Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU2002LEGACY GT WAGON AWD F4-2.5L SOHCREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSDTC 63VDC SYSTEM TROUBLE CODE CHARTS FOR SELECT MONITOR RESULTS
2002 Subaru Legacy GT Wagon AWD F4-2.5L SOHC
Vdc System Trouble Code Charts For Select Monitor Results
2002 Subaru Legacy GT Wagon AWD F4-2.5L SOHCSECTION Vdc System Trouble Code Charts For Select Monitor Results
TROUBLE CODE 32 FR PRESSURE REDUCING VALVE MALFUNCTION (FRONT RIGHT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 34 FL PRESSURE REDUCING VALVE MALFUNCTION (FRONT LEFT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 36 RR PRESSURE REDUCING VALVE MALFUNCTION (REAR RIGHT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 38 RL PRESSURE REDUCING VALVE MALFUNCTION (REAR LEFT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 63 NORMAL CLOSING VALVE 2 MALFUNCTION (PRIMARY SUCTION VALVE MALFUNCTION)
TROUBLE CODE 64 NORMAL CLOSING VALVE 1 MALFUNCTION (SECONDARY SUCTION VALVE MALFUNCTION)
DIAGNOSIS:
- Faulty harness/connector
- Faulty solenoid valve in VDCH/U
TROUBLE SYMPTOM:
- ABS does not operate.
- VDC does not operate.
WIRING DIAGRAM:
PROCEDURE:
No. 1 - 3
No. 4 - 6
No. 7 - 11
TROUBLE CODE 34 FL PRESSURE REDUCING VALVE MALFUNCTION (FRONT LEFT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 36 RR PRESSURE REDUCING VALVE MALFUNCTION (REAR RIGHT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 38 RL PRESSURE REDUCING VALVE MALFUNCTION (REAR LEFT OUTLET VALVE MALFUNCTION)
TROUBLE CODE 63 NORMAL CLOSING VALVE 2 MALFUNCTION (PRIMARY SUCTION VALVE MALFUNCTION)
TROUBLE CODE 64 NORMAL CLOSING VALVE 1 MALFUNCTION (SECONDARY SUCTION VALVE MALFUNCTION)
DIAGNOSIS:
- Faulty harness/connector
- Faulty solenoid valve in VDCH/U
TROUBLE SYMPTOM:
- ABS does not operate.
- VDC does not operate.
WIRING DIAGRAM:
PROCEDURE:
No. 1 - 3
No. 4 - 6
No. 7 - 11
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.