Lexus SC 400 (Z30) (1991 – 2000) – fuse box diagram
Year of production: 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Passenger compartment fuse box
| Number | Fuse | Ampere ratting [A] | Protected circuit |
| 1 | ENGINE | 7,5 | Charging system |
| 2 | HTR | 10 | Air conditioner system, rear window defogger |
| 3 | WIPER | 20 | Windshield wipers and washer |
| 4 | ST | 7,5 | Starting system, cruise control system, multiport fuel injection system/sequential multiport fuel injection system, instrument panel lights |
| 5 | IGN | 7,5 | Discharge warning light, multiport fuel injection system/sequential multiport fuel injection system, SRS airbag system |
| 6 | PANEL | 7,5 | Instrument panel lights, glovebox light |
| 7 | MIR-HTR | 10 | Outside rear view mirror defogger |
| 8 | TURN | 20 | 1991-1994: Turn signal lights, cornering lights |
| TURN | 7,5 | 1995-2000: Turn signal lights | |
| 9 | STOP | 15 | Stop lights, cruise control system cancel device |
| 10 | CIG | 15 | Cigarette lighter, theft deterrent system, shift lock system, SRS airbag system, instrument panel lights |
| 11 | RADIO NO. 2 | 7,5 | Radio, cassette tape player, compact disc player, power antenna, power rear view mirrors |
| 12 | TAIL | 15 | Tail lights, parking lights, side marker lights, license plate lights |
| 13 | 15 | ECU-IG | Cruise control system, power steering control system, shift lock system, anti–lock brake system, SRS airbag system, power door lock system, preset steering system, traction control system, electronically controlled hydraulic–driven cooling system, passenger’s seat control system |
| 14 | GAUGE | 10 | Gauges and meters, service reminder indicators and warning buzzers (except discharge and open door warning lights), back–up lights, electronically controlled automatic transmission system, automatic transmission overdrive system, headlight |
| 15 | ECU-B | 15 | SRS airbag system, power rear view mirrors |
| 16 | OBD | 7,5 | 1996-2000: On–board diagnosis system |
| 17 | FOG | 15 | 1995-2000: Fog lights |
| 18 | ST-HTR | 15 | Seat heater |
| 19 | PWR | 30 | Preset steering, electronic moon roof, power windows, theft deterrent system. |
| 20 | IG SW | 40 | Starting system |
| 21 | DOOR | 30 | Theft deterrent system, seat control system, fuel opener control system, power door lock system. |
Engine compartment fuse box
| Number | Fuse | Ampere ratting [A] | Protected circuit |
| 20 | DOME | 10 | Interior light, personal lights, door courtesy lights, ignition switch light, open door warning light, trunk room light, electronic moon roof system, preset steering system, seat belt warning system, cruise control system, air conditioner system, inside rear view mirror, door lock and theft deterrent system, foot light, power rear view mirror, locking with wireless remote control system, passenger’s seat control system |
| 21 | EFI | 30 | Multiport fuel injection system/sequential multiport fuel injection system |
| 22 | HAZ-HORN | 25 | 1991-1994: Emergency flashers, horns |
| HAZ-HORN | 15 | 1995-2000: Emergency flashers, horns | |
| 23 | RADIO NO. 1 | 20 | Radio, cassette tape player, compact disc player, power antenna |
| 24 | TEL | 15 | Telephone |
| 25 | ALT-S | 7,5 | Charging system |
| 26 | TRAC | 7,5 | 1991-1998: Traction control system |
| TRAC | 15 | 1999-2000: Traction control system | |
| 27 | HEAD. R | 15 | Right-hand headlight (low beam) |
| 28 | HEAD. L | 15 | Left-hand headlight (low beam) |
| 29 | HEAD R. UP | 15 | Right-hand headlight (high beam) |
| 30 | HEAD L. UP | 15 | Left-hand headlight (high beam) |
| 31 | INJ | 30 | Starting system |
| 32 | DRL | 7,5 | Daytime Running Light System |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.