Problem Symptoms Table
WARNING: This page is about a different car, the 2002 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
Problem Symptoms
| Symptom/Suspect Area | See | |||
|---|---|---|---|---|
| Whole Function Of The A/C System Does Not Operate | ||||
| IG Power Source Circuit | IG POWER SOURCE CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Air Flow Control: No Blower Operation | ||||
| Heater Main Relay Circuit | HEATER MAIN RELAY CIRCUIT | |||
| Blower Motor Circuit | BLOWER MOTOR CIRCUIT | |||
| Engine Coolant Temperature Sensor Circuit | DTC 14 ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT | |||
| IG Power Source Circuit | IG POWER SOURCE CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Air Flow Control: No Blower Control | ||||
| Blower Motor Circuit | BLOWER MOTOR CIRCUIT | |||
| IG Power Source Circuit | IG POWER SOURCE CIRCUIT | |||
| Heater Main Relay Circuit | HEATER MAIN RELAY CIRCUIT | |||
| Air Flow Control: Insufficient Air Out | ||||
| Blower Motor Circuit | BLOWER MOTOR CIRCUIT | |||
| Temperature Control: No Cool Air Comes Out | ||||
| Volume Of Refrigerant | ON-VEHICLE INSPECTION | |||
| Drive Belt Tension | DRIVE BELT | |||
| Inspect Refrigeration System With Manifold Gauge Set | MANIFOLD GAUGE SET | |||
| Compressor Circuit | COMPRESSOR CIRCUIT | |||
| Pressure Switch Circuit | DTC 23 PRESSURE SWITCH CIRCUIT | |||
| Air Mix Control Servomotor Circuit | DTC 41 AIR MIX CONTROL SERVOMOTOR CIRCUIT | |||
| Air Mix Damper Position Sensor Circuit | DTC 31, 41 AIR MIX DAMPER POSITION SENSOR CIRCUIT | |||
| Room Temp. Sensor Circuit | DTC 11 ROOM TEMPERATURE SENSOR CIRCUIT | |||
| Ambient Temp. Sensor Circuit | DTC 12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Temperature Control: No Warm Air Comes Out | ||||
| Air Mix Control Servomotor Circuit | DTC 41 AIR MIX CONTROL SERVOMOTOR CIRCUIT | |||
| Air Mix Damper Position Sensor Circuit | DTC 31, 41 AIR MIX DAMPER POSITION SENSOR CIRCUIT | |||
| Ambient Temp. Sensor Circuit | DTC 12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |||
| Room Temp. Sensor Circuit | DTC 11 ROOM TEMPERATURE SENSOR CIRCUIT | |||
| Evaporator Temp. Sensor Circuit | DTC 13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Heater Radiator (In Heater Unit) | HEATER UNIT | |||
| Temperature Control: Output Air Is Warmer Or Cooler Than The Set Temperature Or Response Is Slow. | ||||
| Volume Of Refrigerant | ON-VEHICLE INSPECTION | |||
| Drive Belt Tension | DRIVE BELT | |||
| Inspect Refrigeration System with Manifold Gauge Set | ON-VEHICLE INSPECTION | |||
| Ambient Temp. Sensor Circuit | DTC 12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |||
| Evaporator Temp. Sensor Circuit | DTC 13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |||
| Solar Sensor Circuit | DTC 21 SOLAR SENSOR CIRCUIT | |||
| Air Mix Damper Position Sensor Circuit | DTC 31, 41 AIR MIX DAMPER POSITION SENSOR CIRCUIT | |||
| Engine Coolant Temp. Sensor Circuit | DTC 14 ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT | |||
| Air Mix Control Servomotor Circuit | DTC 41 AIR MIX CONTROL SERVOMOTOR CIRCUIT | |||
| Compressor | COMPRESSOR AND MAGNETIC CLUTCH | |||
| Condenser | CONDENSER | |||
| Receiver | RECEIVER | |||
| Evaporator | INSPECTION | |||
| Heater Radiator (In Heater Unit) | HEATER UNIT | |||
| Expansion Valve | ON-VEHICLE INSPECTION | |||
| A/C Control Assembly | (1) | |||
| Temperature Control: No Temperature Control ( Only Max. Cool or Max. Warm) | ||||
| Air Mix Control Servomotor Circuit | DTC 41 AIR MIX CONTROL SERVOMOTOR CIRCUIT | |||
| Air Mix Damper Position Sensor Circuit | DTC 31, 41 AIR MIX DAMPER POSITION SENSOR CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| No Air Outlet Control | ||||
| Air Outlet Control Servomotor Circuit | AIR OUTLET CONTROL SERVOMOTOR CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Engine Idle up Does Not Occur, Or Is Continuous | ||||
| Compressor Circuit | COMPRESSOR CIRCUIT | |||
| A/C Control Assembly | (1) | |||
| Set Temperature Value Displayed Does Not Match Up With Operation Of Temperature | ||||
| A/C Control Assembly | (1) | |||
| Brightness Does Not Change When Rheostat Volume Or Light Control Switch Is Turned. | ||||
| Illumination Light System | INTERIOR/ILLUMINATION LIGHTS | |||
| A/C Control Assembly | (1) | |||
| Unable To Access The Diagnosis Model | ||||
| A/C Control Assembly | (1) | |||
| DTC Not Recorded. Set Mode Is Cleared When IG Switch Is Turned Off. | ||||
| Back-up Power Source Circuit | BACK UP POWER SOURCE CIRCUIT | |||
| A/C Control Assembly | (1) | |||
|
||||