2015 SUBARU BRZ Keyless start

330
4-3. Do-it-yourself maintenance
Transmitter/access key batter y
Replace the battery with a new one if it is depleted.
■You will need the following items: ●Flathead screwdriver
● Lithium battery CR2016 (vehicles without a keyless access
with push button start system), or CR2032 (vehicles with a
keyless access with push button start system)
■Replacing the battery (vehicles without a keyless access
with push button start system)
Remove the cover.
To prevent damage to the key,
cover the tip of the screwdriver
with a rag.
To prevent the buttons from
being disassembled, face the
button surface downward.
Remove the module.
STEP1
STEP2

331
4-3. Do-it-yourself maintenance
4
Maintenance and care
Open the case cover using a
coin protected with tape and
remove the depleted battery.Insert a new battery with the
“+” terminal facing up.
■Replacing the battery (vehicles with a keyless access with
push button start system) Take out the mechanical key.
Insert the tip of a flathead
screwdriver into the groove
and remove the cover.
To prevent damage to the key,
wrap the tip of the screwdriver
with protective tape.
STEP3
STEP1
STEP2Groove

333
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Use a CR2016 (vehicles without a keyless access with push button
start system) or CR2032 (vehicles with a keyless access with push but-
ton start system) lithium battery
●Batteries can be purchased at your SUBARU dealer, local electrical
appliance shops or camera stores.
●Replace only with the same or equivalent type recommended by the
manufacturer.
●Dispose of used batteries according to local laws.
■If the key battery is depleted
The following symptoms may occur:
●The keyless access with push button start system (if equipped) and
remote keyless entry system will not function properly.
●The operational range will be reduced.
■When putting the module back (vehicles without a keyless access with
push button start system)
WARNING
■Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Insert the module from directly above.
Inserting it on an angle may prevent the
key buttons from operating properly.

335
4-3. Do-it-yourself maintenance
4
Maintenance and care
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.Vehicles without a keyless access with push button
start system
Turn the engine switch off.
Vehicles with a keyless access with push button start
system
Turn the push-button ignition switch off.
Open the fuse box cover.
Engine compartment Push the tabs in and lift the lid
off.
Instrument panel Remove the lid.
STEP 1
STEP 2

339
4-3. Do-it-yourself maintenance
4
Maintenance and care
16SPARE See note. Spare fuse
17 SPARE See note. Spare fuse
18 SPARE See note. Spare fuse
19 SPARE See note. Spare fuse
20 SPARE See note. Spare fuse
21 ST 7.5 A Starting system
22 ALT-S 7.5 A Charging system
23 (STR LOCK) 7.5 A Steering lock system
24 D/L 20 A Power door lock
25 ETCS 15 A Engine control unit
26 (AT+B) 7.5 A Transmission
27 (AM2 NO. 2) 7.5 A Keyless access with push button
start system
28 EFI (CTRL) 15 A Engine control unit
29 EFI (HTR) 15 A Multiport fuel injection system/
sequential multiport fuel injection
system
30 EFI (IGN) 15 A Starting system
31 EFI (+B) 7.5 A Engine control unit
32 HAZ 15 A Turn signal lights, hazard warning
flashers
33 MPX-B 7.5 A Automatic air condi
tioning system,
gauge and meters
34 F/PMP 20 A Multiport fuel injection system/
sequential multiport fuel injection
system
35 IG2 MAIN 30 A SRS airbag system, engine control unit
36 DCC 30 A Interior light, remote keyless entry
system, main body ECU
FuseAmpereCircuit

340
4-3. Do-it-yourself maintenance
Note
One of each of the following spare fuses are provided: 7.5 A, 10 A, 15
A, 20 A, 25 A, 30 A.37
HORN NO. 2 7.5 A Horn
38 HORN NO. 1 7.5 A Horn
39 H-LP LH LO 15 A Left-hand headlight (low beam)
40 H-LP RH LO 15 A Right- hand headlight (low beam)
41 H-LP LH HI 10 A Left-hand headlight (high beam)
42 H-LP RH HI 10 A Right-hand headlight (high beam)
43 INJ 30 A Multiport fuel injection system/
sequential multiport fuel injection
system
44 H-LP WASHER 30 A 
45 AM2 NO. 1 40 A Starting system, engine control unit
46 EPS 80 A Electric power steering
47 A/B MAIN 15 A SRS airbag system
48 ECU-B 7.5 A Remote keyless entry system,
main body ECU
49 DOME 20 A Interior light
50 IG2 7.5 A Engine control unit
FuseAmpereCircuit

341
4-3. Do-it-yourself maintenance
4
Maintenance and care
■Instrument panel
FuseAmpereCircuit
1 ECU ACC 10 A Main body ECU, outside rear view
mirrors
2 P/POINT No.2 15 A Power outlet
3 PANEL 10 A Illumination
4 TAIL 10 A Tail lights
5 DRL 10 A Daytime running light system
6 STOP 7.5 A Stop lights
7 OBD 7.5 A On-board diagnosis system
8 HEATER-S 7.5 A Air conditioning system
9 HEATER 10 A Air conditioning system
10 FR FOG LH 10 A Left-hand front fog light
11 FR FOG RH 10 A Right-hand front fog light
12 BK/UP LP 7.5 A Back-up lights
13 ECU IG1 10 A ABS, electric power steering
14 AM1 7.5 A Starting system
15 AMP 15 A 
16 AT UNIT 15 A Transmission
17 GAUGE 7.5 A Gauge and meters, keyless access
with push button start system
18 ECU IG2 10 A Engine control unit
19 SEAT HTR LH 10 A Left-hand seat heater
20 SEAT HTR RH 10 A Right-hand seat heater
21 RADIO 7.5 A 
22 P/POINT No.1 15 A Power outlet

362
5-1. Essential information
■Before emergency towingRelease the parking brake.
Shift the select lever to N (vehicles with an automatic transmission)
or shift lever to neutral (vehicles with a manual transmission).
Vehicles without a keyless access with push button start system:
Turn the engine switch to the “A CC” (engine off) or “ON” (engine
running) position.
Vehicles with a keyless access with push button start system: Turn
the push-button ignition switch to “ACC” (engine off) or “ON”
(engine running) mode.
■If towing a vehicle
Do not tow another vehicle. If towing a vehicle that has broken down is
unavoidable, avoid towing a vehicle that is heavier than your vehicle. Also,
do not pull out a vehicle that has fallen into a ditch.
WARNING
■Caution while towing
●Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
●If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
STEP 1
STEP 2
STEP 3