TOYOTA xB 2012 Owners Manual (in English)

261
4-3. Do-it-yourself maintenance
4
Maintenance and care
Scion_xB_U_(OM12F39U)
25 IG2
15 AIGN, METER, IG2 NO.2
26 IG2 NO.27.5 A Starting system
27 EFI NO.2 10 AAir conditioning system, rear O2
sensor, front air flow sensor
28 EFI NO.1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system, air flow meter
29 H-LP RH HI 10 A Right hand headlight (high beam)
30 H-LP LH HI 10 A Left hand headlight (high beam)
31 H-LP RH LO 15 A Right hand headlight (low beam)
32 H-LP LH LO 15 A Left hand headlight (low beam)
FuseAmpereCircuit

262 4-3. Do-it-yourself maintenance
Scion_xB_U_(OM12F39U)
■Under the driver’s side instrument panel
FuseAmpereCircuit
1 TAIL 10 A Parking lights, tail lights, side
marker lights, gauges and meters,
license plate lights, multiport fuel
injection system/ sequential multi-
port fuel injection system
2 PANEL 7.5 A Instrument cluster lights, instru-
ment panel lights, gauges and
meters
3 FR DOOR 20 A Power windows
4 RL DOOR 20 A Power windows
5 RR DOOR 20 A Power windows
6 SUNROOF 20 A No circuit
7 CIG 15 A Cigarette lighter
8 ACC 7.5 A Outside rear view mirror switch,
shift lock control system, audio sys-
tem, body ECU

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4-3. Do-it-yourself maintenance
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Maintenance and care
Scion_xB_U_(OM12F39U)
9 MIR HTR
10 AMultiport fuel injection system/
sequential multiport fuel injection
system, outside rear view mirror
defoggers
10 IGN 7.5 AMultiport fuel injection system/
sequential multiport fuel injection
system, SRS airbag system, steer-
ing lock system
11 METER 7.5 A Gauges and meters
12 HTR-IG 10 A Air conditioning system
13 WIPER 25 A Windshield wipers
14 RR WIPER 15 A Rear window wiper
15 WASHER 15 A Washer
16 ECU-IG NO.1 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, electric power steering,
electric cooling fan, anti-lock brake
system, vehicle stability control
system, shift lock control system,
audio system, body ECU
17 ECU-IG NO.2 10 A Back-up light, emergency flasher,
air conditioning system, rear win-
dow defogger, charging system,
multiport fuel injection system/
sequential multiport fuel injection
system, front passenger’s seat belt
reminder light
FuseAmpereCircuit

264 4-3. Do-it-yourself maintenance
Scion_xB_U_(OM12F39U)
■Driver’s side instrument panel
18 OBD 7.5 A On-board diagnosis system
19 STOP 10 AStop lights, high mounted stop-
light, multiport fuel injection sys-
tem/ sequential multiport fuel
injection system, anti-lock brake
assist system, body ECU
20 DOOR 25 A Power door lock system, body ECU
21 ACC-B 25 A CIG, ACC
22 FR FOG 15 A No circuit
23 AM1 7.5 AStarting system, shift lock control
system
FuseAmpereCircuit
1 POWER 30 A Power windows
2 DEF 30 A Rear window defogger, MIR HTR
3 PWR SEAT 30 A No circuit
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
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Maintenance and care
Scion_xB_U_(OM12F39U)
■
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. 266)
● If the replaced fuse blows again, have the vehicle inspected by your
Scion dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■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 that indicated, or use
any other object in place of a fuse.
● Always use a genuine Scion fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
● Do not modify the fuse or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your Scion
dealer, as soon as possible.

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4-3. Do-it-yourself maintenance
Scion_xB_U_(OM12F39U)
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact your Scion dealer.
For more information about replacing other light bulbs, contact your
Scion dealer.
■ Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. ( P. 339)
■ Front bulb locations
Parking light
Daytime running lights
(if equipped) and head- light high beam
Headlight low beam Front side
marker light
Front turn signal light

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4-3. Do-it-yourself maintenance
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Maintenance and care
Scion_xB_U_(OM12F39U)
■
Rear bulb locations
Stop/tail and rear side marker light
License plate
lights
Rear turn signal light
Back-up light

268 4-3. Do-it-yourself maintenance
Scion_xB_U_(OM12F39U)
Replacing light bulbs■ Headlight low beams
Turn the bulb base counterclock-
wise.
Unplug the bulb while depress-
ing the lock release.
STEP 1
STEP 2

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4-3. Do-it-yourself maintenance
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Maintenance and care
Scion_xB_U_(OM12F39U)
■
Daytime running lights (if e quipped) and headlight high
beams
Turn the bulb base counterclock-
wise.
Unplug the bulb while depress-
ing the lock release.
STEP 1
STEP 2

270 4-3. Do-it-yourself maintenance
Scion_xB_U_(OM12F39U)
■Front turn signal lights
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP 1
STEP 2