Lexus RX 450h 2015 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located under the instrument panel on the driver’s side.
Engine compartment fuse box location:
Luggage compartment fuse box location:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. P/POINT | 15A | Power outlet |
| 2. ECU-ACC | 10A | Navigation system, air conditioning system, audio system, multiplex communication system, multi-information display, head-up display |
| 3. CIG | 15A | Power outlet |
| 4. RADIO NO. 2 | 7.5A | Audio system, navigation system |
| 5. GAUGE NO. 1 | 10A | Emergency flashers, navigation system, head-up display, air conditioning system, Vehicle Proximity Notification System, audio system |
| 6. ECU-IG1 NO. 3 | 10A | Outside rear view mirror, windshield wipers and washer, seat heaters, starter system, power outlet, moon roof, air conditioning system |
| 7. ECU-IG1 NO. 1 | 10A | Multiplex communication system, steering sensor, shift lock control system, tilt and telescopic steering, power back door, pre-collision system, vehicle dynamics integrated management, tire pressure warning system |
| 8. S/ROOF | 30A | Moon roof |
| 9. FUEL OPN | 7.5A | Fuel filler door opener |
| 10. PSB | 30A | Pre-collision seat belt |
| 11. TI & TE | 30A | Tilt and telescopic steering system |
| 12. DR LOCK | 10A | - |
| 13. FR FOG | 15A | Front fog lights |
| 14. P-SEAT LH | 30A | Power seat (left-side) |
| 15. 4WD | 7.5A | AWD system |
| 16. INVERTER | 20A | Power outlet |
| 17. RR FOG | 7.5A | - |
| 18. D/L ALT B | 25A | Multiplex communication system, power door lock system, power back door |
| 19. EPS | 10A | Electric power steering system |
| 20. ECU-IG1 NO. 2 | 10A | Intuitive parking assist, pre-collision seat belt, capacitor |
| 21. PANEL | 10A | Switch illumination, navigation system, hybrid transmission system, audio system, multi-information display, air conditioning system, multiplex communication system |
| 22. TAIL | 10A | Parking lights, front side marker lights, tail lights, license plate lights, front fog lights, towing converter |
| 23. AIR SUS | 20A | - |
| 24. P-SEAT RH | 30A | Power seat (right-side) |
| 25. OBD | 7.5A | On-board diagnosis |
| 26. FR DOOR | 25A | Front power window (right-side), outside rear view mirror |
| 27. RR DOOR | 25A | Rear power window (right-side) |
| 28. FL DOOR | 25A | Front power window (left-side), outside rear view mirror |
| 29. RL DOOR | 25A | Rear power window (left-side) |
| 30. FR WASH | 25A | Windshield wipers and washer |
| 31. RR WIP | 15A | Windshield wipers and washer |
| 32. RR WASH | 20A | Windshield wipers and washer |
| 33. FR WIP | 30A | Windshield wipers and washer |
| 34. ECU IG2 | 10A | Multiport fuel injection system/sequential multiport fuel injection system, front passenger occupant classification system, SRS airbag system, stop lights, electronically controlled brake system, steering lock system, hybrid system |
| 35. GAUGE NO. 2 | 7.5A | Gauge and meters |
| 36. RH S-HTR | 15A | Seat heater (right-side) |
| 37. LH S-HTR | 15A | Seat heater (left-side) |
Engine compartment fuse box A:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. PCU | 15A | Hybrid system |
| 2. IGCT NO. 2 | 10A | Hybrid system |
| 3. IGCT NO. 3 | 10A | Hybrid system |
| 4. INV W/P | 10A | Hybrid system |
Engine compartment fuse box B:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. RR DEF | 50A | Rear window defogger |
| 2. AIR SUS | 50A | - |
| 3. HEATER | 50A | Air conditioning system |
| 4. ABS NO. 1 | 50A | Electronically controlled brake system |
| 5. RDI FAN NO. 1 | 40A | Electric cooling fans |
| 6. RDI FAN NO. 2 | 40A | Electric cooling fans |
| 7. H-LP CLN | 30A | Headlight cleaner |
| 8. PBD | 30A | Power back door system |
| 9. HV R/B NO. 1 | 30A | PCU, IGCT NO. 2, IGCT NO. 3, INV W/P |
| 10. PD | 50A | A/F, H-LP RH HI, H-LP LH LO, H-LP RH LO, H-LP LH HI, HORN, S-HORN |
| 11. ABS NO. 2 | 50A | Electronically controlled brake system |
| 12. HV R/B NO. 2 | 80A | ABS MAIN NO. 1, ABS MAIN NO. 2, A/C W/P, BATT FAN, OIL PMP |
