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HVAC System (Heater, Ventilator And A/C) DTCS

HVAC SYSTEM DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Diagnostic codes Diagnostic items Reference
B1430/21 [Room temperature sensor circuit wire break] DTC B1430/21 Room temperature sensor circuit wire break; DTC B1431/-21 Room temperature sensor circuit short-circuit
B1431/-21 [Room temperature sensor circuit short-circuit] DTC B1430/21 Room temperature sensor circuit wire break; DTC B1431/-21 Room temperature sensor circuit short-circuit
B1432/22 [Ambient temperature sensor circuit wire break] DTC B1432/22 Ambient temperature sensor circuit wire break; DTC B1433/-22 Ambient temperature sensor circuit short-circuit
B1433/-22 [Ambient temperature sensor circuit short-circuit] DTC B1432/22 Ambient temperature sensor circuit wire break; DTC B1433/-22 Ambient temperature sensor circuit short-circuit
B1434/23 [Evaporator sensor circuit wire break] DTC B1434/23 Evaporator sensor circuit wire break; DTC B1435/-23 Evaporator sensor circuit short-circuit
B1435/-23 [Evaporator sensor circuit short-circuit] DTC B1434/23 Evaporator sensor circuit wire break; DTC B1435/-23 Evaporator sensor circuit short-circuit
B1436/45 [Air mix door actuator potentiometer circuit wire break (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)
B1437/-45 [Air mix door actuator potentiometer circuit short-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)
B1438/49 [Mode Door Actuator Potentiometer Circuit Open] DTC B1438/49 Mode Door Actuator Potentiometer Circuit Open; DTC B1439/-49 Mode Door Actuator Potentiometer Circuit Short; DTC B1443/E49 Mode Door Actuator Lock
B1439/-49 [Mode Door Actuator Potentiometer Circuit Short] DTC B1438/49 Mode Door Actuator Potentiometer Circuit Open; DTC B1439/-49 Mode Door Actuator Potentiometer Circuit Short; DTC B1443/E49 Mode Door Actuator Lock
B1440/41 [Air mix door actuator potentiometer circuit wire break (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)
B1441/E45 [Air mix door actuator lock (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)
B1442/-41 [Air mix door actuator potentiometer circuit short-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)
B1443/E49 [Mode Door Actuator Lock] DTC B1438/49 Mode Door Actuator Potentiometer Circuit Open; DTC B1439/-49 Mode Door Actuator Potentiometer Circuit Short; DTC B1443/E49 Mode Door Actuator Lock
B1446/E41 [Air mix door actuator lock (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)
B14A1/25 [Sunload Sensor Circuit Open] DTC B14A1/25 Sunload Sensor Circuit Open; DTC B14A2/-25 Sunload Sensor Circuit Short
B14A2/-25 [Sunload Sensor Circuit Short] DTC B14A1/25 Sunload Sensor Circuit Open; DTC B14A2/-25 Sunload Sensor Circuit Short
E24 [Engine Coolant Temp. Sensor Abnormal/Incorrect Communication] DTC E24 Engine Coolant Temperature Sensor Malfunction/Communication Error
U0073/E72 [CAN Communication Failure] 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
U0100 [Lost Communication With ECM/PCM "A"] 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
U0101 [Lost Communication With TCM] 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
U0122 [Lost Communication With Vehicle Dynamics Control Module] 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
U0140 [Lost Communication With Body Control Module] 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
U0155 [Lost Communication With Instrument Panel Cluster (IPC) Control Module] 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
U0401 [Invalid Data Received From ECM/PCM "A"] 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
U0402 [Invalid Data Received From TCM] 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
U0416 [Invalid Data Received From VDC] 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
U0422 [Invalid Data Received From Body Control Module] 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
U0423 [Invalid Data Received From Instrument Panel Cluster Control Module] 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