Problem Symptoms Table
Front A/C
FRONT A/C SYMPTOMS REFERENCE
| Symptom | Suspected Area | See |
|---|---|---|
| Entire A/C system does not operate | 1. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY |
| 2. Wire harness or connector | - | |
| Air Flow Control: No blower operate | 1. Cooling unit motor sub-assembly w/fan | BLOWER MOTOR |
| 2. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 3. Wire harness or connector | - | |
| Air Flow Control: No blower control | 1. Cooling unit motor sub-assembly w/fan | BLOWER MOTOR |
| 2. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 3. Wire harness or connector | - | |
| Air Flow Control: Insufficient air output | 1. Cooling unit motor sub-assembly w/fan | BLOWER MOTOR |
| 2. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 3. Wire harness or connector | - | |
| Temperature Control: No cool air comes out | 1. Volume of refrigerant | REFRIGERANT LINE |
| 2. Refrigerant pressure | REFRIGERANT | |
| 3. Compressor and magnetic clutch assembly | COMPRESSOR AND MAGNETIC CLUTCH (for 1ZZ-FE) | |
| 4. A/C pressure switch | PRESSURE SWITCH | |
| 5. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 6. Damper control cable | - | |
| 7. Wire harness or connector | - | |
| Temperature Control: No warm air comes out | 1. Engine coolant volume | COOLING SYSTEM |
| 2. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 3. Heater radiator unit sub-assembly | AIR CONDITIONING UNIT | |
| 4. Damper control cable | - | |
| 5. Wire harness or connector | - | |
| Temperature Control: Output air is warmer or cooler than set temperature or response is slow | 1. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY |
| 2. Damper control cable | - | |
| 3. Wire harness or connector | - | |
| Temperature Control: No temperature control | 1. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY |
| 2. Damper control cable | - | |
| 3. Wire harness or connector | - | |
| No air inlet control | 1. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY |
| 2. Wire harness or connector | - | |
| No air outlet control | 1. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY |
| 2. Wire harness or connector | - | |
| Engine idle up does not occur, or is continuous | 1. Compressor and magnetic clutch assembly | COMPRESSOR AND MAGNETIC CLUTCH (for 1ZZ-FE) |
| 2. Air conditioning control assembly | AIR CONDITIONING CONTROL ASSEMBLY | |
| 3. Wire harness or connector | - | |
| Brightness does not change when rheostat volume or light control switch is turned | 1. Wire harness or connector | - |