Lexus GS450h (2013) – fuse box diagram
Year of production: 2013
Engine compartment

engine compartment
Fuse | Ampere rating [A] | Circuit protected | |
1 | IGN | 10 | Starting system |
2 | INJ | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
3 | EFI NO.2 | 10 | Air intake system, exhaust system |
4 | IG2 MAIN | 20 | IGN, GAUGE, INJ, AIR BAG, IG2 NO.1, LH-IG2 |
5 | EFI MAIN | 25 | Multiport fuel injection system/sequential multiport fuel injection system, EFI NO.2 |
6 | A/F | 15 | Air flow sensor |
7 | EDU | 20 | Multiport fuel injection system/sequential multiport fuel injection system |
8 | F/PMP | 25 | Multiport fuel injection system/sequential multiport fuel injection system |
9 | H-LP RH-LO | 20 | Right-hand headlight (low beam)* |
10 | H-LP LH-LO | 20 | Left-hand headlight (low beam)* |
11 | ABS MAIN 2 | 10 | Brake system |
12 | ABS MAIN 1 | 10 | Brake system |
13 | IGCT NO.1 | 30 | IGCT NO.2, IGCT NO.3, IGCT NO.4, IGCT NO.5 |
14 | ECU-B | 7,5 | Smart access system with push-button start |
15 | INV W/P | 10 | Hybrid system |
16 | ETCS | 10 | Multiport fuel injection system/sequential multiport fuel injection system |
17 | EPS-B | 10 | Electric power steering system |
18 | D/C CUT | 30 | DOME, MPX-B |
19 | HORN | 10 | Horn |
20 | ODS | 5 | Occupant classification system |
21 | TV | 7,5 | Remote Touch screen |
22 | P/I-B NO.2 | 80 | IG2 MAIN, EFI MAIN, EDU, F/PMP, A/F |
23 | ABS NO.2 | 30 | ECB |
24 | P/I-B NO.1 | 50 | H-LP HI RH, H-LP HI LH, DRL |
25 | H-LP LO | 30 | H-LP LO RH, H-LP LO LH |
26 | LH J/B-B | 40 | Left-hand junction block |
27 | RH J/B-B | 40 | Right-hand junction block |
28 | VGRS | 40 | No circuit |
29 | OIL PMP | 60 | Oil pump |
30 | IGCT NO.5 | 7,5 | Power management system, shift position sensor |
31 | WIP-S | 7,5 | Windshield wipers, driver support system |
32 | WASH-S | 5 | Windshield washer, driver support system |
33 | COMB SW | 5 | Windshield wipers |
34 | DOME | 7,5 | Personal lights, ornament lights, trunk light, footwell lights, door courtesy lights, vanity lights, rear door inside handle illuminations, power trunk opener and closer |
35 | MPX-B | 10 | Body ECU, smart access system with pushbutton start, electric tilt and telescopic steering column, power seats, head-up display, front door ECU, gauges and meters, steering sensor, yaw rate and G sensor, overhead module, RR CTRL SW, power trunk opener and closer, clock, CAN gateway ECU |
36 | IGCT NO.4 | 10 | Power control unit |
37 | IGCT NO.3 | 7,5 | Hybrid battery (traction battery), DC/DC converter |
38 | IGCT NO.2 | 5 | Hybrid system |
39 | IG2 NO.1 | 5 | DCM, CAN gateway ECU |
40 | GAUGE | 5 | Gauges and meters |
41 | DC/DC | 150 | RH-J/B DC/DC, P/I DC/DC |
42 | P/I DC/DC | 100 | RR S/SHADE, DEFOG, FOG, TAIL, PANEL |
43 | RH J/B DC/DC | 80 | Right-hand junction block |
44 | LH J/B DC/DC | 50 | Left-hand junction block |
45 | H-LP CLN | 30 | Headlight cleaner |
46 | FAN NO.2 | 40 | Electric cooling fans |
47 | LUG J/B DC/DC | 80 | Luggage compartment junction block |
48 | FAN NO.1 | 80 | Electric cooling fans |
49 | PTC NO.1 | 50 | PTC heater |
50 | PTC NO.2 | 50 | PTC heater |
51 | HTR | 50 | Air conditioning system |
52 | ABS NO.1 | 30 | ECB |
53 | ECU-B NO.2 | 7,5 | No circuit |
54 | DEICER | 25 | Windshield wiper de-icer |
