turn signal TOYOTA AVENSIS 2005 Service Workshop Manual

I35378
A25
Air Vent Mode Control Servo Motor A/C Control Assembly
M
FACE 5L±B
A15 AOF4
DEF 4LG±B
A15 AOD3
PT 3GR±R
A16 TPM19
VZ 2BR±W
A16 S5±314
GND 1G±W
A15 SG±315 05±1136
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC 43 AIR OUTLET DAMPER CONTROL
SERVOMOTOR CIRCUIT
CIRCUIT DESCRIPTION
This circuit turns the servomotor and changes each mode damper position by the signals from the A/C ampli-
fier assy. When the AUTO switch is on, the A/C amplifier changes the mode automatically between ºFACEº,
ºBI±LEVELº, ºFOOTº and ºFOOT/DEFº according to the temperature setting.
DTC No.Detection ItemTrouble Area
43Air mode damper position sensor value does not change even
if A/C amplifier operated mode damper control servomotor.

Mode damper servo sub±assy (mode damper control)

Harness or connector between mode damper servo sub±
assy (mode damper control) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
05A87±02

I35376
A3
A/C Pressure Sensor A/C Control Assembly
VC
3B±W
IE2 A16 S516 7
B±W
GND
1G±W
IE2 A16 SG18 8
G±W
VOUT
2L±W
IE2 A16 PRE7 17
L±W 05±1116
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTC 23 PRESSURE SWITCH CIRCUIT
CIRCUIT DESCRIPTION
The pressure sensor sends the appropriate signals to the A/C amplifier assy when the A/C refrigerant pres-
sure drops too low or rises too high. When the A/C amplifier receives these signals, it outputs signals though
the A/C amplifier to switch OFF the compressor relay and turns the magnetic clutch OFF.
DTC No.Detection ItemTrouble Area
23

Open in pressure sensor circuit.

Abnormal refrigerant pressure.
below 196 kPa (2.0 kgf/cm
2, 28 psi)
over 3,140 kPa (32.0 kgf/cm2, 455 psi)

A/C tube assy (pressure sensor)

Harness or connector between A/C tube assy (pressure sen-
sor) and A/C amplifier assy

A/C amplifier assy
WIRING DIAGRAM
0564B±07

I36132
Center J/BP5
Power Heater SWPower Heater ECU
CB1
CK12
R±W G±Y G±Y
IE612
P13
SW
W±B
R±W36IG IN
2 E
Driver Side J/B
B±L
DN
DH5 1 IG1 Relay HTR
DC
DA9 6
DH1W±B
AM1
I13
Ignition SW
1 IG1 AM1 3G±R
Engine Room R/B No.3
ALT
ED11
B±L W
33
21
B
FL MAIN
Battery
IJ IKA
J15
J/C 53
12
G±Y
± DIAGNOSTICSCOMBUSTION TYPE POWER HEATER SYSTEM
05±1173
AVENSIS REPAIR MANUAL (RM1018E)
POWER HEATER SWITCH CIRCUIT
CIRCUIT DESCRIPTION
When the power heter switch is turned on, the power heater ECU sends the drive signal to the fuel pump,
causing the combustion type power heater to operate.
WIRING DIAGRAM
05C81±01




H41086
DLC3
CG TC DTC B1100/31
05±1282
±
DIAGNOSTICS SUPPLEMENTAL RESTRAINT SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
DTCB1100/31AIRBAG SENSOR ASSY CENTER MALFUNCTION
CIRCUIT DESCRIPTION
The airbag sensor assy center consists of the airbag sensor, the safing sensor, the drive circuit, the diagnosis
circuit and the ignition control, etc.
If the airbag sensor assy center receives signals from the airbag sensor, it judges whether or not the SRS
should be activated.
DTC B1100/31 is recorded when a malfunction in the airbag sensor assy center i\
s detected.
DTC No.DTC Detecting ConditionTrouble Area
B1100/31
Airbag sensor assy center malfunction

