Component Locations
- Engine compartment junction and relay block is located at right side of engine compartment. See Fig 1. No. 1 junction and relay block contains fuses and relays. For identification of components, see Fig 3. For identification of protected circuits, see table below. For wiring diagrams of No. 1 junction and relay block circuits, see appropriate SYSTEM WIRING DIAGRAMS article.
- Engine compartment No. 2 relay block is located at left side of engine compartment. See Fig 1. No. 2 relay block contains fuses and relays. For identification of components, see Fig 4. For identification of protected circuits, see table below. For wiring diagrams of engine compartment No. 2 relay block circuits, see POWER DISTRIBUTION in appropriate SYSTEM WIRING DIAGRAMS article.
- Headlight cleaner control relay is located at left side of engine compartment. See Fig 1. For wiring diagrams of headlight cleaner control relay circuits, see WIPER/WASHER in appropriate SYSTEM WIRING DIAGRAMS article.
ENGINE COMPARTMENT RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Engine Compartment No. 1 Junction And Relay Block |
| Engine Compartment No. 2 Relay Block |
| Headlight Cleaner Control Relay |
ENGINE COMPARTMENT NO. 1 JUNCTION & RELAY BLOCK RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Head LP Relay |
| IG2 Relay |
ENGINE COMPARTMENT NO. 1 JUNCTION & RELAY BLOCK FUSE IDENTIFICATION LEGEND
| Fuse | System | |
|---|---|---|
| 5A | ALT-S | Charging |
| 5A | TEL | Cellular Mobile Telephone (w/ LEXUS Link System) LEXUS Link System (Mayday System) Cellular Mobile Telephone (w/o LEXUS Link System |
| 10A | HORN | Horn Multiplex Communication System (J/B ECU) Theft Deterrnt and Door Lock Control |
| 15A | ETCS | Cruise Control Electronically Controlled Transmission and A/T Indic Engine Control |
| 15A | H-LP L LWR | Headlight Multiplex Communication System (J/B ECU) |
| 15A | H-LP R LWR | Headlight Multiplex Communication System (J/B ECU) |
| 15A | TURN-HAZ | Multiplex Communication System (J/B ECU) Theft Deterrnt and Door Lock Control Turn Signal and Hazard Warning Light |
| 20A | H-LP UPR | Headlight Multiplex Communication System (J/B ECU) |
| 25A | D-DOOR | Illumination Interior Light Metaltop Roof Control Mirror Heater Multiplex Communication System (Door ECU) Power Window Remote Control Mirror Theft Deterrnt and Door Lock Control Wireless Door Lock Control |
| 25A | EFI | Cruise Control Electronically Controlled Transmission and A/T Indic Engine Control |
| 25A | P-DOOR | Illumination Interior Light Metaltop Roof Control Mirror Heater Multiplex Communication System (Door ECU) Power Window Remote Control Mirror Theft Deterrnt and Door Lock Control Wireless Door Lock Control |
| 30A | AM2 | Engine Control Starting and Ignition |
| 30A | H-LP CLN | Headlight Cleaner |
| 30A | RADIO NO.1 | Auto Antenna LEXUS Navigation System Radio and Player |
| 40A | ABS NO.2 | VSC and PPS |
| 40A | FAN | Radiator Fan |
| 40A | FAN NO.2 | Radiator Fan |
| 50A | HEATER | Automatic Air Conditioning |
| 50A | MAIN | Automatic Light Control Headlight Light Auto Turn Off Multiplex Communication System (J/B ECU) Theft Deterrnt and Door Lock Control |
| 50A | RR J/B | Automatic Light Control Back-Up Light Light Auto Turn Off Multiplex Communication System (J/B ECU) Stop Light Taillight |
| 60A | ABS NO.1 | VSC and PPS |
| 140 A | ALT | Charging |
ENGINE COMPARTMENT NO. 2 RELAY BLOCK RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Starter Relay |
| ABS Motor Relay |
| Front Controller |
| TRAC Motor Relay |
| Wash Relay |
| Horn Relay |
| A/C COMP Relay |
| CRA Relay |
| CIR OPN Relay |
| FR Fog Relay |
| ABS SOL Relay |
| EFI Relay |
| Fan Relay |
| Heater Relay |
| F/PMP Relay |
ENGINE COMPARTMENT NO. 2 RELAY BLOCK FUSE IDENTIFICATION LEGEND
| Fuse | System | |
|---|---|---|
| 5A | IGN | Cruise Control Electronically Controlled Transmission and A/T Indicator Engine Control Engine Immobiliser System VSC and PPS |
| 7.5A | STARTER | Electronically Controlled Transmission and A/T Indicator Engine Control LEXUS Navigation System Starting and Ignition |
| 10A | EFI NO.2 | Engine Control |
| 10A | INJ | Engine Control Starting and Ignition |