FixVault

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 -