Half connection detection malfunction
Airbag sensor assy center

Airbag sensor assy center connector
HINT:
When a malfunction code other than code B1100/31 is displayed at the same time, first repair the malfunction
indicated by the malfunction code other than code B1100/31.
INSPECTION PROCEDURE
1CHECK DTC
(a)Turn the ignition switch to the LOCK position.
(b)Disconnect the negative (±) terminal cable from the bat-
tery, and wait for at least 90 seconds.
(c)Connect the negative (±) terminal cable to the battery,
and wait for at least 2 seconds.
(d)Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(e)Clear the stored DTCs in the memory (See page
05±1184).
(f) Turn the ignition switch to the LOCK position.
(g) Turn the ignition switch to the ON position, and wait for at least 10 seconds.
(h)Check the DTCs (See page 05±1184). OK:
DTC B1100/31 is not output.
HINT:
Codes other than code B1100/31 may be output at this time, but
they are not related to this check.
NG Go to step 2
OK
USE SIMULATION METHOD TO CHECK
05C5X±01

05±1404
± DIAGNOSTICSAUDIO SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
2. IDENTIFICATION OF NOISE SOURCE
(a) Identify the condition under which the noise occurs, and
check the noise filter on the related part.
Condition in which noise occursNoise Source
Depressing the acceleration pedal increases noise, and stopping the engine
erases the noise immediately.Generator
Noise occurs during the A/C or the heater operation.Blower motor
Rapid acceleration while driving on the unpaved road or after the IG switch is
turned ON makes noise.Fuel pump
Pressing and then releasing the horn switch, and keeping pressing the horn
switch makes unusual noise.Horn
Stopping the engine erases small noise that has been heard.Ignition
Noise occurs synchronously with the turn signal flash.Flasher
Noise occurs during the window washer operation.Washer
Noise occurs during the engine running, and it continues after the engine
stops.Engine coolant temperature sensor
Noise occurs during the wiper operation.Wiper
Noise occurs when the brake pedal is depressed.Stop light switch
Others.Static electricity stored on the vehicle
(b) Reference:

Make sure first that there is no noise from outside.
Failing to do so makes the noise source detection
difficult and leads to misunderstanding.

The noise should be removed in descending order
of loudness.

Setting the radio untuned makes noise noticeable,
making the recognition of the phenomenon easier.

± DIAGNOSTICSAUDIO SYSTEM
05±1419
AVENSIS REPAIR MANUAL (RM1018E)
NOISE OCCURS
INSPECTION PROCEDURE
1 CHECK OF SPEAKER INSTALLATION
(a) Check the speaker installation condition.
(1) Check that each speaker is securely installed.
Standard: Malfunction disappears.
HINT:
The radio is equipped with the noise prevention system that works against only the excessively large noise,
thereby excessively large noise do not occur in the radio. If large noise occurs, check whether or not the earth
on the antenna installation part and the proper noise±prevention equipment are all installed, and whether
or not the improper wiring is held.
Condition in which noise occursNoise type
Depressing the acceleration pedal increases noise, and stopping the engine
erases the noise immediately.Alternator noise
Noise occurs during the A/C or the heater operation.Blower motor noise
Rapid acceleration during the drive on the unpaved road or after the IG
switch is turned ON makes noise.Fuel pump noise
Pressing and then releasing the horn switch, and keeping pressing the horn
switch makes noise.Horn noise
Stopping the engine erases the small noise that has been heard.Ignition noise
Noise occurs in turn with the blink of the turn signal flash.Flasher noise
Noise occurs during the window washer operation.Washer noise
Noise occurs during the engine running, and it continues to occur after the
engine is stopped.Water temperature sensor noise
Noise occurs during the wiper operation.Wiper noise
Noise occurs when the brake pedal is depressed.Stop light switch noise
Others.Static electricity on the vehicle
HINT:

Identify the condition under which the noise occurs, and check the noise filter on the related part.

Make sure first that there is no noise from outside. Failing to do so makes the noise occurrence source
detection impossible and leads to misunderstanding.

The noise should be removed in descending order of loudness.
NG INSTALL IT PROPERLY
OK
IDENTIFICATION OF NOISE SOURCE
054A1±09

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.