55 | ABS MAIN 3 | 10 | Brake system |
56 | FILTER | 10 | Condenser |
57 | A/C W/P | 7,5 | Air conditioning system |
58 | SPARE | 10 | Spare fuse |
59 | SPARE | 30 | Spare fuse |
60 | SPARE | 20 | Spare fuse |
*: Low beam and high beam are the same bulb. (vehicles with discharge headlights) |
Driver’s side instrument panel
![Lexus GS450h - fuse box - driver's side instrument panel` class=`size-medium wp-image-13403` height=`101` loading=`lazy` sizes=`(max-width: 300px) 100vw, 300px` src=`/uploads/542/439/b70/542439b70ec33fac75c0ec76977095bd.jpg` srcset=`/uploads/542/439/b70/542439b70ec33fac75c0ec76977095bd.jpg 300w, 701w` width=`300` />
<figcaption class=`wp-caption-text` id=`caption-attachment-13403`>Lexus GS450h – fuse box –<br />
driver’s side instrument panel</figcaption>
</figure>
<table class=`table table-hover table-bordered`>
<tbody>
<tr>
<td colspan=`2`>Fuse</td>
<td>Ampere rating [A]</td>
<td>Circuit protected</td>
</tr>
<tr>
<td>1</td>
<td>STOP</td>
<td>7,5</td>
<td>Stop lights, high mounted stoplight</td>
</tr>
<tr>
<td>2</td>
<td>P/W-B</td>
<td>5</td>
<td>Power window master switch</td>
</tr>
<tr>
<td>3</td>
<td>P/SEAT1 F/L</td>
<td>30</td>
<td>Power seats</td>
</tr>
<tr>
<td>4</td>
<td>D/L NO.1</td>
<td>25</td>
<td>Power door lock system</td>
</tr>
<tr>
<td>5</td>
<td>NV-IR</td>
<td>10</td>
<td>Lexus night view</td>
</tr>
<tr>
<td>6</td>
<td>FL S/HTR</td>
<td>10</td>
<td>Seat heaters/ventilators</td>
</tr>
<tr>
<td>7</td>
<td>WIPER</td>
<td>30</td>
<td>Windshield wipers</td>
</tr>
<tr>
<td>8</td>
<td>WIPER-IG</td>
<td>5</td>
<td>Windshield wipers</td>
</tr>
<tr>
<td>9</td>
<td>LH-IG</td>
<td>10</td>
<td>Seat belts, body ECU, AFS, overhead module, raindrop sensor, inside rear view mirror, lane camera sensor (LKA), head-up display, shift lock system, intuitive parking assist, front left-hand door ECU, driver monitor system, Remote Touch screen, electric tilt and telescopic steering column, power seats, moon roof, windshield wiper de-icer, intuitive parking assist switch, PTC heater, headlight cleaner</td>
</tr>
<tr>
<td>10</td>
<td>LH ECU-IG</td>
<td>10</td>
<td>VDIM, ECB, D-SW MODULE (Blind Spot Monitor, heated steering wheel), driver support system, AFS, EPB, air conditioning system</td>
</tr>
<tr>
<td>11</td>
<td>DOOR FL</td>
<td>30</td>
<td>Outside rear view mirror defoggers, power window (front left-hand)</td>
</tr>
<tr>
<td>12</td>
<td>CAPACITOR (HV)</td>
<td>10</td>
<td>Capacitor</td>
</tr>
<tr>
<td>13</td>
<td>STRG LOCK</td>
<td>15</td>
<td>Steering lock system</td>
</tr>
<tr>
<td>14</td>
<td>D/L NO.2</td>
<td>25</td>
<td>Power door lock system</td>
</tr>
<tr>
<td>15</td>
<td>DOOR RL</td>
<td>30</td>
<td>Power window (rear left-hand)</td>
</tr>
<tr>
<td>16</td>
<td>HAZ</td>
<td>15</td>
<td>Turn signal lights, emergency flashers</td>
</tr>
<tr>
<td>17</td>
<td>LH-IG2</td>
<td>10</td>
<td>Multiport fuel injection system/sequential multiport fuel injection system, stop lights, smart access system with push-button start, steering lock system, brake system, power management system</td>
</tr>
<tr>
<td>18</td>
<td>LH J/B-B</td>
<td>7,5</td>
<td>Body ECU</td>
</tr>
<tr>
<td>19</td>
<td>S/ROOF</td>
<td>20</td>
<td>Moon roof</td>
</tr>
<tr>
<td>20</td>
<td>P/SEAT2 F/L</td>
