Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm ac trou pst
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AC-14
AIR CONDITIONING - TROUBLESHOOTING
TROUBLESHOOTING
AC27Y-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.
Standard:
Symptom Suspect Area See page
4. HTR Fuse -
5. Heater main relay AC-64
6. Blower motor AC-56
No blower operation
7. Blower resistor AC-58
8. Blower speed control switch AC-88
9. Wire harness -
1. Engine coolant volume -
No air temperature control
2. Heater control assembly AC-78
1. Refrigerant volume AC-3
2. A.C Fuse -
3. Magnetic clutch relay AC-66
4. Magnetic clutch AC-42
5. Compressor AC-42
No compressor operation
6. Pressure switch AC-61
7. A/C switch AC-88
8. A/C amplifier AC-75
9. Thermistor AC-60
10.Wire harness -
1. Refrigerant volume AC-3
2. Refrigerant pressure AC-3
3. Drive belt AC-16
4. Magnetic clutch AC-42
5. Compressor AC-42
No cool air comes out 6. Pressure switch AC-61
7. Thermistor AC-60
8. A/C switch AC-88
9. A/C amplifier AC-75
10.Heater control assembly AC-78
11.Wire harness -
1. Refrigerant volume AC-3
2. Drive belt AC-16
3. Magnetic clutch AC-42
4. Compressor AC-42
5. Condenser AC-49
Insufficient cooling 6. Expansion valve AC-54
7. Evaporator AC-31
8. Refrigerant lines AC-21
9. Pressure switch AC-61
10.A/C amplifier AC-75
11.Heater control assembly AC-78
1. A/C amplifier AC-75
No engine idle-up when A/C switch ON 2. Engine (and ECT) ECU -
3. Wire harness -
No air inlet control Heater control assembly AC-78
No mode control Heater control assembly AC-78
2002 ECHO (RM884U)
Author : Date : 1461
AC-15
AIR CONDITIONING - TROUBLESHOOTING
Symptom Suspect Area See page
1. ECU - IG Fuse -
2. RDI Fuse -
3. Fan No. 1 relay AC-67
4. Water temperature switch AC-90
No condenser fan operation
5. Fan motor AC-68
6. A/C amplifier AC-75
7. Engine (and ECT) ECU -
8. Wire harness -
1. Fan No. 2 relay AC-67
2. Pressure switch AC-61
No condenser fan speed change 3. Condenser fan resistor AC-74
4. A/C amplifier AC-75
5. Wire harness -
Two way flow heater:
Symptom Suspect Area See page
1. GAUGE Fuse -
2. HTR Fuse -
3. Heater main relay AC-64
No blower operation 4. Blower motor AC-56
5. Blower resistor AC-58
6. Blower speed control switch AC-88
7. Wire harness -
1. ECU - IG Fuse -
2. Air inlet servomotor AC-59
No air inlet control 3. Heater switch (Heater control assembly) AC-82
4. PTC amplifier AC-75
5. Wire harness -
1. A/C Fuse -
Air inlet door does not operate on the two way flow position, when
2. Micro switch (for MAX. WARM) AC-39
perform in these conditions:
3. Micro switch (for FOOT, FOOT/DEF.) AC-39
S Air inlet selector: FRESH
4. Heater switch (Heater control assembly) AC-82
S Blower switch: ON
5. PTC amplifier AC-75
S Temperature control selector: MAX. WARM
6. Air inlet servomotor AC-59
S Mode selector: FOOT or FOOT/DEF.
7. Wire harness -
PTC heater:
Symptom Suspect Area See page
1. A/C Fuse -
2. Micro switch (for MAX. WARM) AC-39
PTC heater does not operate, when perform in these conditions: 3. Micro switch (for FOOT, FOOT/DEF.) AC-39
S Engine coolant temp.: 60 ◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo