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.
1993 Subaru SVXFACTORY OEM SERVICE PROCEDURE
Trouble Code Definition
TROUBLE CODE IDENTIFICATION
| Code | Circuit Affected | Probable Cause | ||
|---|---|---|---|---|
| 11 | Crank Angle Sensor No. 1 | No Reference Signal | ||
| 12 | Starter Switch | Open/Short Circuit | ||
| 13 | Cam Angle Sensor | No Signal | ||
| 14 | Fuel Injector No. 1 | Inoperative Fuel Injector | ||
| 15 | Fuel Injector No. 2 | Inoperative Fuel Injector | ||
| 16 | Fuel Injector No. 3 | Inoperative Fuel Injector | ||
| 17 | Fuel Injector No. 4 | Inoperative Fuel Injector | ||
| 18 | Fuel Injector No. 5 | Inoperative Fuel Injector | ||
| 19 | Fuel Injector No. 6 | Inoperative Fuel Injector | ||
| 21 | Coolant Temperature Sensor | Open/Short Circuit | ||
| 22 | Knock Sensor No. 1 (Right) | Open/Short Circuit | ||
| 23 | Airflow Sensor Circuit | Open/Short Circuit | ||
| 24 | By-Pass Air Control Valve | Open/Short Circuit | ||
| 28 | Knock Sensor No. 2 (Left) | Abnormal Sensor Signal | ||
| 29 | Crank Angle Sensor No. 2 | No Signal | ||
| 31 | Throttle Position Sensor | Open/Short Circuit | ||
| 32 | Oxygen Sensor No. 1 (Right) | Sensor Inoperative | ||
| 33 | Vehicle Speed Sensor No. 2 | No Reference Signal | ||
| 34 | EGR Solenoid | EGR Solenoid Valve Inoperative | ||
| 35 | Purge Control Solenoid Valve | Open/Short Circuit | ||
| 37 | Oxygen Sensor No. 2 (Left) | Sensor Inoperative | ||
| 38 | Engine Torque Control | Shorted Circuit | ||
| 41 | Air/Fuel Learning Control | Faulty Learning Control Function | ||
| 45 | Atmospheric Pressure Sensor | Faulty Sensor | ||
| 51 | Neutral Switch | Abnormal Signal | ||
| 52 | Parking Brake Switch | Abnormal Signal | ||
| 55 (1) | EGR Temperature Sensor | Abnormal Signal | ||
| 56 (1) | EGR System | Stuck Open/Closed EGR | ||
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Factory Service Tools
Use the Manual With the Right Hardware
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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.