2005 TOYOTA AVENSIS blower motor

I30151
2
1
LHD
RHD
±
DIAGNOSTICS AIR CONDITIONING SYSTEM
05±1149
AVENSIS REPAIR MANUAL (RM1018E)
INSPECTION PROCEDURE
1PERFORM ACTUATOR CHECK
(a)Set to actuator check mode (See page 05±1091).
(b)Press the DEF switch and change to step operation.
(c)Check the air flow level by hand.
Display CodeBlower level
00
11
216
316
416
516
616
716
816
931
OKPROCEED TO NEXT CIRCUIT INSPECTION
SHOWN ON PROBLEM SYMPTOMS TABLE
NG
2INSPECT BLOWER W/FAN MOTOR SUB±ASSY
(a)Connect the positive (+) lead from the battery to terminal 1 and negative (±) to terminal 2.
Standard: Blower motor operates smoothly.
If operation is not as specified, replace the blower motor.
NGREPLACE BLOWER W/FAN MOTOR SUB±ASSY
OK
3CHECK HARNESS AND CONNECTOR(BLOWER W/FAN MOTOR SUB±ASSY ± BLOWER MOTOR CONTROL)
(a)Check for an open or short circuit in harness and connector between blow\
er w/fan motor sub±assy
and blower motor control (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK


I37588
B5
GND
1234
I36144
BLW
A16A15
I31456
GND
2V/
Division
500
s sec. / Division
05±1150
±
DIAGNOSTICS AIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
4CHECK HARNESS AND CONNECTOR(BLOWER MOTOR CONTROL ± BODY GROUND)
(a)Check for an open circuit in harness and connector be-
tween terminal GND of blower motor control and body
ground (See page 01±32).
NGREPAIR OR REPLACE HARNESS OR CONNECTOR
OK
5INSPECT AIR CONDITIONING AMPLIFIER(BLW)
(a)Remove the A/C amplifier with connectors being con- nected.
(b)Turn the ignition switch ON.
(c)Blower switch is ON.
(d)Measure the waveform between terminal BLW of A/C am- plifier and body ground.
OK: Pulse generation
HINT:

The correct waveform is as shown.

Waveform varies with blower level.
NGREPLACE AIR CONDITIONING AMPLIFIER
OK
6CHECK HARNESS OR CONNECTOR(A/C AMPLIFIER ± BLOWER MOTOR CONTROL)
(a)Check for an open or short circuit in harness and connector between A/C amplifier and\
blower motor
control (See page 01±32).
NG REPAIR OR REPLACE HARNESS ORCONNECTOR
OK
REPLACE BLOWER MOTOR CONTROL

I35394
Driver Side J/B
L2
DP
1
DN
5
DH B±G (*1)
B±L (*2)
G±Y9
DA
1
DH4
DF2
DF34
DA HTR HTR Relay
12
53
4L±B
To
Blower Motor GR±R
W±BA1617 A/C Control Assembly
HR
W±B
AM153
12IG1 Relay
I13
Ignition SW
G±R G±Y
AM1 IG1 1 3
G±Y
B±L (*2)1
ED1W (*2)Engine Room R/B No.3
3
3140A
ALT
1 23B (*2)
B±G (*1)W (*2) Engine Room R/B
No.1 & Engine Room J/B No.1
L
11B1 HTR
1 2
Engine Room R/B No.4
1
4C
4D1120A ALT (*3)
100A ALT (*4)
4B1
B±G (*1)
B (*2)
W±B
W±B FL MAIN
BatteryIJ
*1: Gasoline
*2: 1CD±FTV*3: 1AZ±FSE, 1AZ±FE
*4: 1ZZ±FE, 3ZZ±FE 05±1146
± DIAGNOSTICSAIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
HEATER RELAY CIRCUIT
CIRCUIT DESCRIPTION
The heater relay is switched on by signals from the A/C amplifier. It supplies power to the blower motor.
WIRING DIAGRAM
050U2±12

