SUBARU impreza SERVICE and USER MANUAL

DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN


HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)

DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN

DTC DETECTING CONDITION:

Sunload sensor circuit is open. (Displayed for current malfunction)

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.

TROUBLE SYMPTOM:

Operation is performed as no sunload.

WIRING DIAGRAM:

Air conditioning system Air Conditioning System > WIRING DIAGRAM Air Conditioning System > WIRING DIAGRAM

STEPCHECKYESNO

1.CHECK CONNECTOR.

1) Check the condition of connector connection.

2) Read the DTC using Subaru Select Monitor.

Is B14A1 displayed?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN">Go to Step 2.

Check the connection of the sunload sensor circuit.

2.CHECK SUNLOAD SENSOR.

1) Disconnect the sunload sensor.

2) Short the connector.

3) Read the DTC using Subaru Select Monitor.

Is B14A2 displayed?

Replace the sunload sensor. Sunload Sensor (Auto A/C Model) > REMOVAL

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN">Go to Step 3.

3.CHECK HARNESS.

1) Turn the ignition switch to ON.

2) Using the tester, measure the voltage between terminals.

Connector & terminal

(i51) No. 2 (+) — No. 1 (−):

Is the voltage 4.5 — 5.0 V?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A1 SUNLOAD SENSOR CIRCUIT OPEN">Go to Step 4.

Repair or replace the open circuit of the harness.

4.CHECK HARNESS.

1) Disconnect the connector from the A/C control panel.

2) Using a tester, check continuity between terminals.

Connector & terminal

(i51) No. 1 — (i88) No. 14:

(i51) No. 1 — (i88) No. 16:

Is there continuity?

Replace the A/C control panel. Control Panel > REMOVAL

Repair or replace the short circuit of the harness.


_

We advise to look

DTC B14E3 AIR MIX DOOR ACTUATOR STEPPING MOTOR CIRCUIT WIRE BREAK (PASSENGER’S SEAT) DTC B14E3 AIR MIX DOOR ACTUATOR STEPPING MOTOR CIRCUIT WIRE BREAK (PASSENGER’S SEAT) HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC B14E3 AIR MIX DOOR ACTUATOR STEPPING MOTOR CIRCUIT WIRE BREAK (PASSENGER’S SEAT) DTC DETECTING CONDITION: Air mix...
DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT DTC DETECTING CONDITION: Sunload sensor circuit is shorted. TROUBLE SYMPTOM:...
DTC U0101 LOST COMMUNICATION WITH TCM HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC U0101 LOST COMMUNICATION WITH TCM Detected when CAN data is not received from TCM. NOTE: Perform the diagnosis for LAN...
DTC B14E9 INTAKE DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK DTC B14E9 INTAKE DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC B14E9 INTAKE DOOR ACTUATOR POTENTIOMETER CIRCUIT WIRE BREAK DTC DETECTING CONDITION: Intake door actuator potentiometer...
DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC U0416 INVALID DATA RECEIVED FROM VEHICLE DYNAMICS CONTROL MODULE This is detected when CAN data from VDC is abnormal. NOTE:...
DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE Detected when CAN data is not received from VDC. NOTE:...
← DTC B1433 OUTSIDE AIR SENSOR CIRCUIT SHORT-CIRCUIT (AIR-CONDITIONING) HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC U0122 LOST COMMUNICATION WITH VEHICLE DYNAMICS CONTROL MODULE Detected...
DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT → HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC) DTC U0122 LOST...