| 13. DCDC | 150A | IG1 MAIN, TOWING BATT, DEICER, TOWING, STOP, RDI FAN NO. 1, ABS NO. 1, RR DEF, AIR SUS, HEATER, RDI FAN NO. 2, H-LP CLN, PBD, ECU-IG1 NO. 1, ECU-IG1 NO. 3, GAUGE NO. 1, ECU-IG1 NO. 2, EPS, FR WIP, RR WIP, FR WASH, RR WASH, RH S-HTR, LH S-HTR, TAIL, PANEL, D/L ALT B, FR FOG, FR DOOR, FL DOOR, RR DOOR, RL DOOR, PSB, P-SEAT LH, P-SEAT RH, TI&TE, FUEL OPN, DR LOCK, OBD, RR FOG, S/ROOF, 4WD, INVERTER, ECU-ACC, P/POINT, CIG, RADIO NO. 2 |
| 14. AMP1 | 30A | Audio system |
| 15. EFI MAIN | 30A | Multiport fuel injection system/sequential multiport fuel injection system, EFI NO. 1, EFI NO. 2, F/PMP |
| 16. AMP2 | 30A | Audio system |
| 17. IG2 MAIN | 30A | IGN, GAUGE NO. 2, ECU IG2 |
| 18. IP JB | 25A | Power door lock system |
| 19. STR LOCK | 20A | Starter system |
| 20. RAD NO. 3 | 15A | Meters and gauges, navigation system, audio system |
| 21. HAZ | 15A | Emergency flashers |
| 22. ETCS | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 23. RAD NO. 1 | 10A | Audio system, navigation system |
| 24. AM2 | 7.5A | Starter system |
| 25. ECU-B NO. 2 | 7.5A | Air conditioning system, front passenger occupant classification system, audio system, vehicle dynamics integrated management, power windows, electric power steering system |
| 26. MAYDAY/TEL | 7.5A | MAYDAY/TEL |
| 27. IMMOBI | 7.5A | IMMOBI |
| 28. ABS MAIN NO. 3 |
15A | Brake system |
| 29. DRL | 7.5A | Daytime running light system |
| 30. IGN | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 31. DOME | 10A | Vanity mirror lights, luggage compartment lights, interior lights, personal lights, door courtesy lights, footwell lights, scuff lights |
| 32. ECU-B NO. 1 | 10A | Tilt and telescopic steering, multiplex communication system, meters and gauges, driving position memory, power seats, power back door, head-up display, starter system, outside rear view mirror, steering sensor, garage door opener |
| 33. EFI NO. 1 | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 34. WIP-S | 7.5A | Cruise control |
| 35. ECU-IG1 NO. 4 | 10A | Air conditioning system, rear window defogger, electronically controlled brake system, electric cooling fans |
| 36. BK/UP LP | 7.5A | Back-up lights |
| 37. ECU-IG1 NO. 5 | 15A | Air conditioning system |
| 38. ECU-IG1 NO. 6 | 10A | Head light cleaner, cruise control, air conditioning system, Blind Spot Monitor |
| 39. EFI NO. 2 | 10A | Multiport fuel injection system/sequential multiport fuel injection system |
| 40. F/PMP | 15A | Multiport fuel injection system/sequential multiport fuel injection system |
| 41. DEICER | 25A | Windshield wipers and washer |
| 42. STOP | 7.5A | Vehicle Proximity Notification System, vehicle dynamics integrated management, stop lights, multiport fuel injection system/sequential multiport fuel injection system, shift lock control system, starter system, cruise control |
| 43. TOWING BATT | 20A | - |
| 44. TOWING | 30A | Trailer lights |
| 45. FILTER | 10A | - |
| 46. IG1 MAIN | 30A | ECU-IG1 NO. 6, BK/UP LP, ECU-IG1 NO. 5, ECU-IG1 NO. 4 |
| 47. H-LP RH HI | 15A | Right-hand headlight (high beam) |
| 48. H-LP LH HI | 15A | Left-hand headlight (high beam) |
| 49. BIXENON | 10A | - |
| 50. H-LP RH LO | 15A | Right-hand headlight (low beam) |
| 51. H-LP LH LO | 15A | Left-hand headlight (low beam) |
| 52. HORN | 10A | Horn |
| 53. A/F | 20A | Multiport fuel injection system/sequential multiport fuel injection system |
| 54. S-HORN | 7.5A | S-HORN |
Engine compartment fuse box C:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. ABS MAIN NO. 1 | 10A | Brake system |
| 2. ABS MAIN NO. 2 | 10A | Brake system |
| 3. BATT FAN | 15A | Battery cooling fan |
| 4. OIL PMP | 10A | Hybrid system |
| 5. A/C W/P | 10A | Air conditioning system |
Luggage compartment fuse box A:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. DCDC-S | 7.5A | Hybrid system |
| 2. CAPACITOR | 10A | Capacitor |
Luggage compartment fuse box B:
| Fuse/Relay N° and Name | Rating | Functions |
| 1. MAIN | 180A | All electrical components |
| 2. RR-B | 50A | CAPACITOR, DCDC-S |
| 3. EPS | 80A | Hybrid system |
