Subaru Legacy 3rd generation (2000–2004) — Key Programming Reference
- Difficulty
- easy
- Lishi / lockout
- DAT17
Key fobs & transponder keys (2 variants)
| Key | Years | FCC ID | P/N | Chip | Freq | Battery | Blade |
|---|---|---|---|---|---|---|---|
| 434 MHz · A269ZUA111 | 2000–2004 (NA MY); global 1999–2006 across Legacy/Outback/Forester/Impreza/Baja | A269ZUA111 | 88036-AE060 | none | 433.92 MHz | CR2032 | n/a |
| mechanical · X251/SUB1 | 2000–2004 (US/Canada — no factory immobilizer this era) | n/a | 57497AE01A | none | n/a | n/a | X251 / SUB1 (ILCO X251, JMA SUB-1, Silca NSN19) |
Programming procedures
What the job needs
- Add a key: 1 existing working key required.
- All keys lost: no existing working key needed.
- PIN / security code: BIU PIN tool-side via OBD.
- Online / server access: not required (offline programming).
- On-board (no tool) sequence: not available — Subaru Legacy 4D60/4D62 requires professional OBD tool — no self-programming procedure for this transponder family.
- On site: engine off · Maintain 12V+ · Clear IMMO DTCs.
- Bring: Photo ID + vehicle registration. VIN cross-check before start.
Tool coverage
Documented for this case on: Autel IM608 Pro II · Autel IM508S · Autel KM100 · Xhorse Key Tool Plus · Xhorse Key Tool Max Pro · Lonsdor K518 Pro / K519 · OBDSTAR X300 DP Plus · AutoProPad G2/G3 · Advanced Diagnostics Smart Pro · Launch X431 IMMO Elite / IMMO Plus. Step-by-step menu paths for each tool are in the app.
Notes & cautions
- This chassis Subaru Legacy uses Texas 4D60 / 4D62 (Subaru G chip, DST80 80-bit, 2000-2004). 4D60/4D62 covered by Autel IM608 Pro II + IMKPA Subaru module, Lonsdor K518 USA + Subaru adapter, Xhorse VVDI Key Tool Plus + KH100 Subaru, OBDSTAR X300 DP Plus Subaru menu. Standard 16-pin DLC OBD path; no XP400 PRO bench, no APB112 simulator needed for OBD-only add-key.
- Subaru BIU (Body Integrated Unit) handles IMMO function — pre-2015 chassis pre-CAN; ensure tool firmware supports legacy K-line for some years.
- Smart proximity or remote head key: ensure existing key fob battery is functional before starting.
- Verify chip before booking (this chassis facelift): 4D60 (2002-2007 typical) and 4D62 (2008-2014 typical) require different tool flows on some VINs. Some WRX/STI 2008-2010 used dual-immo BIU+ECM setup — confirm transponder ID from a working key with Lonsdor K518 reader before quoting.
- Tool kit context: Autel IMKPA Subaru module is the dominant add-key accessory (~$5-10/session). Lonsdor LKE Smart Key Emulator for K518 simulated-key flow on master-less chassis. Xhorse KH100 + Subaru module also confirmed. APB112 simulator, G-Box bench EEPROM NOT required for OBD-only 4D60 add-key. XP400 PRO only for BIU EEPROM bench fallback.
- All existing keys erased. Bring ALL replacement keys before starting — minimum 2.
- No manual AKL for Subaru Legacy 4D60/4D62 — professional tool mandatory.
- 4D60/4D62 AKL via OBD on this chassis (facelift Subaru) — BIU PIN read tool-side; NASTF lookup usually not required.
- Keep all existing/lost key fobs at least 10 metres from vehicle during AKL.
- AKL accessory needs: Autel IMKPA Subaru token, Lonsdor LKE Smart Key Emulator for K518 AKL path, Xhorse KH100 Subaru. APB112 simulator NOT mandatory. G-Box bench EEPROM NOT used. XP400 PRO only if BIU EEPROM corrupted (rare).
Lockout
Door pick / decode: Lishi DAT17 (CW).
48 verified sources · Last verified: 2026-08-10
Open full case in KeyAssist →Step-by-step tool menu paths, verified source links and video guides for this case are in the KeyAssist app — free to start, works offline.