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.
1992 Subaru Legacy LSi, AWDFACTORY OEM SERVICE PROCEDURE
Power Circuits (Ignition Cranking)
- Connect DVOM between ground and control unit terminal. See the CONTROL UNIT POWER TERMINAL IDENTIFICATION table. Turn ignition switch to START position. Battery voltage should be present between control unit terminal and ground, ONLY when ignition switch is in START position.
- If voltage is not present, check fusible link. If fusible link is okay, check for an open wire between fusible link and control unit terminal, or check for a defective ignition switch.
CONTROL UNIT POWER TERMINAL IDENTIFICATION
| Application | Wire Color | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Justy | ||||||||||||||||||||||
| Carbureted | ||||||||||||||||||||||
| Ignition Off (1) | ||||||||||||||||||||||
| Terminal No. 6 | White/Blue | |||||||||||||||||||||
| Terminal No. 15 | White/Blue | |||||||||||||||||||||
| Ignition On (2) | ||||||||||||||||||||||
| Terminal No. 8 | White/Green | |||||||||||||||||||||
| Terminal No. 9 | Black/White | |||||||||||||||||||||
| PFI | ||||||||||||||||||||||
| Ignition Off (1) | ||||||||||||||||||||||
| Terminal No. 1 | Red | |||||||||||||||||||||
| Ignition On (3) | ||||||||||||||||||||||
| Terminal No. 2 | White/Blue | |||||||||||||||||||||
| Terminal No. 12 | Red | |||||||||||||||||||||
| Ignition Cranking | ||||||||||||||||||||||
| Terminal No. 17 | Black/White | |||||||||||||||||||||
| Legacy | ||||||||||||||||||||||
| Ignition Off (4) | ||||||||||||||||||||||
| Terminal No. 15 | Yellow/Red | |||||||||||||||||||||
| Ignition On (5) | ||||||||||||||||||||||
| Terminal No. 2 | Yellow/Red | |||||||||||||||||||||
| Terminal No. 12 | Yellow | |||||||||||||||||||||
| Terminal No. 13 | Yellow/Red | |||||||||||||||||||||
| Terminal No. 15 | Yellow/Red | |||||||||||||||||||||
| Loyale | ||||||||||||||||||||||
| Ignition Off (6) | ||||||||||||||||||||||
| Terminal No. 27 | Black/White | |||||||||||||||||||||
| Ignition On (7) | ||||||||||||||||||||||
| Terminal No. 29 | White | |||||||||||||||||||||
| Terminal No. 38 | Red/Blue | |||||||||||||||||||||
| Terminal No. 41 | White | |||||||||||||||||||||
| Terminal No. 49 | Red/Blue | |||||||||||||||||||||
| Ignition Cranking (8) | ||||||||||||||||||||||
| Terminal No. 18 | Lt. Green/Yellow | |||||||||||||||||||||
| SVX | ||||||||||||||||||||||
| Ignition On (9) | ||||||||||||||||||||||
| Terminal No. 2 | White/Red | |||||||||||||||||||||
| Terminal No. 13 | White/Red | |||||||||||||||||||||
|
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Factory Service Tools
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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.