HVAC System DTCS
HVAC SYSTEM DIAGNOSTIC TROUBLE CODES (DTC) LIST
| DTC | Item | Description |
|---|---|---|
| B1430 | In-Vehicle Sensor Open | <Ref. to DTC B1430 ROOM TEMPERATURE SENSOR CIRCUIT WIRE BREAK , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1431 | Room Temperature Sensor Circuit Short-Circuit | <Ref. to DTC B1431 ROOM TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1432 | Outside Air Sensor Circuit Wire Break (Air-Conditioning) | <Ref. to DTC B1432 OUTSIDE AIR SENSOR CIRCUIT WIRE BREAK (AIR-CONDITIONING) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1433 | Outside Air Sensor Circuit Short-Circuit (Air-Conditioning) | <Ref. to DTC B1433 OUTSIDE AIR SENSOR CIRCUIT SHORT-CIRCUIT (AIR-CONDITIONING) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1434 | Ambient Temperature Sensor Circuit Wire Break | <Ref. to DTC B1434 AMBIENT TEMPERATURE SENSOR CIRCUIT WIRE BREAK , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1435 | Evaporator Sensor Circuit Short-Circuit | <Ref. to DTC B1435 EVAPORATOR SENSOR CIRCUIT SHORT-CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1436 | Air Mix Door Actuator Potentiometer Circuit Wire Break (Passenger's Seat) | <Ref. to DTC B1436 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (PASSENGER'S SEAT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1437 | Air Mix Door Actuator Potentiometer Circuit Short-Circuit (Passenger's Seat) | <Ref. to DTC B1437 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT-CIRCUIT (PASSENGER'S SEAT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1438 | Mode Door Actuator Potentiometer Circuit Open | <Ref. to DTC B1438 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1439 | Mode Door Actuator Potentiometer Circuit Short | <Ref. to DTC B1439 MODE DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1440 | Air Mix Door Actuator Potentiometer Circuit Wire Break (Driver's Seat) | <Ref. to DTC B1440 AIR MIX DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK (DRIVER'S SEAT) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1441 | Air Mix Damper Control Servomotor Circuit (Passenger Side) | <Ref. to DTC B1441 AIR MIX DAMPER CONTROL SERVOMOTOR CIRCUIT (PASSENGER SIDE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1442 | Air Inlet Damper Control Servomotor | <Ref. to DTC B1442 AIR INLET DAMPER CONTROL SERVOMOTOR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1443 | Air Outlet Damper Control Servomotor Circuit | <Ref. to DTC B1443 AIR OUTLET DAMPER CONTROL SERVOMOTOR CIRCUIT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1446 | Air Mix Damper Control Servomotor Circuit (Driver Side) | <Ref. to DTC B1446 AIR MIX DAMPER CONTROL SERVOMOTOR CIRCUIT (DRIVER SIDE) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1448 | Rear Vent Door Actuator Potentiometer Circuit Open | <Ref. to DTC B1448 REAR VENT DOOR ACTUATOR POTENTIOMETER CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B1449 | Rear Vent Door Actuator Potentiometer Circuit Short | <Ref. to DTC B1449 REAR VENT DOOR ACTUATOR POTENTIOMETER CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B144A | Rear Vent Door Actuator Potentiometer Lock | <Ref. to DTC B144A REAR VENT DOOR ACTUATOR POTENTIOMETER LOCK , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A1 | Sunload Sensor Circuit Open | <Ref. to
DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN
, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
NOTE:
When inspection is performed indoors or in the shade, sunload sensor can be diagnosed as wire breaking due to the short amount of light. Inspect the sunload sensor under the direct sunlight.
|
| B14A2 | Sunload Sensor Circuit Short | <Ref. to
DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT
, Diagnostic Procedure with Diagnostic Trouble Code (DTC).>
NOTE:
When inspection is performed indoors or in the shade, sunload sensor can be diagnosed as wire breaking due to the short amount of light. Inspect the sunload sensor under the direct sunlight.
|
| B14A3 | Refrigerant Pressure Sensor Circuit Open | <Ref. to DTC B14A3 REFRIGERANT PRESSURE SENSOR CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A4 | Refrigerant Pressure Sensor Circuit Short | <Ref. to DTC B14A4 REFRIGERANT PRESSURE SENSOR CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A5 | Refrigerant Flow Sensor Circuit Open | <Ref. to DTC B14A5 REFRIGERANT FLOW SENSOR CIRCUIT OPEN , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A6 | Refrigerant Flow Sensor Circuit Short | <Ref. to DTC B14A6 REFRIGERANT FLOW SENSOR CIRCUIT SHORT , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A7 | Variable Duty Solenoid Valve Circuit Failure | <Ref. to DTC B14A7 VARIABLE DUTY SOLENOID VALVE CIRCUIT FAILURE , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14A8 | Refrigerant Not Sealed Drive Error | <Ref. to DTC B14A8 REFRIGERANT NOT SEALED DRIVE ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14B1 | Seat Heater Thermistor Circuit Open (Driver's) | <Ref. to DTC B14B1 SEAT HEATER THERMISTOR CIRCUIT OPEN (DRIVER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14B2 | Seat Heater Thermistor Circuit Short (Driver's) | <Ref. to DTC B14B2 SEAT HEATER THERMISTOR CIRCUIT SHORT (DRIVER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14B3 | Seat Heater Thermistor Circuit Open (Passenger's) | <Ref. to DTC B14B3 SEAT HEATER THERMISTOR CIRCUIT OPEN (PASSENGER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| B14B4 | Seat Heater Thermistor Circuit Short (Passenger's) | <Ref. to DTC B14B4 SEAT HEATER THERMISTOR CIRCUIT SHORT (PASSENGER'S) , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0001 | CAN Communication Bus Off | <Ref. to DTC U0001 CAN COMMUNICATION BUS OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0002 | CAN Communication Error | <Ref. to DTC U0002 CAN COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0028 | Heater Control Panel Communication Error | <Ref. to DTC U0028 HEATER CONTROL PANEL COMMUNICATION ERROR , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |
| U0073 | Control Module Communication Bus Off | <Ref. to DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF , Diagnostic Procedure with Diagnostic Trouble Code (DTC).> |