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

190NQ±01
A81052


A82936
Type A
Type B
BlueWhite
Red Green DarkClear or
light yellow
B00543
± STARTING & CHARGINGCHARGING SYSTEM (1ZZ±FE/3ZZ±FE)
19±5
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
(a) Check the electrolyte quantity of each cell.
(1) If the electrolyte is under the low level, replace the battery (or add distilled water if possible) and
check the charging system.
2. CHECK BATTERY VOLTAGE
(a) If it has not been 20 minutes since you drove the vehicle
or since the engine was stopped, turn the ignition switch
and the electrical system (headlight, blower motor, rear
defogger etc.) to the on position for 60 seconds. This will
remove the surface charge on the battery.
(b) Turn off the ignition switch and the electrical systems.
(c) Measure the battery voltage between the negative (±)
and positive (+) terminals of the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
HINT:
If the voltage is less than specification, charge the battery.
(d) Check the indicator as shown in the illustration.
HINT:
Indicator colorConditionType AType BCondition
GreenBlueOK
DarkWhiteCharging necessary
Clear or light yellowRedReplace
3. CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Check that the battery terminals are not loosened or corroded.
(b) Check the fusible links, high±current fuses and regular fuses.
4. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
HINT:

If any defect found, replace the drive belt.

Cracks on the rib side of a belt are considered acceptable.
If the belt has chunks missing from the ribs, it should be
replaced.

190NN±01
A81051
A81052


A82936
Type A
Type B
BlueWhite
Red Green DarkClear or
light yellow 19±26
± STARTING & CHARGINGCHARGING SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
(a) Check the electrolyte quantity of each cell.
(1) If the electrolyte is under the low level, replace the battery (or add distilled water if possible) and
check the charging system.
2. CHECK BATTERY SPECIFIC GRAVITY
(MAINTENANCE TYPE BATTERY)
(a) Check the specific gravity of each cell.
Standard specific gravity: 1.25 to 1.29 at 20
C (68
F)
HINT:
If the specific gravity is less than specification, charge the bat-
tery.
3. CHECK BATTERY VOLTAGE
(a) If it has not been 20 minutes since you drove the vehicle
or since the engine was stopped, turn the ignition switch
and the electrical system (headlight, blower motor, rear
defogger etc.) to the on position for 60 seconds. This will
remove the surface charge on the battery.
(b) Turn off the ignition switch and the electrical systems.
(c) Measure the battery voltage between the negative (±)
and positive (+) terminals of the battery.
Standard voltage: 12.5 to 12.9 V at 20
C (68
F)
HINT:
If the voltage is less than specification, charge the battery.
(d) Check the indicator as shown in the illustration.
(Non maintenance type battery)
HINT:
Indicator colorConditionType AType BCondition
GreenBlueGood
DarkWhiteCharging necessary
Clear or light yellowRedReplace
4. CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Check that the battery terminals are not loosened or corroded.
(b) Check the fusible links, high±current fuses and regular fuses.

190NT±01
A81052


A82936
Type A
Type B
BlueWhite
Red Green DarkClear or
light yellow
B00543
19±18
± STARTING & CHARGINGCHARGING SYSTEM (1AZ±FSE)
AVENSIS REPAIR MANUAL (RM1018E)
ON±VEHICLE INSPECTION
1. CHECK BATTERY ELECTROLYTE LEVEL
(a) Check the electrolyte quantity of each cell.
(1) If the electrolyte is under the low level, replace the battery (or add distilled water if possible) and
check the charging system.
2. CHECK BATTERY VOLTAGE
(a) If it has not been 20 minutes since you drove the vehicle
or since the engine was stopped, turn the ignition switch
and the electrical system (headlight, blower motor, rear
defogger etc.) to the on position for 60 seconds. This will
remove the surface charge on the battery.
(b) Turn off the ignition switch and the electrical systems.
(c) Measure the battery voltage between the negative (±)
and positive (+) terminals of the battery.
Standard voltage: 12.5 to 12.9 V at 20C (68F)
HINT:
If the voltage is less than specification, charge the battery.
(d) Check the indicator as shown in the illustration.
HINT:
Indicator colorConditionType AType BCondition
GreenBlueOK
DarkWhiteCharging necessary
Clear or light yellowRedReplace
3. CHECK BATTERY TERMINALS, FUSIBLE LINK AND FUSES
(a) Check that the battery terminals are not loosened or corroded.
(b) Check the fusible links, high±current fuses and regular fuses.
4. INSPECT DRIVE BELT
(a) Visually check the belt for excessive wear, frayed cords
etc.
HINT:

If any defect found, replace the drive belt.

Cracks on the rib side of a belt are considered acceptable.
If the belt has chunks missing from the ribs, it should be
replaced.