coolant temperature TOYOTA AVENSIS 2003 Service Owner's Guide

190JE±02
A82619
Light Lightning Time
Water Temperature
±20 0 28
0
±4 32 (
F)
(

C)
82.4
(sec.)
10
3
1
A72562
Pre±heating Time (sec)Battery Voltage [V]
A80155
After Glow Time
Water Temperature 68 104 (

F)
020 40(

C)
(sec.)
1
19±30
±
STARTING & CHARGING PRE±HEATING SYSTEM (1CD±FTV)
AVENSIS REPAIR MANUAL (RM1018E)
PRE±HEATING SYSTEM (1CD±FTV)
ON±VEHICLE INSPECTION
NOTICE:
Turn the ignition switch OFF for 60 seconds before performing the followi\
ng inspections. 1. INSPECT LIGHTING DURATION OF GLOW INDICA-TOR LIGHT
(a) Turn the ignition switch ON, and measure the lighting duration.
Light lighting duration: Refer to the chart graph
2. INSPECT PRE±HEATING
(a) Turn the ignition switch ON, measure how long it takes to the battery voltage is applied to the glow plugs.
SST 09082±00030, 09083±00150
Pre±Heating time:
Engine coolant temperaturePre±Heating time
40
C or more1 sec
40
C or lessRefer to the chart graph
(15 sec at the longest)
(b) Turn the ignition switch STA, check that the battery volt- age applied to the glow plugs.
SST 09082±00030, 09083±00150
(c) While cranking the engine, measure how long it takes to
the battery voltage is applied to the glow plugs.
SST 09082±00030, 09083±00150
Pre±Heating time:
Engine coolant temperaturePre±Heating time
40
C or more1 sec
40
C or lessRefer to the chart graph
(15 sec at the longest)
3. INSPECT AFTER GLOW TIME
(a) After the engine starting, measure how long it takes to the battery voltage is applied to the terminal SREL of the
ECM.
After glow time: Refer to the chart graph
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550RQ±02
55±6
±
HEATER & AIR CONDITIONER AIR CONDITIONING SYSTEM
AVENSIS REPAIR MANUAL (RM1018E)
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
Whole functions of the A/C system does not operate.
4. ECU±B fuse
5. A/C amplifier assy
6. Wire harness or connector±
55±3 ±
Air Flow Control : No blower operation
1. Blower resistor
2. Heater relay
3. Blower w/ fan motor sub±assy
4. A/C amplifier assy
5. Wire harness or connector55±7
55±7
55±7
55±3±
Air Flow Control : No blower control
1. Blower w/fan motor sub±assy
2. Blower resistor
3. A/C amplifier assy
4. Wire harness or connector55±7
55±7
55±3
±
Air Flow Control : Insufficient air out
1. Blower w/fan motor sub±assy
2. Blower resistor
3. A/C amplifier assy
4. Wire harness or connector55±7
55±7
55±3±
Temperature Control : No cool air comes out
1. Volume of refrigerant
2. Drive belt tension
3. Refrigerant pressure
4. Cooler compressor assy
5. Pressure sensor
6. Condenser fan
7. Air mix damper servo sub±assy
8. A/C amplifier assy
9. Wire harness or connector55±24
55±46
55±2455±7
55±3 ±
55±7
55±3 ±
Temperature Control : No warm air comes out
1. Engine coolant volume
2. Cooler thermistor No.1
3. Air mix damper servo sub±assy
4. A/C amplifier assy
5. Heater radiator unit sub±assy
6. Wire harness or connector55±7
55±3
55±7
55±3±
±
Temperature Control : Output air is warmer or cooler than the set
temperature or response is slow.1. A/C amplifier assy
2. Air mix damper servo sub±assy
3. Air mix level55±3
55±7
±
Temperature Control : No temperature control
1. A/C amplifier assy
2. Air mix damper servo sub±assy
3. Air mix level55±3
55±7±
No air inlet control
1. Recirculation damper servo sub±assy
2. A/C amplifier assy
3. Wire harness or connector55±7
55±3±
No air outlet control
1. A/C amplifier assy
2. Mode damper servo sub±assy
3. Mode lever55±3
55±7±
Engine idle up does not occur, or is continuous
1. Idle up switch
2. Cooler compressor assy
3. A/C amplifier assy
4. Wire harness or connector55±7
55±7
55±3±
Brightness does not changes when rheostat volume or light con-
trol switch it turned.1. Illumination light system
2. A/C amplifier assy
3. Wire harness or connector±
55±3 ±
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550ZE±01
±
HEATER & AIR CONDITIONER ELECTRICAL TYPE POWER HEATER SYSTEM
55±13
AVENSIS REPAIR MANUAL (RM1018E)
ELECTRICAL TYPE POWER HEATER SYSTEM
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
PTC heater does not operate, when perform in these conditions:

