Problem Symptoms Table
PROBLEM SYMPTOMS REFERENCE
| Symptom | Suspected Area | See |
|---|---|---|
| All functions of A/C system do not operate | IG power source circuit | IG POWER SOURCE CIRCUIT |
| Back-up power source circuit | BACK-UP POWER SOURCE CIRCUIT | |
| A/C amplifier | - | |
| Airflow Control: No blower operation | IG power source circuit | IG POWER SOURCE CIRCUIT |
| Back-up power source circuit | BACK-UP POWER SOURCE CIRCUIT | |
| A/C amplifier | - | |
| Airflow Control: No blower control | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| Room temperature sensor circuit | DTC B1411/11 ROOM TEMPERATURE SENSOR CIRCUIT | |
| Ambient temperature sensor circuit | DTC B1412/12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Driver side solar sensor circuit | DTC B1424/24 SOLAR SENSOR CIRCUIT (DRIVER SIDE) | |
| Passenger side solar sensor circuit | DTC B1421/21 SOLAR SENSOR CIRCUIT (PASSENGER SIDE) | |
| A/C amplifier | - | |
| Airflow Control: Insufficient airflow | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| A/C amplifier | - | |
| Temperature Control: No cool air comes out | Blower motor circuit | BLOWER MOTOR CIRCUIT |
| Pressure switch circuit | DTC B1423/23 PRESSURE SENSOR CIRCUIT | |
| Driver side air mix damper control servo motor circuit | DTC B1446/46 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (DRIVER SIDE) | |
| Passenger side air mix damper control servo motor circuit | DTC B1441/41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) | |
| Room temperature sensor circuit | DTC B1411/11 ROOM TEMPERATURE SENSOR CIRCUIT | |
| Ambient temperature sensor circuit | DTC B1412/12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Evaporator temperature sensor circuit | DTC B1413/13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Compressor solenoid circuit | DTC B1451/51 COMPRESSOR SOLENOID CIRCUIT | |
| Air conditioning compressor magnetic clutch circuit | AIR CONDITIONING COMPRESSOR MAGNETIC CLUTCH CIRCUIT | |
| ECM | - | |
| IG power source circuit | IG POWER SOURCE CIRCUIT | |
| A/C amplifier | - | |
| Temperature Control: No warm air comes out | Driver side air mix damper control servo motor circuit | DTC B1446/46 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (DRIVER SIDE) |
| Passenger side air mix damper control servo motor circuit | DTC B1441/41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) | |
| Room temperature sensor circuit | DTC B1411/11 ROOM TEMPERATURE SENSOR CIRCUIT | |
| Ambient temperature sensor circuit | DTC B1412/12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Evaporator temperature sensor circuit | DTC B1413/13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Compressor solenoid circuit | DTC B1451/51 COMPRESSOR SOLENOID CIRCUIT | |
| Pressure switch circuit | DTC B1423/23 PRESSURE SENSOR CIRCUIT | |
| IG power source circuit | IG POWER SOURCE CIRCUIT | |
| PTC heater circuit | PTC HEATER CIRCUIT | |
| A/C amplifier | - | |
| Temperature Control: Output air is warmer or cooler than the set temperature or response is slow | Driver side air mix damper control servo motor circuit | DTC B1446/46 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (DRIVER SIDE) |
| Passenger side air mix damper control servo motor circuit | DTC B1441/41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) | |
| Cool air bypass damper control servo motor circuit | DTC B1445/45 FRONT PASSENGER SEAT SIDE COOL AIR BYPASS DAMPER CONTROL SERVO MOTOR CIRCUIT | |
| Room temperature sensor circuit | DTC B1411/11 ROOM TEMPERATURE SENSOR CIRCUIT | |
| Ambient temperature sensor circuit | DTC B1412/12 AMBIENT TEMPERATURE SENSOR CIRCUIT | |
| Evaporator temperature sensor circuit | DTC B1413/13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Driver side solar sensor circuit | DTC B1424/24 SOLAR SENSOR CIRCUIT (DRIVER SIDE) | |
| Passenger side solar sensor circuit | DTC B1421/21 SOLAR SENSOR CIRCUIT (PASSENGER SIDE) | |
| A/C amplifier | - | |
| Temperature Control: No temperature control (only Max. cool or Max. warm) | Driver side air mix damper control servo motor circuit | DTC B1446/46 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (DRIVER SIDE) |
| Passenger side air mix damper control servo motor circuit | DTC B1441/41 AIR MIX DAMPER CONTROL SERVO MOTOR CIRCUIT (PASSENGER SIDE) | |
| Room temperature sensor circuit | DTC B1411/11 ROOM TEMPERATURE SENSOR CIRCUIT | |
| Cool air bypass damper control servo motor circuit | DTC B1445/45 FRONT PASSENGER SEAT SIDE COOL AIR BYPASS DAMPER CONTROL SERVO MOTOR CIRCUIT | |
| Evaporator temperature sensor circuit | DTC B1413/13 EVAPORATOR TEMPERATURE SENSOR CIRCUIT | |
| Driver side solar sensor circuit | DTC B1424/24 SOLAR SENSOR CIRCUIT (DRIVER SIDE) | |
| Passenger side solar sensor circuit | DTC B1421/21 SOLAR SENSOR CIRCUIT (PASSENGER SIDE) | |
| A/C amplifier | - | |
| No air inlet control | Air inlet damper control servo motor circuit | DTC B1442/42 AIR INLET DAMPER CONTROL SERVO MOTOR CIRCUIT |
| A/C amplifier | - | |
| No airflow mode control | Air outlet damper control servo motor circuit | DTC B1443/43 AIR OUTLET DAMPER CONTROL SERVO MOTOR CIRCUIT |
| Back-up power source circuit | BACK-UP POWER SOURCE CIRCUIT | |
| A/C amplifier | - | |
| Blinking of A/C indicator | Compressor solenoid circuit | DTC B1451/51 COMPRESSOR SOLENOID CIRCUIT |
| A/C amplifier | - | |
| Diagnostic trouble codes are not recorded. Set mode is cleared when engine switch turned off. | Back-up power source circuit | BACK-UP POWER SOURCE CIRCUIT |
| A/C amplifier | - | |
| Pollen reduction mode does not operate (A/C system is operating normally) | A/C amplifier | - |
| Multi-display | - |