05C3D±01
I34712Multi±display (CRT display) Display Body ECU Radio Receiver Assy Navigation ECU
: AVC±LAN
05±1438
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PRE±CHECK
1. USER TROUBLES UNDER NORMAL CONDITION OF THE NAVIGATION SYSTEM
(a) Voice guidance does not perform in the following situation even if the system is in normal condition.
(1) The destination is not set up.
(2) The vehicle is not driving on the set route. (The remaining distance is not displayed at the lower
left of the map screen that tells the current position of the vehicle.)
(3) ºGuidance in Other Modesº is not set up. (In this case no voice guidance is given except on the
map screen.)
(b) The vehicle icon or map turns around arbitrarily on the screen even when the system is in normal condi-
tion.
If the ignition switch is turned to ºACCº or ºONº while the vehicle is turning around such as being on a turnta-
ble, the Navigation System memorizes the angle speed of that moment as the standard figure. To solve this
problem, at the vehicle speed of 0 MPH (0 km/h), turn off the ignition switch, and then turn it to ºACCº or ºONº
again to see whether any trouble occurs again.
2. INSPECTION OF THE LOCATION WITH TROUBLE OCCURRENCE
(a) Check whether the wrong display of the vehicle icon appears in a certain location or in several loca-
tions.
HINT:
It is difficult to determine the accurate vehicle position when driving on a freeway, a looped road or a road
which runs in parallel with another, and immediately after going out of the parking area. In such cases the
vehicle icon can be displayed off the real position of the vehicle.
3. OUTLINE OF AVC±LAN
(a) Each unit of the navigation system connected with AVC±LAN (communication bus) transmits a signal
of each switch. When +B or GND shorts out in this AVC±LAN, the navigation system will not function
normally as the communication is discontinued. In this AVC±LAN, the multi±display (CRT display) dis-
play becomes the master of the communication, and resistance necessary for transmitting the signals
is stored in the radio receiver assy.

I34702
*2 *4
*3 *1
I34711
Select a
color barEnter switch*1
05±1446
± DIAGNOSTICSNAVIGATION SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
(a) Display Check
DisplayContents
Color Bar Check/*1Color display is checked.
Remote Commander Check/*2Operating condition of navigation con-
troller assy is checked.
Vehicle Signal Check/*3Status of the vehicle signal which has
been loaded into the display is checked.
HINT:
In Display Check, above checks can be performed.
Display ItemMeaning
MENU/*4Pressing this switch returns to the ºDiag-
nosis MENUº.
(b) Color Bar Check Mode
(1) Start the Diagnosis System.
(2) Select ºMENUº.
(3) Select ºDisplay Checkº.
(4) Select ºColor Bar Checkº.
(5) Make sure that each color name is corresponding
to each color on the bar.
HINT:
Select Black, Red, Green, Blue, White and Stripe to display se-
lected colors and stripes on the entire screen.
(6) Compare with the Color Bar Check Mode in the
Navigation Check and make sure that no difference
is found.
Display ItemMeaning
Disp MENU/*1Pressing this switch returns to the ºDis-
play Checkº.

I34703
*1
*2
I34704
*1
± DIAGNOSTICSNAVIGATION SYSTEM
05±1447
AVENSIS REPAIR MANUAL (RM1018E)
(c) Remote Commander Check
(1) Start the Diagnosis system.
(2) Select ºMENUº.
(3) Select ºDisplay Checkº.
(4) Select ºRemote Commander Checkº.
(5) Press each switch and make sure that it corre-
sponds to the display on the screen.
Display DataDescription
Names of push±button switches/*1Names of push±button switches pressed
are navigation controller assy.
Disp MENU*2Pressing this switch returns to the ºDis-
play Checkº.
(d) Display Vehicle Signal Check
(1) Start the Diagnosis system.
(2) Select ºMENUº.
(3) Select ºDisplay Checkº.
(4) Select ºVehicle Signal Checkº.
(5) Check the status of the vehicle signal (Battery, IG,
PKB, SPEED, TAIL) loaded into the display.
HINT:
Vehicle signal data is updated every 1 second.
Display ItemMeaning
BatteryBattery voltage is displayed by V.
IGIG (Signal State) is displayed by ON/
OFF.
PKBIG (Signal State) is displayed by ON/
OFF. (IG switch ON)
SPEEDSPEED is displayed by calculating the
vehicle speed from the pulse signal.
TAILTAIL (Signal State) is displayed by ON/
OFF.
Disp MENU/*1Pressing this switch returns to the ºDis-
play Checkº.