Engine coolant temp.: 70 C (158 F) or below

Engine speed: 650 rpm or above

Temperature control selector: MAX. HOT

Ambient temperature: Below 10 C (50 F)
1. HTR1 Fuse
2. HTR2 Fuse
3. HTR1 relay
4. HTR2 relay
5. PTC heater
6. ECM
7. Wire harness±
±
±
±
55±14
±
±
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550ZE±01
±
HEATER & AIR CONDITIONER ELECTRICAL TYPE POWER HEATER SYSTEM
55±13
AVENSIS REPAIR MANUAL (RM1018E)
ELECTRICAL TYPE POWER HEATER SYSTEM
PROBLEM SYMPTOMS TABLE
Use the table below to help you find the cause of the problem. The numbers \
indicate the priority of the likely
cause of the problem. Check each part in order. If necessary, replace these parts.
SymptomSuspect AreaSee page
PTC heater does not operate, when perform in these conditions:

Engine coolant temp.: 70 C (158 F) or below

Engine speed: 650 rpm or above

Temperature control selector: MAX. HOT

Ambient temperature: Below 10 C (50 F)
1. HTR1 Fuse
2. HTR2 Fuse
3. HTR1 relay
4. HTR2 relay
5. PTC heater
6. ECM
7. Wire harness±
±
±
±
55±14
±
±
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I30899
Fuel Sender Gauge:
71±4
±
INSTRUMENT PANEL/METER COMBINATION METER
AVENSIS REPAIR MANUAL (RM1018E)
3. INSPECT TACHOMETER
(a) Check the operation (1) Connect a tune±up test tachometer, and start the engine.
NOTICE:

Reversing the connection of the tachometer will damage the transistors and the insides of the
diodes .

When removing or installing the tachometer, be careful not to drop or subject it to heavy
shocks.
(2) Compare the result of the test with standard indication.
DC 13.5 V, 25 C at (77 F)
Standard indication (r/min)Acceptable range (r/min)
Data in ( ) are for reference
700630 ± 770
1,000(900 ± 1100)
2,000(1850 ± 2150)
3,0002800 ± 3200
4,000(3800 ± 4200)
5,0004800 ± 5200
6,000(5750 ± 6250)
7,0006700 ± 7300
4. INSPECT FUEL RECEIVER GAUGE
(a) Inspect the circuit. (1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, then check the posi-tion of the receiver gauge needle.
Needle position: EMPTY
(3) Connect the terminal 2 and 3 on the wire harness side connector of fuel sender gauge.
(4) Turn the ignition switch to ON, then check the posi- tion of the receiver gauge needle.
Needle position: FULL
5. INSPECT FUEL LEVEL WARNING
(a) Inspect the circuit. (1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, check the fuel level needle indicates EMPTY \
and fuel level warn-ing light comes on.
6. INSPECT ENGINE COOLANT TEMPERATURE RECEIVER GAUGE WARNING LIGHT
(a) Inspect the circuit. (1) Disconnect the connector from the sender gauge.
(2) Turn the ignition switch to ON, check the position of the water temperature \
receiver gaugeneedle.
Needle position: COOL
(3) Ground the terminal 2 on the wire harness side, then check the position of the\
water temperature receiver gauge needle.
Needle position: HOT
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