Subaru Legacy Service Manual: Dtc p05a2 active grille air shutter "a" control circuit/open

Subaru Legacy Service Manual / Engine (diagnostics)(h4do) / Diagnostic procedure with diagnostic trouble code (dtc) / Dtc p05a2 active grille air shutter "a" control circuit/open

DTC DETECTING CONDITION:

Immediately at fault recognition

CAUTION:

After servicing or replacing faulty parts, perform Clear Memory Mode Clear Memory Mode > OPERATION, and Inspection Mode Inspection Mode > PROCEDURE.

STEP	CHECK	YES	NO
1.CHECK DTC. 1) Perform the Clear Memory Mode using the Subaru Select Monitor. Clear Memory Mode > OPERATION 2) Turn the ignition switch to OFF, and wait for approx. 30 seconds. 3) Turn the ignition switch to ON. 4) Check for DTC. Read Diagnostic Trouble Code (DTC)	Is P05A2 displayed in «Present fault»-	Replace the active grille shutter. Active Grille Shutter	Using the Subaru Select Monitor, perform the operation check for the active grille shutter to make sure that its open and close operation can be completed properly. NOTE: For detailed operation procedures, refer to the “Active Test”. Active Test

1. OUTLINE OF DIAGNOSIS

Detect for the malfunction of active grille shutter motor circuit.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

(1)	Active grille shutter	(3)	Resistance value (k-)	(4)	Ambient air temperature (°C (°F))
(2)	Ambient sensor

3. EXECUTION CONDITION

Diagnosis 1

Secondary Parameters	Execution condition
Battery voltage	≥ 10.9 V

Diagnosis 2

Secondary Parameters	Execution condition
Battery voltage	≥ 10.9 V
Command to active grille shutter	Open or Closed

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

Diagnosis 1

Judge as NG when the following conditions are established.

Judgment Value

Malfunction Criteria	Threshold Value
Current in the motor circuit during open/close command to the active grille shutter	> 650 mA

Time Needed for Diagnosis: 2500 ms

Diagnosis 2

Judge as NG when the following conditions are established.

Judgment Value

Malfunction Criteria	Threshold Value
Current in the motor circuit during open/close command to the active grille shutter	< 10 mA

Time Needed for Diagnosis: 2500 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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Other materials:

Caution
• Prior to starting work, pay special attention to the following:1. Always wear work clothes, a work cap, and protective shoes. Additionally, wear a helmet, protective goggles, etc. if necessary.2. Protect the vehicle using a seat cover, fender cover, etc.3. Prepare the service tools, clean cl ...