| A/C system does not operate at all. |
Wire harness and connector (grounding and power supply system) |
- |
| Fuse [MPX-B, HEATER, HEATER] |
PARTS LOCATION |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| CAN communication system |
DTC U0073 CAN COMMUNICATION ERROR; DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"; DTC U0101 LOST COMMUNICATION WITH TCM; DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE; DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE; DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"; DTC U0402 INVALID DATA RECEIVED FROM TCM; DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE; DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE; DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE |
| Switch operation is not accepted. |
Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Blower motor (with fan) does not rotate. |
Blower motor circuit |
BLOWER MOTOR CIRCUIT |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Blower register (power transistor) |
- |
| Blower motor (with fan) speed does not change. |
Blower motor circuit |
BLOWER MOTOR CIRCUIT |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Blower register (power transistor) |
- |
| Difficult cooling |
Check of refrigerant level |
HEATER & AIR CONDITIONER SYSTEM (FOR AUTOMATIC AIR CONDITIONING SYSTEM) |
| Check of refrigerant pressure |
FUNCTION INSPECTION |
| Cooler expansion valve |
COOLER EXPANSION VALVE |
| Compressor assembly (with magnet clutch) |
UNIT INSPECTION |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Cold air not emitted |
Check of refrigerant level |
HEATER & AIR CONDITIONER SYSTEM (FOR AUTOMATIC AIR CONDITIONING SYSTEM) |
| Check of refrigerant pressure |
FUNCTION INSPECTION |
| Air conditioner pressure switch |
AIR CONDITIONER PRESSURE SWITCH |
| Compressor assembly (with magnet clutch) |
UNIT INSPECTION |
| Air mix damper servo circuit (driver's seat) |
DTC B1440/41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (DRIVER'S SEAT); DTC B1442/-41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (DRIVER'S SEAT); DTC B1446/E41 AIR MIX DOOR ACTUATOR LOCK (DRIVER'S SEAT) |
| Air mix damper servo circuit (passenger's seat) |
DTC B1436/45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT); DTC B1437/-45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT); DTC B1441/E45 AIR MIX DOOR ACTUATOR LOCK (PASSENGER'S SEAT) |
| Cooler thermistor (in-vehicle sensor) |
DTC B1430/21 ROOM TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1431/-21 ROOM TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Automatic light control sensor |
DTC B14A1/25 SUNLOAD SENSOR CIRCUIT OPEN; DTC B14A2/-25 SUNLOAD SENSOR CIRCUIT SHORT |
| Thermistor assembly |
DTC B1432/22 AMBIENT TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1433/-22 AMBIENT TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Cooler thermistor NO. 1 (after-evaporator sensor) |
DTC B1434/23 EVAPORATOR SENSOR CIRCUIT WIRE BREAK; DTC B1435/-23 EVAPORATOR SENSOR CIRCUIT SHORT-CIRCUIT |
| Cooler expansion valve |
COOLER EXPANSION VALVE |
| CAN communication system |
DTC U0073 CAN COMMUNICATION ERROR; DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"; DTC U0101 LOST COMMUNICATION WITH TCM; DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE; DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE; DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"; DTC U0402 INVALID DATA RECEIVED FROM TCM; DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE; DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE; DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Heater relay (clutch relay) |
RELAY |
| Aspirator hose |
AIR CONDITIONER RADIATOR assembly |
| Warm air not emitted |
Air mix damper servo circuit (driver's seat) |
DTC B1440/41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (DRIVER'S SEAT); DTC B1442/-41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (DRIVER'S SEAT); DTC B1446/E41 AIR MIX DOOR ACTUATOR LOCK (DRIVER'S SEAT) |
| Air mix damper servo circuit (passenger's seat) |
DTC B1436/45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT); DTC B1437/-45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT); DTC B1441/E45 AIR MIX DOOR ACTUATOR LOCK (PASSENGER'S SEAT) |
| Cooler thermistor (in-vehicle sensor) |
DTC B1430/21 ROOM TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1431/-21 ROOM TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Automatic light control sensor |
DTC B14A1/25 SUNLOAD SENSOR CIRCUIT OPEN; DTC B14A2/-25 SUNLOAD SENSOR CIRCUIT SHORT |
| Thermistor assembly |
DTC B1432/22 AMBIENT TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1433/-22 AMBIENT TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| CAN communication system |
