Lexus IS F 2012 Fuse Box Info
Passenger compartment fuse box location:
The fuse boxes are located under the instrument panel on the driver’s side, and on the passenger’s side.
Engine compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box (Driver’s side):
| Fuse/Relay N° and Name | Rating | Functions |
| 1. FR P/SEAT LH | 30A | Power seat |
| 2. A/C | 7.5A | Air conditioning system |
| 3. MIR HTR | 15A | Outside rear view mirror defoggers |
| 4. TV NO. 1 | 10A | Display |
| 5. FUEL OPEN | 10A | Fuel filler door opener |
| 6. TV NO. 2 | 7.5A | - |
| 7. PSB | 30A | Pre-collision seat belt |
| 8. S/ROOF | 25A | Moon roof |
| 9. TAIL | 10A | Tail lights, license plate lights, rear side marker lights |
| 10. PANEL | 7.5A | Switch illumination, air conditioning system, display, safety connect, cigarette lighter illumination, shift lever light, instrument panel lights |
| 11. RR FOG | 7.5A | - |
| 12. ECU-IG LH | 10A | Cruise control, air conditioning system, electric power steering, shift lock system, moon roof, tire inflation pressure warning system |
| 13. FR S/HTR LH | 15A | Seat heaters |
| 14. RR DOOR LH | 20A | Power windows |
| 15. FR DOOR LH | 20A | Power windows, outside rear view mirror (left) |
| 16. SECURITY | 7.5A | Smart access system with push-button start |
| 17. H-LP LVL | 7.5A | Automatic headlight leveling system |
| 18. LH-IG | 10A | Charging system, headlight cleaner, rear window defogger, electric cooling fans, emergency flashers, turn signal lights, back-up lights, stop lights, outside rear view mirror defoggers, seat belts, intuitive parking assist, air conditioning system |
| 19. FR WIP | 30A | Windshield wipers |
Passenger compartment fuse box (Passenger’s side):
| Fuse/Relay N° and Name | Rating | Functions |
| 1. FR P/SEAT RH | 30A | Power seat |
| 2. DOOR DL | 15A | - |
| 3. OBD | 7.5A | On-board diagnosis system |
| 4. STOP SW | 7.5A | Stop lights, VDIM, shift lock system, multiport fuel injection system/ sequential multiport fuel injection system, smart access system with pushbutton start |
| 5. TI & TE | 20A | Electric tilt and telescopic steering column |
| 6. RAD NO. 3 | 10A | Audio system |
| 7. GAUGE | 7.5A | Meters and gauges |
| 8. IGN | 10A | SRS airbag system, stop lights, steering lock system, fuel system, front passenger occupant classification system, safety connect |
| 9. ACC | 7.5A | Clock, air conditioning system, audio system, navigation system, display, outside rear view mirrors, smart access system with push-button start, glove box light, console box light, safety connect |
| 10. CIG | 15A | Cigarette lighter |
| 11. PWR OUTLET | 15A | Power outlet |
| 12. RR DOOR RH | 20A | Power windows |
| 13. FR DOOR RH | 20A | Power windows, outside rear view mirrors |
| 14. AM2 | 7.5A | Smart access system with push-button start |
| 15. RH-IG | 7.5A | Seat belts, intuitive parking assist, automatic transmission, seat heaters, windshield wiper de-icer |
| 16. FR S/HTR RH | 15A | Seat heaters |
| 17. ECU-IG RH | 10A | Power seats, smart access system with push-button start, outside rear view mirrors, VDIM, air conditioning system, pre-collision seat belt, electric tilt and telescopic steering, power windows, navigation system, headlights, front fog lights, parking lights, license plate lights, windshield washer |
Engine compartment fuse box (Fuse box A):
| Fuse/Relay N° and Name | Rating | Functions |
| 1. ALT-S | 7.5A | Charging system |
| 2. TURN-HAZ | 15A | Emergency flashers, turn signals |
| 3. IG2 MAIN | 20A | IG2, IGN, GAUGE |
| 4. RAD NO. 2 | 30A | Audio system |
| 5. D/C CUT | 20A | DOME, MPX-B |
| 6. RAD NO. 1 | 30A | Audio system |
| 7. MPX-B | 10A | Headlights, front fog lights, parking lights, windshield washer, horns, power door lock system, power windows, power seats, electric tilt and telescopic steering column, meters and gauges, smart access system with push-button start, outside rear view mirrors, air conditioning system |
| 8. DOME | 10A | Interior lights, meters and gauges, front footwell lights |
| 9. CDS | 10A | Electric cooling fans |
| 10. E/G-B | 60A | FR CTRL-B, ETCS, A/F, STR LOCK, INJ2, TEL |
| 11. P/I-B | 60A | EFI, F/PMP, INJ |
| 12. ABS 1 | 50A | VDM |
| 13. RH J/B-B | 30A | FR DOOR RH, RR DOOR RH, AM2 |
| 14. VVT | 40A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 15. MAIN | 30A | H-LP R LWR, H-LP L LWR, headlight low beams |
| 16. STARTER | 30A | Smart access system with push-button start |
| 17. LH J/B-B | 30A | FR DOOR LH, RR DOOR LH, SECURITY |
| 18. EPS | 80A | Electric power steering |
| 19. ALT | 180A | LH J/B-AM, E/G-AM, HEATER, FAN1, FAN2, DEFOG, RH J/B-AM, ABS 2 |
| 20. LH J/B-AM | 80A | S/ROOF, FR P/SEAT LH, TV NO.1, A/C, F/OPN, PSB, FR WIP, H-LP LVL, LH-IG, ECU-IG LH, PANEL, TAIL, MIR HTR, TV NO. 2, FR S/HTR LH |
| 21. RH J/B-AM | 80A | OBD, STOP SW, TI&TE, FR P/SEAT RH, RAD NO. 3, ECU-IG RH, RH-IG, FR S/HTR RH, ACC, CIG, PWR OUTLET |
| 22. ABS2 | 30A | VDIM |
| 23. DEFOG | 50A | Rear window defogger |
| 24. FAN2 | 40A | Electric cooling fans |
| 25. FAN1 | 40A | Electric cooling fans |
| 26. HEATER | 50A | CDS, air conditioning system |
| 27. E/G-AM | 60A | H-LP CLN, FR CTRL AM, DEICER |
Engine compartment fuse box (Fuse box B):
| Fuse/Relay N° and Name | Rating | Functions |
| 1. SPARE | 30A | Spare fuse |
| 2. SPARE | 25A | Spare fuse |
| 3. SPARE | 10A | Spare fuse |
| 4. FR CTRL-B | 25A | HORN, H-LP HI |
| 5. A/F | 15A | Exhaust system |
| 6. ETCS | 10A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 7. TEL | 10A | Safety connect |
| 8. INJ2 | 25A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 9. STR LOCK | 25A | Steering lock system |
| 10. H-LP CLN | 30A | Headlight cleaner |
| 11. DEICER | 25A | Windshield wiper de-icer |
| 12. FR CTRL-AM | 30A | FR FOG, WASHER, FR TAIL |
| 13. IG2 | 10A | Ignition system |
| 14. EFI NO. 2 | 10A | Fuel system, exhaust system, multiport fuel injection system/sequential multiport fuel injection system |
| 15. H-LP R LWR | 15A | Headlight low beam (right) |
| 16. H-LP L LWR | 50A | Headlight low beam (left) |
| 17. F/PMP | 25A | Fuel system |
| 18. EFI | 25A | Multiport fuel injection system/ sequential multiport fuel injection system, EFI NO. 2 |
| 19. INJ | 25A | Multiport fuel injection system/ sequential multiport fuel injection system |
| 20. H-LP UPR | 15A | Headlight beams |
| 21. HORN | 10A | Horns |
| 22. WASHER | 20A | Windshield washer |
| 23. FR TAIL | 10A | Parking lights, side marker lights |
| 24. FR FOG | 15A | Front fog lights |
