fuse SUBARU BRZ 2018 User Guide

400 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
Fuse layout and amperage ratings■ Engine compartment
FuseAmpereCircuit
1MIR HTR 7.5 A Outside rear view mirror defoggers
2RDI 25 A Electric cooling fan
3(PUSH-AT) 7.5 A Engine control unit
4ABS NO. 1 40 A ABS
5HEATER 50 A Air conditioning system
6WASHER 10 A Windshield washer
7WIPER 30 A Windshield wipers
8RR DEF 30 A Rear window defogger
9(RR FOG) 10 A
10D FR DOOR 25 A Power window (driver’s side)
11(CDS) 25 A Electric cooling fan
12D-OP 25 A
13ABS NO. 2 25 A ABS
14D FL DOOR 25 A Power window (passenger’s side)
15SPARE See note. Spare fuse

401
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
16SPARE See note. Spare fuse
17SPARE See note. Spare fuse
18SPARE See note. Spare fuse
19SPARE See note. Spare fuse
20SPARE See note. Spare fuse
21ST 7.5 A Starting system
22ALT-S 7.5 A

23(STR LOCK) 7.5 A Steering lock system
24D/L 20 A Power door lock
25ETCS 15 A Engine control unit
26(AT+B) 7.5 A Transmission
27(AM2 NO. 2) 7.5 AKeyless access with push button
start system
28EFI (CTRL) 15 A Engine control unit
29EFI (HTR) 15 AMultiport fuel injection system/
sequential multiport fuel injection
system
30EFI (IGN) 15 A Starting system
31EFI (+B) 7.5 A Engine control unit
32HAZ 15 A
Turn signal lights, hazard warning
flashers
33MPX-B 7.5 AAutomatic air condi
tioning system,
gauge and meters
34F/PMP 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
35IG2 MAIN 30 A
SRS airbag system, engine control
unit
36DCC 30 AInterior light, remote keyless entry
system, main body ECU
FuseAmpereCircuit

402 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)Note
One of each of the following spare fuses are provided: 7.5 A, 10 A, 15
A, 20 A, 25 A, 30 A.
37HORN NO. 2 7.5 A Horn
38HORN NO. 1 7.5 A Horn
39H-LP LH LO 15 A Left-hand headlight (low beam)
40H-LP RH LO 15 A Right-
hand headlight (low beam)
41H-LP LH HI 10 A Left-hand headlight (high beam)
42H-LP RH HI 10 A Right-hand headlight (high beam)
43INJ 30 AMultiport fuel injection system/
sequential multiport fuel injection
system
44H-LP WASHER 30 A
45AM2 NO. 1 40 A Starting system, engine control unit
46EPS 80 A Electric power steering
47A/B MAIN 15 A SRS airbag system
48ECU-B 7.5 A
Remote keyless entry system,
main body ECU
49DOME 20 A Interior light
50IG2 7.5 A Engine control unit
FuseAmpereCircuit

403
4-3. Do-it-yourself maintenance
4
Maintenance and care
BRZ_U (A4450BE-A)
■
Instrument panel
FuseAmpereCircuit
1ECU ACC 10 A Main body ECU, outside rear view
mirrors
2P/POINT No.2 15 A Power outlet
3PANEL 10 A Illumination
4TAIL 10 A Tail lights
5DRL 10 A Daytime running light system
6UNIT IG1 10A
7STOP 7.5 A Stop lights
8OBD 7.5 A On-board diagnosis system
9HEATER-S 7.5 A Air conditioning system
10HEATER 10 A Air conditioning system
11FR FOG LH 10 A Left-hand front fog light
12FR FOG RH 10 A Right-hand front fog light
13BK/UP LP 7.5 A Back-up lights
14ECU IG1 10 A ABS, electric power steering
15AM1 7.5 A Starting system
16AMP 15 A Audio system
17AT UNIT 15 A Transmission
18GAUGE 7.5 AGauge and meters, keyless access
with push button start system
19ECU IG2 10 A Engine control unit
20SEAT HTR LH 10 A Left-hand seat heater
21SEAT HTR RH 10 A Right-hand seat heater
22RADIO 7.5 A Audio system
23P/POINT No.1 15 A Power outlet

404 4-3. Do-it-yourself maintenance
BRZ_U (A4450BE-A)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacement. ( →P. 405)
● If the replaced fuse blows again, have the vehicle inspected by your
SUBARU dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
WARNING
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any
other object in place of a fuse.
● Always use a genuine SUBARU fuse or equivalent.
● Do not modify the fuse or the fuse box.
CAUTION
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
SUBARU dealer.