DTC U0073 CAN COMMUNICATION ERROR; DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"; DTC U0101 LOST COMMUNICATION WITH TCM; DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE; DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE; DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"; DTC U0402 INVALID DATA RECEIVED FROM TCM; DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE; DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE; DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Aspirator hose |
AIR CONDITIONER RADIATOR assembly |
| Warmer or colder than setting temperature |
Check of refrigerant level |
HEATER & AIR CONDITIONER SYSTEM (FOR AUTOMATIC AIR CONDITIONING SYSTEM) |
| Check of refrigerant pressure |
FUNCTION INSPECTION |
| Air mix damper servo circuit (driver's seat) |
DTC B1440/41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (DRIVER'S SEAT); DTC B1442/-41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (DRIVER'S SEAT); DTC B1446/E41 AIR MIX DOOR ACTUATOR LOCK (DRIVER'S SEAT) |
| Air mix damper servo circuit (passenger's seat) |
DTC B1436/45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT); DTC B1437/-45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT); DTC B1441/E45 AIR MIX DOOR ACTUATOR LOCK (PASSENGER'S SEAT) |
| Cooler thermistor (in-vehicle sensor) |
DTC B1430/21 ROOM TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1431/-21 ROOM TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Air inlet at the front of the cooler thermistor (in-vehicle sensor) (clogged dust or foreign matter) |
- |
| Automatic light control sensor |
DTC B14A1/25 SUNLOAD SENSOR CIRCUIT OPEN; DTC B14A2/-25 SUNLOAD SENSOR CIRCUIT SHORT |
| Thermistor assembly |
DTC B1432/22 AMBIENT TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1433/-22 AMBIENT TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Cooler expansion valve |
COOLER EXPANSION VALVE |
| Radiator heater unit |
- |
| Wire harness and connector |
- |
| CAN communication system |
DTC U0073 CAN COMMUNICATION ERROR; DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"; DTC U0101 LOST COMMUNICATION WITH TCM; DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE; DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE; DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"; DTC U0402 INVALID DATA RECEIVED FROM TCM; DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE; DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE; DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Heater relay (clutch relay) |
RELAY |
| Aspirator hose |
AIR CONDITIONER RADIATOR assembly |
| Temperature control is disabled (temperature does not change). |
Air mix damper servo circuit (driver's seat) |
DTC B1440/41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (DRIVER'S SEAT); DTC B1442/-41 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (DRIVER'S SEAT); DTC B1446/E41 AIR MIX DOOR ACTUATOR LOCK (DRIVER'S SEAT) |
| Air mix damper servo circuit (passenger's seat) |
DTC B1436/45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT); DTC B1437/-45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT); DTC B1441/E45 AIR MIX DOOR ACTUATOR LOCK (PASSENGER'S SEAT) |
| Wire harness and connector |
- |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Aspirator hose |
AIR CONDITIONER RADIATOR assembly |
| Temperature control is disabled (MAX HOT or MAX COLD occurs). |
Cooler thermistor (in-vehicle sensor) |
DTC B1430/21 ROOM TEMPERATURE SENSOR CIRCUIT WIRE BREAK; DTC B1431/-21 ROOM TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT |
| Thermistor assembly |
DTC B1436/45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT); DTC B1437/-45 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT); DTC B1441/E45 AIR MIX DOOR ACTUATOR LOCK (PASSENGER'S SEAT) |
| Wire harness and connector |
- |
| CAN communication system |
DTC U0073 CAN COMMUNICATION ERROR; DTC U0100 LOST COMMUNICATION WITH ECM/PCM "A"; DTC U0101 LOST COMMUNICATION WITH TCM; DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE; DTC U0140 LOST COMMUNICATION WITH BODY CONTROL MODULE; DTC U0155 LOST COMMUNICATION WITH INSTRUMENT PANEL CLUSTER (IPC) CONTROL MODULE; DTC U0401 INVALID DATA RECEIVED FROM ECM/PCM "A"; DTC U0402 INVALID DATA RECEIVED FROM TCM; DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE; DTC U0422 INVALID DATA RECEIVED FROM BODY CONTROL MODULE; DTC U0423 INVALID DATA RECEIVED FROM INSTRUMENT PANEL CLUSTER CONTROL MODULE |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Aspirator hose |
- |
| Inlet opening is not changed. |
Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Damper servo (FRESH/RECIRC) |
AIR CONDITIONER RADIATOR assembly |
| Indicator does not illuminate. |
Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Diagnostic code is not written (At IG ON, the set mode is erased). |
Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Outlet opening is not changed. |
Damper servo (mode change) |
AIR CONDITIONER RADIATOR assembly |
| Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |
| Illumination does not turn on, or does not dim. |
Air conditioner control assembly |
ECM TERMINAL ARRANGEMENT |
| Wire harness and connector |
- |