Fiat 500 1st generation (2012–2019) — Key Programming Reference
- Difficulty
- hard
- Lishi / lockout
- SIP22
Key fobs & transponder keys (2 variants)
| Key | Years | FCC ID | P/N | Chip | Freq | Battery | Blade |
|---|---|---|---|---|---|---|---|
| 433.92 MHz · LTQFI2AM433TX | 2012–2019 NA; 2007–2018 EU/RoW (same Delphi key family) | LTQFI2AM433TX | 68091228AD | Philips ID46 / PCF7946A (HITAG2) | 433.92 MHz | CR2032 | SIP22 |
| 433.9 MHz · M3N-40821302 | 2014–2019 NA (Enter-N-Go option) | M3N-40821302 | 735637066 | HITAG-AES / PCF7953M (NCF29A1) | 433.92 MHz | CR2032 | SIP22 |
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: required — Tech Authority + NASTF dealer.
- Online / server access: not required (offline programming).
- On-board (no tool) sequence: not available — Fiat 500 SKIM 3 requires professional OBD tool — no self-programming procedure.
- On site: engine off · Maintain 12V+ · Clear SKIM 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 Fiat 500 uses Philips PCF7941 (ID46 HITAG-2) with Chrysler SKIM 3 immobilizer (2012-2019). Covered natively by Autel IM608 Pro II + IMKPA Chrysler module (~$5-10/session), AD Smart Pro ADS178 Chrysler, Lonsdor K518 USA + Chrysler adapter, Xhorse VVDI Key Tool Plus + KH100 Chrysler, OBDSTAR X300 DP Plus FCA menu. PIN via Tech Authority subscription or autokeyprog.com calculator.
- Standard 16-pin DLC OBD path; no XP400 PRO bench, no APB112 simulator needed for OBD-only add-key.
- Smart proximity or remote head key: ensure existing key fob battery is functional before starting.
- Verify chip before booking (this chassis facelift): Chrysler SKIM 3 era PCF7941 spans 2004-2014 typical, transitioning to SKIM 4 AES (4A chip) on 2015+ facelifts. Some 2014-2016 chassis shipped with mid-cycle chip swap — confirm transponder ID from a working key with Lonsdor K518 reader before quoting.
- Tool kit context: Autel IMKPA Chrysler module is the dominant add-key accessory (~$5-10/session). AD Smart Pro ADS178 also strong on FCA. Lonsdor LKE Smart Key Emulator for K518 simulated-key flow. Xhorse KH100 + Chrysler module confirmed. APB112 simulator NOT typically needed. G-Box bench EEPROM NOT used. XP400 PRO only for SKIM module bench fallback.
- All existing keys erased. Bring ALL replacement keys before starting — minimum 2.
- No manual AKL for Fiat 500 SKIM 3 — professional tool mandatory.
- SKIM 3 AKL via OBD needs SKIM PIN (Tech Authority subscription / autokeyprog.com / NASTF lookup) — confirm before quoting.
- Keep all existing/lost key fobs at least 10 metres from vehicle during AKL.
- AKL accessory needs: Autel IMKPA + Chrysler token for cloud calc, Lonsdor LKE Smart Key Emulator for K518 simulated-key AKL path, Xhorse KH100 Chrysler. APB112 NOT mandatory. G-Box bench EEPROM NOT used. XP400 PRO only if SKIM module EEPROM corrupted (rare).
Lockout
Door pick / decode: Lishi SIP22 (CW).
42 verified sources · Last verified: 2026-08-09
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.