5
When trouble arises
471
5-2. Steps to take in an emergency
BRZ_U (A4450BE-A)
If the engine will not start
If the engine will not start even though correct starting procedures
are being followed ( →P. 172, 182), consider each of the following
points.
■ The engine will not start even when the starter motor oper-
ates normally.
One of the following may be the cause of the problem.
●There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures. ( →P. 172, 182)
● There may be a malfunction in the engine immobilizer system.
(→ P. 82)
■ The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at
a low volume.
One of the following may be the cause of the problem.
●The battery may be discharged. ( →P. 480)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over. (vehicles with a key-
less access with push button start system)
The engine starting system may be malfunctioning due to an
electrical problem such as an open circuit or a blown fuse. How-
ever, an interim measure is available to start the engine.
(→ P. 472)

558 Alphabetical index
BRZ_U (A4450BE-A)
Front passenger's seatbelt reminder light......................... 432
Front seats Adjustment ..............................53
Front side marker light Replacing light bulbs ............. 405
Wattage.................................504
Front turn signal lights Switch.................................... 195
Fuel Capacity ................................ 495
Fuel gauge ............................ 199
Fuel pump shut off system ....427
Gas station information .........568
Information ............................ 505
Refueling .................................78
Fuel door.....................................78
Fuel filler lid ................................78
Fuel pump shut off system ..... 427
Fuses......................................... 397
Gauges ...................................... 199
Glove box.................................. 309
Hazard lights Switch.................................... 418
Hazard warning flashers Switch.................................... 418
Head restraints
Adjusting ................................58
Headlights Automatic headlight leveling................................ 237
Switch.................................... 233
Welcome lighting function .....236
Heaters Seat heaters.......................... 318
Side mirror............................. 302
Hill start assist ......................... 264
Horn...........................................198 I/M test ...................................... 354
Identification
Engine................................... 493
Vehicle .................................. 493
Ignition switch.................. 172, 182
Ignition switch light Ignition switch light ................ 306
Illuminated entry system......... 306
Immobilizer system ................... 82
Indicator lights ......................... 203
Inside rear view mirror .............. 69
Interior light Interior light ........................... 307
Switch ................................... 307
Wattage................................. 504
Jack Vehicle-equipped jack ..................................... 457
Jack handle .............................. 457
Jam protection function Power windows ....................... 75
Keyless access with push button start system Antenna location ..................... 27
“Keyless access” entry function ................................. 25
Starting the engine................ 172
Keyless entry ............................. 38
Keys Access key.............................. 22
Engine switch................ 172, 182
If you lose your keys ............. 475
If your access key battery is discharged .......... 476
Key number............................. 22
Keyless entry .......................... 38
Keys ........................................ 22
Mechanical key ....................... 23
Transmitter.............................. 38
G
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560 Alphabetical index
BRZ_U (A4450BE-A)
Paddle shift levers ................... 188
Parking brake ........................... 197
Parking lightsSwitch.................................... 233
Power outlets ........................... 316
Power windows ..........................74
Radiator .................................... 366
Rear seats ...................................56
Rear side marker lights Switch.................................... 233
Rear turn signal lights Switch.................................... 195
Rear view camera..................... 248
Rear view mirror Inside rear view mirror.............69
Outside rear view mirrors ........71
Rear window defogger ............ 302
Replacing Fuses .................................... 397
Key battery ............................ 392
Light bulbs............................. 405
Tires ...................................... 457
Reporting safety defects
for U.S. owners ...................... 529
REV indicator ........................... 161 Seat heaters ............................. 318
Seatbelts
Adjusting the seatbelt.............. 60
Automatic Locking Retractor (ALR) .................... 62
Child restraint system
installation........................... 145
Cleaning and maintaining the seatbelts ....................... 343
Emergency Locking Retractor (ELR) .................... 62
How to wear your seatbelt ...... 60
How your child should
wear the seatbelt .................. 62
Pregnant women, proper seatbelt use ............... 64
Reminder light ....................... 432
Seatbelt guide ......................... 61
Seatbelt pretensioners ............ 61
Seating capacity ...................... 276
Seats Adjustment .............................. 53
Adjustment precautions .......... 54
Child seats/child restraint system installation .............. 145
Cleaning................................ 342
Head restraint ......................... 58
Properly sitting in the seat....... 91
Seat heaters.......................... 318
Service reminder indicators .............................. 203P
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