Air Conditioning System Troubleshooting - Toyota Celica 2000 Repair Manual

AC-14
TROUBLESHOOTING
PROBLEM SYMPTOMS TAB L E
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 lf necessary replace these parts
Symptom
No blower operation
No blower control
No air temp€tature
No compressor operation
No cool air comes out
Insufficient cooling
No engine kJie--up when A/C swrtch ON
No aor inlet control
AIR CONDITIONING
TROUBLESHOOTING
HTR Fuse
Heater rncml relay
2
3. Blower motor
4.
Brower resistor
Blower speM control switch
5.
6. W�re harness
1. Blower motor
2. Blower resistor
Blower Sj){Jed control switch
3
4. Wire hamess
EllQtne coolant volume
2. Heilter control assembly
L
Refrigerant volume
2. AC Fuse
'
3. Magr�etic clutch
Compressor lock sensor
5_ Compressor
6. Pressure switch
8.
Blower spocd control switch
9. Heater control assembly
10. Thermistor
1 1 . Wrre hamess
L
Refrigerant vo:ume
2. llelrigerant pressure
3. Drive belt
' · Magnetic cl�tcll
8.
5. Compressor lock sensor
6. Pressure switch
7.
fhermistor
'
Heater control assembty
Wrre harness
I
Refrigerant volume
Drive belt
'
Magnetic clutch
3.
Compressor
5. Condenser
Expansion Valve
6
7 Evap01ator
8. Refrigerant lines
9 Pressure switch
o_
1 NC amplifier
1 1 . Heatm control assembty
1. lleater control assembly
2. Engine (and
4. Wire
3. Idle control system
harness
2.
Healer conlml i!SSBmbly
V'-lire hamess
Suspect Area
EGT) E G U
See page
AC-54
AC-48
AG-49
-
AC-68
AC--48
AC---49
AC--68
-
AC--65
AG--3
..
AG-- 3 5
AC-35
AC--35
AC-51
AC-54
AC--68
AC---6 5
AG-- 5 0
-
AC'r-3
AG---3
AG-16
AC rSO
AC-35
AC-35
AG-- 5 1
AG--- --6 5
-
AG-3
AG--16
-JS
AC--35
A
C
AG-43
AC-24
AC-28
AC-21
AG-51
AC--68
AC----.(; 5
-
AC---65
..
-
AG---6 5
-