Honda Civic manuals

Subaru Legacy BN/BS (2015-2019) Service Manual: List of diagnostic trouble code (dtc) list

Subaru Legacy BN/BS (2015-2019) Service Manual / Hvac system (diagnostics) / List of diagnostic trouble code (dtc) list

NOTE:

When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as having an open circuit. Always check the sunload sensor in direct sunlight.

DTC

Item

Note

B1430

IN-VEHICLE (POST EVAPORATOR) TEMPERATURE SENSOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1430 IN-VEHICLE (POST EVAPORATOR) TEMPERATURE SENSOR CIRCUIT OPEN

B1431

IN-VEHICLE (POST EVAPORATOR) TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1431 IN-VEHICLE (POST EVAPORATOR) TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT

B1432

AMBIENT TEMPERATURE SENSOR CIRCUIT OPEN (AIR-CONDITIONER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1432 AMBIENT TEMPERATURE SENSOR CIRCUIT OPEN (AIR-CONDITIONER)

B1433

AMBIENT TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT (AIR-CONDITIONER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1433 AMBIENT TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT (AIR-CONDITIONER)

B1434

EVAPORATOR TEMPERATURE SENSOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1434 EVAPORATOR TEMPERATURE SENSOR CIRCUIT OPEN

B1435

EVAPORATOR TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1435 EVAPORATOR TEMPERATURE SENSOR CIRCUIT SHORT-CIRCUIT

B1436

AIR MIX DOOR ACTUATOR CIRCUIT OPEN (PASSENGER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1436 AIR MIX DOOR ACTUATOR CIRCUIT OPEN (PASSENGER)

B1437

AIR MIX DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT (PASSENGER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1437 AIR MIX DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT (PASSENGER)

B1438

MODE DOOR ACTUATOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1438 MODE DOOR ACTUATOR CIRCUIT OPEN

B1439

MODE DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1439 MODE DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT

B1440

AIR MIX DOOR ACTUATOR CIRCUIT OPEN (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1440 AIR MIX DOOR ACTUATOR CIRCUIT OPEN (DRIVER)

B1441

AIR MIX DOOR ACTUATOR CIRCUIT STUCK (PASSENGER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1441 AIR MIX DOOR ACTUATOR CIRCUIT STUCK (PASSENGER)

B1442

AIR MIX DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1442 AIR MIX DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT (DRIVER)

B1443

MODE DOOR ACTUATOR CIRCUIT STUCK

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1443 MODE DOOR ACTUATOR CIRCUIT STUCK

B1446

AIR MIX DOOR ACTUATOR CIRCUIT STUCK (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1446 AIR MIX DOOR ACTUATOR CIRCUIT STUCK (DRIVER)

B1448

REAR VENT DOOR ACTUATOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1448 REAR VENT DOOR ACTUATOR CIRCUIT OPEN

B1449

REAR VENT DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B1449 REAR VENT DOOR ACTUATOR CIRCUIT SHORT-CIRCUIT

B144A

REAR VENT DOOR ACTUATOR CIRCUIT STUCK

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B144A REAR VENT DOOR ACTUATOR CIRCUIT STUCK

B14A1

SUNLOAD SENSOR CIRCUIT LOW/OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A1 SUNLOAD SENSOR CIRCUIT LOW/OPEN

NOTE:

When the sunload sensor inspection is performed indoors or in the shade, it may be diagnosed as having an open circuit due to an insufficient light volume. In this case, check the sunload sensor at a location exposed to direct sunlight.

B14A2

SUNLOAD SENSOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT-CIRCUIT

NOTE:

When the sunload sensor inspection is performed indoors or in the shade, it may be diagnosed as having an open circuit due to an insufficient light volume. In this case, check the sunload sensor at a location exposed to direct sunlight.

B14A3

REFRIGERANT PRESSURE SENSOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A3 REFRIGERANT PRESSURE SENSOR CIRCUIT OPEN

B14A4

REFRIGERANT PRESSURE SENSOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A4 REFRIGERANT PRESSURE SENSOR CIRCUIT SHORT-CIRCUIT

B14A5

REFRIGERANT FLOW SENSOR CIRCUIT OPEN

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A5 REFRIGERANT FLOW SENSOR CIRCUIT OPEN

B14A6

REFRIGERANT FLOW SENSOR CIRCUIT SHORT-CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A6 REFRIGERANT FLOW SENSOR CIRCUIT SHORT-CIRCUIT

B14A7

VARIABLE SOLENOID VALVE CIRCUIT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A7 VARIABLE SOLENOID VALVE CIRCUIT

B14A8

COMPRESSOR BREAK-IN MALFUNCTION LOW REFRIGERANT

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A8 COMPRESSOR BREAK-IN MALFUNCTION LOW REFRIGERANT

B14B1

SEAT HEATER THERMISTOR CIRCUIT OPEN (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14B1 SEAT HEATER THERMISTOR CIRCUIT OPEN (DRIVER)

B14B2

SEAT HEATER THERMISTOR CIRCUIT SHORT-CIRCUIT (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14B2 SEAT HEATER THERMISTOR CIRCUIT SHORT-CIRCUIT (DRIVER)

B14B3

SEAT HEATER THERMISTOR CIRCUIT OPEN (PASSENGER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14B3 SEAT HEATER THERMISTOR CIRCUIT OPEN (PASSENGER)

B14B4

SEAT HEATER THERMISTOR CIRCUIT SHORT-CIRCUIT (DRIVER)

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14B4 SEAT HEATER THERMISTOR CIRCUIT SHORT-CIRCUIT (DRIVER)

U0002

CAN COMMUNICATION ERROR

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0002 CAN COMMUNICATION ERROR

U0028

HEATER CONTROL PANEL COMMUNICATION ERROR

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0028 HEATER CONTROL PANEL COMMUNICATION ERROR

U0073

CAN FAILURE, BUS ‘OFF’ DETECTION

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF

Inspection mode procedure
It is possible to diagnose the DTC by performing the indicated inspection mode. After correcting the DTC, perform a necessary inspection mode and make sure that the function is resumed correctly and t ...

Read diagnostic trouble code (dtc) operation
1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. ...

Other materials:

Warning and indicator lights
Several of the warning and indicator lights illuminate momentarily and then go out when the ignition switch is initially turned to the "ON" position. This permits checking the operation of the bulbs. Apply the parking brake and turn the ignition switch to the "ON" position. For the system c ...

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