SUBARU impreza SERVICE and USER MANUAL

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:

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 B14A2 displayed?

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT">Go to Step 2.

Check the connection of the sunload sensor circuit.

2.CHECK SUNLOAD SENSOR.

1) Disconnect the sunload sensor.

2) Read the DTC using Subaru Select Monitor.

Is B14A1 displayed?

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

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

Check the connection of the sunload sensor circuit.

Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B14A2 SUNLOAD SENSOR CIRCUIT SHORT">Go to Step 4.

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 — No. 2:

Is there continuity?

Repair or replace the short circuit of the harness.

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


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