Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne ac troumanu pst

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AC-14
AIR CONDITIONING - TROUBLESHOOTING (Manual A/C)

TROUBLESHOOTING (Manual A/C)
AC22H-03

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.
Symptom Suspect Area See page
2. HTR Fuse -
3. Heater main relay AC-80
4. Blower motor AC-66
No blower operation
5. Blower resistor AC-67
6. Blower speed control switch AC-95
7. Wire harness -

1. Engine coolant volume -
No air temperature control 2. Heater control assembly AC-89
3. Water valve AC-63
1. Refrigerant volume AC-3
2. A.C Fuse -
3. Magnetic clutch AC-49
4. Compressor AC-49
No compressor operation 5. Pressure switch AC-77
6. Heater main relay AC-80
7. Blower speed control switch AC-95
8. Thermistor AC-24
9. Wire harness -
1. Refrigerant volume AC-3
2. Pressure switch AC-77
Compressor operates intermittently
3. Thermistor AC-24
4. Wire harness -

1. Refrigerant volume AC-3
2. Refrigerant pressure AC-3
3. Drive belt AC-16
4. Magnetic clutch AC-49
No cool air comes out 5. Compressor AC-49
6. Pressure switch AC-77
7. Thermistor AC-24
8. Heater control assembly AC-89
9. Wire harness -
1. Refrigerant volume AC-3
2. Drive belt AC-16
3. Magnetic clutch AC-49
4. Compressor AC-49
5. Condenser AC-60
Cool air comes out only at high engine rpm
6. Receiver AC-57
7. Expansion valve AC-24
8. Evaporator AC-29
9. Thermistor AC-24
10.Wire harness -

2002 4RUNNER (RM887U)

Author : Date : 1783
AC-15
AIR CONDITIONING - TROUBLESHOOTING (Manual A/C)

1. Refrigerant volume AC-3
2. Drive belt AC-16
3. Magnetic clutch AC-49
4. Compressor AC-49
5. Condenser AC-60
Insufficient cooling 6. Receiver AC-57
7. Expansion valve AC-24
8. Evaporator AC-29
9. Refrigerant lines AC-21
10.Pressure switch AC-77
11.Heater control assembly AC-89

1. Idle control system DI-105
No engine idle-up when A/C switch ON
2. Wire harness -
1. Engine coolant volume -
2. Heater control assembly AC-89
No warm air comes out
3. Water valve AC-63
4. Heater radiator AC-35

Rear heater:
1. RR HTR Fuse -
2. Rear heater relay AC-81
3. Rear blower switch AC-103
No blower operation
4. Rear blower resistor AC-70
5. Rear blower motor AC-41
6. Wire harness -

1. Engine coolant volume -
No air temperature control
2. Rear heater control assembly AC-102

1. Engine coolant volume -
No warm air comes out 2. Rear heater control assembly AC-100
3. Rear heater radiator AC-41

2002 4RUNNER (RM887U)

Author : Date : 1784

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