Problem Symptoms Table
WARNING: This page is about a different car, the 2008 Scion xB. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
Use the table below to help determine the causes of the problem symptom. The potential cases of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
AIR CONDITIONING SYSTEM
AIR CONDITIONING SYSTEM
| Symptom | Suspected Area | See |
|---|---|---|
| All functions of the A/C system do not operate. | IG power source circuit | IG POWER SOURCE CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| Air Flow Control: No blower operation. | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| Air Flow Control: No blower control. | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| Air Flow Control: Insufficient airflow. | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| Temperature Control: No cool air comes out. | Refrigerant volume | - |
| Refrigerant pressure | REFRIGERANT | |
| Compressor solenoid circuit | DTC B1451 COMPRESSOR SOLENOID CIRCUIT | |
| Evaporator temperature sensor circuit | DTC B1413 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Ambient temperature sensor circuit | DTC B1412 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Heater control switch circuit | HEATER CONTROL SWITCH CIRCUIT | |
| Air mix damper control cable | - | |
| Expansion valve | AIR CONDITIONING UNIT | |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| Temperature Control: No warm air comes out. | Evaporator temperature sensor circuit | DTC B1413 EVAPORATOR TEMPERATURE SENSOR CIRCUIT |
| Ambient temperature sensor circuit | DTC B1412 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Engine coolant temperature sensor circuit | DTC P0115 ENGINE COOLANT TEMPERATURE CIRCUIT MALFUNCTION; DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT; DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| Air mix damper control cable | - | |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| ECM | REMOVAL | |
| Temperature Control: Output air is warmer or cooler than the set temperature or response is slow. | Refrigerant volume | - |
| Refrigerant pressure | REFRIGERANT | |
| Ambient temperature sensor circuit | DTC B1412 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Engine coolant temperature sensor circuit | DTC P0115 ENGINE COOLANT TEMPERATURE CIRCUIT MALFUNCTION; DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT; DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| Air mix damper control cable | - | |
| Radiator unit sub-assembly | - | |
| Expansion valve | AIR CONDITIONING UNIT | |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| ECM | REMOVAL | |
| Temperature Control: No temperature control (only Max. cool or Max. hot) | Ambient temperature sensor circuit | DTC B1412 AMBIENT TEMPERATURE SENSOR CIRCUIT |
| Evaporator temperature sensor circuit | DTC B1413 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Heater control switch circuit | HEATER CONTROL SWITCH CIRCUIT | |
| Engine coolant temperature sensor circuit | DTC P0115 ENGINE COOLANT TEMPERATURE CIRCUIT MALFUNCTION; DTC P0117 ENGINE COOLANT TEMPERATURE CIRCUIT LOW INPUT; DTC P0118 ENGINE COOLANT TEMPERATURE CIRCUIT HIGH INPUT | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| Air mix damper control cable | - | |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| ECM | REMOVAL | |
| No air inlet control. | Recirculation damper servo motor circuit | RECIRCULATION DAMPER SERVO MOTOR CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| No air flow mode control. | No. 2 heater control cable | - |
| Engine idle up does not occur, or is continuous | Compressor solenoid circuit | DTC B1451 COMPRESSOR SOLENOID CIRCUIT |
| A/C amplifier | AIR CONDITIONING AMPLIFIER | |
| ECM | REMOVAL | |
| CAN communication system | CAN COMMUNICATION SYSTEM | |
| A/C indicator blinking. | Compressor solenoid circuit | DTC B1451 COMPRESSOR SOLENOID CIRCUIT |