShielded ± Body
groundAlwaysContinuity
M1±24 (TX3±)GSee ºService Check Modeº±
M1±25 (GND1) ±
Body groundW±B ± Body groundAlwaysContinuity
M2±1 (GND1) ±
M1±6 (VG)Y ± ShieldedIgnition switch OFFBelow 1 V
M2±2 (R) ±
M1±6 (VG)R ± ShieldedNavigation display is displayedPulse generation *2
M±2 (B) ± M1±6
(B ± VG)B ± ShieldedNavigation display is displayedPulse generation *2
M2±5 (CTX+)VSee ºService Check Modeº±
M2±6 (VG) ±
Body groundShielded ± Body
groundAlwaysContinuity
M2±7 (G) ± M1±6 (VG)G ± ShieldedNavigation display is displayedPulse generation *2

I35656
C10
I30915
I30916
± DIAGNOSTICSNAVIGATION SYSTEM
05±1463
AVENSIS REPAIR MANUAL (RM1018E)Symbols (Terminals No.)Specification Condition Wiring Color
M2±8 (SYNC) ±
M1±6 (VG)W ± ShieldedNavigation display is displayedPulse generation *1
M2±10 (CTX±)LGSee ºService Check Modeº±
M3±1 (GND2) ±
Body groundW±B ± Body groundAlwaysContinuity
3. BODY ECU (COMBINATION METER ASSY)
Symbols (Terminals No.)Wiring ColorConditionSpecification
C10±3 (GTX+)G±YSee ºService Check Modeº±
C10±4 (GTX±)GSee ºService Check Modeº±
(a) *1: Oscilloscope wave
Terminal to be measured: SYNC ± GND
Setting for measurement: 500 mV/DIV10±
s/DIV
Condition: Navigation display is displayed.
(b) *2: Oscilloscope wave
Terminal to be measured: R, G, B ± GND
Setting for measurement: 200 mV/DIV10±
s/DIV
Condition: Navigation map is switched.

05C3F±01
I34714
Driver Side J/B

RAD No.1 Fuse

AM1 Fuse

GAUGE1 Fuse

IG1 RelayFront No.1
Speaker AssyMulti±display
(CRT display)
Display
Steering Pad
Switch LH Engine Room R/B No.1 and
Engine Room J/B No.1

DCC Fuse

AM2 Fuse
Front No.2
Speaker Assy
Steering Pad
Switch RH Sub R/B (LHD)
Sub R/B (RHD)
Navigation
Antenna AssyTelephone Microphone AssyRadio Receiver Assy
Navigation Controller Assy Navigation Controller Holder Navigation ECU Combination
Meter Assy
(Body ECU)
Body ECU
(Combination Meter Assy)
05±1460
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
LOCATION

05C3E±01
± DIAGNOSTICSNAVIGATION SYSTEM
05±1453
AVENSIS REPAIR MANUAL (RM1018E)
DIAGNOSTIC TROUBLE CODE CHART
TermsMeaning
Physical addressThree±digit code (shown in hexadecimal) which is given to each component com-
prising the AVC±LAN.
Corresponding to the function, individual symbols are specified.
Logical addressTwo±digit code (shown in hexadecimal) which is given to each function comprising
the inner system of the AVC±LAN.
1. RADIO RECEIVER ASSY (Physical address: 190)
HINT:

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

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

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

*4: This code may be stored when the ignition switch is turned again in 1 min. after engine start.
(a) Logical address: 01 (Communication control)
DTCDiagnosis itemConditionCountermeasure and inspected parts
D5
*1Registered component disconnectedComponent shown by sub±code is or was
disconnected from system with ignition
switch ACC or ON.
Communication with component shown by
sub±code is not ensured when engine is
started.
Check harness for power supply of compo-
nent shown by sub±code.

Check harness for communication system
of component shown by sub±code.
D6
*1Absence of MasterComponent in which this code is recorded
has been disconnected from system with
ignition switch ACC or ON. Or, when this
code was recorded, multi±display (CRT dis-
play) display was disconnected.
Check harness for power supply system of
multi±display (CRT display) display.

Check harness for communication system
of multi±display (CRT display) display.
D8
*2No response to connection checkComponent shown by sub±code is or was
disconnected from system after engine is
started.
Check harness for power supply of compo-
nent shown by sub±code.

Check harness for communication system
of component shown by sub±code.
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.
DANo Response to ON/OFF InstructionNo response is identified when changing
mode (audio and visual mode change).
Detected when sound and picture does not
change by button operation
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.

If error occurs again, replace component
shown by auxiliary code
DB
*1Mode Status ErrorDual alarm is detected.
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.
DC
*4Transmission ErrorTransmission to component shown by sub±
code has been failed.
(This code does not necessarily mean actu-
al failure.)If same sub±code is recorded in other com-
ponent(s), check harness for power supply
and communication system of all compo-
nents shown by code.
DD
*4Master Reset (Momentary Interruption)After engine is started, multi±display (CRT
display) display was disconnected from sys-
tem.
Check harness for power supply system of
multi±display (CRT display) display.

Check harness for communication system
of multi±display (CRT display) display.

If this error occurs frequently, replace mul-
ti±display (CRT display) display.

05±1454
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E) DTCCountermeasure and inspected parts Condition Diagnosis item
DE
*3Slave Reset (Momentary Interruption)After engine start, slave component has
been disconnected.
Check harness for power supply system of
component shown by sub±code.

Check harness for communication system
of component shown by sub±code.
DF
*5Master 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 multi±
display (CRT display) display.

Check harness for communication system
of multi±display (CRT display) display.
E0
*1Registration Completion Instruction ErrorºRegistration Completion Instructionº com-
mand from master cannot be received.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
E1
*1Audio processor ON errorWhile source equipment is operating, AMP
output is stopped.
Check harness for power supply of radio
receiver assy.

Check harness for communication system
of radio receiver assy.
E2ON/OFF Instruction Parameter ErrorError occurs in ON/OFF controlling com-
mand from multi±display (CRT display) dis-
play.Replace multi±display (CRT display) display.
E3
*1Registration Request TransmissionRegistration Request command is output
from slave component.
Receiving Connection Check Instruction,
Registration Request command is output
from sub±master component.Since this DTC is provided for engineering
purpose, it may be detected when no actual
failure exists.
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: 21 (Switch)
DTCDiagnosis itemConditionCountermeasure 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 does not function, replace radio re-
ceiver assy.

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 do not react, replace radio receiver
assy.

If all of vertical and horizontal lines react
normally, observe them for a while.
(c) Logical address: 61 (Cassette tape player's switch)
DTCDiagnosis itemConditionCountermeasure and inspected parts
40Mechanical Error of MediaMalfunction due to mechanical failure is
identified.
Or cassette tape is cut or entangled.
Inspect cassette tape.

Replace radio receiver assy.
(d) Logical address: 62 (CD player)
DTCDiagnosis itemDiagnosis contentCountermeasure and inspected parts
42No Disc ReadoutDisc cannot be read.
Inspect CD.

Replace radio receiver assy.
44CD player ErrorError is detected in CD player.Replace radio receiver assy.
45EJECT ErrorMagazine cannot be ejected.Replace radio receiver assy.
46Scratched/Reversed DiscScratches or dirt is found on CD surface or
CD is set upside down.Inspect CD.