Toyota 4Runner 3rd (N180) (1996–2002) — Key Programming Reference
- Difficulty
- easy
- Lishi / lockout
- TOY43
Key fobs & transponder keys (4 variants)
| Key | Years | FCC ID | P/N | Chip | Freq | Battery | Blade |
|---|---|---|---|---|---|---|---|
| us_mechanical_master_9099900185 | 1996-1997 NA — pre-immobilizer era, mechanical-only ignition | n/a | 90999-00185 | none | n/a | n/a | TR47 |
| us_transponder_4c_8978526020 | 1998-2002 NA — Toyota immobilizer rollout (always-on, required to start engine) | n/a | 89785-26020 | Texas 4C (Crypto-1 transponder) | n/a | n/a | TR47 / TOY43AT4 / TP07TOYO-15.P |
| us_factory_remote_hyq1512y | 1998-2002 NA — factory keyless entry option (Limited standard, optional on SR5) | HYQ1512Y | 89742-35020 | none | 314.35 MHz (315 MHz nominal) | CR2016 | n/a |
| 303.875 MHz · BAB237131-022 | 1996-1999 NA — dealer-installed option only (NOT factory-equipped) | BAB237131-022 | 08191-00922 | none | 303.875 MHz | CR2025 | n/a |
Programming procedures
What the job needs
- Add a key: no existing working key needed.
- All keys lost: no existing working key needed.
- PIN / security code: No PIN — mechanical only.
- Online / server access: not required (offline programming).
- On-board (no tool) sequence: possible for this case.
- On site: engine off · Maintain 12V+ · No DTC scan needed.
- 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 Toyota 4Runner (1996-2002) is pre-immobilizer — no transponder chip. The blade alone starts the vehicle. Locksmith cuts to OEM code from VIN or existing key. No chip-programming tools needed. Remote (if equipped) learned via in-vehicle key sequence per OEM service manual.
- Key/remote: ensure existing battery (if applicable) is functional before starting.
- Tool kit context: Lonsdor K518 USA + Autel IM608 Pro II + IMKPA can reprogram remote-function radio for pre-immobilizer cars if equipped. APB112 simulator, G-Box bench EEPROM, XP400 PRO, LKE Smart Key Emulator NOT applicable to mechanical-only chassis.
- Verify chip before booking (this chassis facelift): mechanical-only pre-immobilizer chassis. Some 1996-1999 facelift versions added transponder mid-cycle — confirm key has no chip with Lonsdor K518 reader before quoting.
- Toyota 4Runner pre-immobilizer — no chip-level AKL. Mechanical AKL via lock cylinder rekey or new ignition cylinder if lost lock.
- Bring ALL replacement remotes (if equipped) before starting in-vehicle programming sequence.
- No professional tool needed for blade — only locksmith cut. Remote-only AKL via in-vehicle key dance.
Lockout
Door pick / decode: Lishi TOY43 (CW).
60 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.