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Fuse box diagram (fuse layout), location, and assignment of fuses Lexus ES 250 (VZV21) (1989, 1990, 1991).
Checking and Replacing Fuses
The fuses are designed to blow, protecting the wiring harness and electrical systems from damage. If any of the electrical components do not operate, a fuse may have melted. If this happens, check and replace the fuses as necessary. Look carefully at the fuse. If the thin wire inside is broken, the fuse has blown. If you are not sure or if it is too dark to see, try replacing the suspected fuse with one of the same value that you know is good.
In case if you do not have a spare fuse, in an emergency you can pull out fuses, which may be dispensable for normal driving (for example, audio system, cigarette lighter, OBD, seat heater, and the like), and use it if its amperage rating is the same. If you cannot use one of the same amperage, use one lower than, but as close as possible to, the amperage. If the amperage is lower than that specified, the fuse might blow out again but this does not indicate anything wrong. Be sure to get the correct fuse as soon as possible and return the substitute to its original clips.
Notice
- Always switch off the ignition system and the affected electrical circuit before replacing a fuse.
- Never use a fuse of a higher amperage rating than that indicated, or use any other object in place of a fuse, even as a temporary fix. This can cause extensive damage or even fire.
- If the replaced fuse blows again, have the vehicle inspected by any authorized Lexus dealer or repairer, or another duly qualified and equipped professional.
Location of fuses
- Driver’s side kick panel
- Engine compartment
- Passenger’s side kick panel
Passenger Compartment Fuse Boxes
In the cabin, there are two fuse blocks – the first in the driver’s side kick panel, and the second in the passenger’s side kick panel.
| № | Fuse | A | Protected components |
|---|---|---|---|
| 1 | CIG | 15 | Cigarette lighter, digital clock display, shift lock system (automatic transmission) |
| 2 | ENGINE | 10 | Charging system |
| 3 | GAUGE | 15 | Gauges and meters, warning lights (except discharge and open door warning lights), back-up lights, automatic transmissio noverdrive system, rear windo wdefogger, power windows, power door lock system, Outside rear view mirror defogger |
| 4 | RADIO | 7.5 | Radio, cassette tape player, power rear view mirrors |
| 5 | WIPER | 20 | Windshield wipers and washer |
| 6 | TURN | 7.5 | Turn signal lights |
| 7 | ECU-IG | 15 | Cruise control system, electronically controlled automatic transmission system, shift lock system (automatic transmission) |
| 8 | STOP | 20 | Stop lights, cruise control system cancel device |
| 9 | DEF-I/UP | 10 | Engine idle up system |
| 10 | TAIL | 15 | Tail lights, parking lights, license plate lights, instrument panel lights, glovebox light |
| 11 | IGN | 7.5 | Charging system, discharge warning light, emission control system, electric cooling fans, electronic fuel injection system |
| 12 | ECU-B | 10 | Rear window defogger, anti-lock brake system |
| 13 | FOG | 15 | Fog lights |
| 21 | DEFOG | 30 | Rear window defogger |
| 22 | PWR | 30 | Moon roof, power windows, power door lock system, power seat |
| 20 | A/C | 10 | Air conditioner system |
| 23 | HEATER | 40 | Air conditioner control system |
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Engine Compartment Fuse Box Diagram
| № | Fuse | A | Protected components |
|---|---|---|---|
| 14 | HEAD (RH) | 15 | Right-hand headlight |
| 15 | DOME | 20 | Radio, cassette tape player, clock, electronically controlled automatic transmission system, power antenna, interior light, personal lights, door courtesy lights, trunk room light, ignition switch light, open door warning light |
| 16 | HEAD (LH) | 15 | Left-hand headlight |
| 17 | HAZ- HORN | 15 | Emergency flashers, horns |
| 18 | EFI | 15 | Electronic fuel injection system |
| 19 | CHARGE | 7.5 | Charging system, discharge warning light |
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