<td>25</td>
<td>Power seats</td>
</tr>
<tr>
<td>21</td>
<td>TI & TE</td>
<td>20</td>
<td>Electric tilt and telescopic steering column</td>
</tr>
<tr>
<td>22</td>
<td>A/C</td>
<td>7,5</td>
<td>Air conditioning system</td>
</tr>
</tbody>
</table>
<p> </p>
<h3>Passenger’s side instrument panel</h3>
<figure aria-describedby=`caption-attachment-13404` class=`wp-caption alignnone` id=`attachment_13404` style=`width: 300px`><img alt=`Lexus GS450h - fuse box -passenger's side instrument panel](/uploads/420/fad/ec4/420fadec4d5e52e86c8cde062f7e7599.jpg)
Fuse | Ampere rating [A] | Circuit protected | |
1 | P/SEAT1 F/R | 30 | Power seats |
2 | FR P/OUTLET | 15 | Power outlet (front) |
3 | RR P/OUTLET | 15 | Power outlet (rear) |
4 | P/SEAT2 F/R | 25 | Power seats |
5 | AVS | 20 | AVS |
6 | STRG HTR | 15 | Heated steering wheel |
7 | WASH | 20 | Windshield washer |
8 | RH ECU-IG | 10 | Navigation system, pre-collision seat belts, air conditioning system, ECB, Lexus night view, yaw rate and G sensor |
9 | RH-IG | 10 | Tension reducer, seat heater/ventilator switches, front right-hand door ECU, CAN gateway ECU, tire pressure warning system, power seats |
10 | DOOR FR | 30 | Front right-hand door control system (outside rear view mirror defoggers, power window |
11 | DOOR RR | 30 | Power window (rear right-hand) |
12 | RAD NO.2 | 30 | Audio system |
13 | AM2 | 7,5 | Power management system |
14 | MULTIMEDIA | 10 | Navigation system, Remote Touch |
15 | RAD NO.1 | 30 | Audio system |
16 | AIR BAG | 10 | SRS airbag system, occupant classification system |
17 | OBD | 7,5 | On-board diagnosis system |
18 | ACC | 7,5 | Body ECU, head-up display, RR CTRL, navigation system, hybrid transmission, Remote Touch, DCM, Remote Touch screen, clock |
Trunk

trunk
Fuse | Ampere rating [A] | Circuit protected | |
1 | PSB | 30 | Pre-collision seat belts |
2 | PTL | 25 | Power trunk opener and closer |
3 | RR J/B-B | 10 | Smart access system with push-button start |
4 | RR S/HTR | 20 | Seat heaters (rear) |
5 | FR S/HTR | 10 | Seat heaters/ventilators (front) |
6 | RR FOG | 10 | No circuit |
7 | DC/DC-S (HV) | 7,5 | DC/DC converter |
8 | BATT FAN (HV) | 20 | Hybrid battery (traction battery) cooling fan system |
9 | SECURITY | 7,5 | SECURITY |
10 | ECU-B NO.3 | 7,5 | Parking brake |
11 | TRK OPN | 7,5 | Power trunk opener and closer |
12 | DCM (HV) | 7,5 | DCM |
13 | AC INV (HV) | 20 | Power outlet (120V AC) |
14 | RR-IG1 | 5 | Radar sensor, Blind Spot Monitor |
15 | RR ECU-IG | 10 | Power trunk opener and closer, parking brake, tension reducer (rear left-hand), RR CTRL SW, tire pressure warning system |
16 | EPS-IG | 5 | Electric power steering system |
17 | BACK UP | 7,5 | Back-up lights |
The upper part of the 12-volt battery*

the upper part of the 12 volt battery
Fuse | Ampere rating [A] | Circuit protected | |
1 | EPB | 30 | Parking brake |
2 | LUG-J/B BATT | 40 | Luggage compartment junction block |
3 | EPS | 80 | Electric power steering |
4 | ARS | 80 | No circuit |
5 | MAIN | 220 | Engine compartment junction block |
*: When one or more of the fuses in this unit are blown, the unit needs to be replaced as a whole. |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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