2012 Lexus IS250 fuel

441
4-3. Do-it-yourself maintenance
4
Maintenance and care
28E/G-AM60 AH-LP CLN, FR CTRL AM, A/C
COMP DEICER
29LH J/B-AM80 A
S/ROOF, FR P/SEAT LH, TV NO.1,
A/C, FUEL OPEN, PSB, FR WIP,
H-LP LVL, LH-IG, ECU-IG LH,
PANEL, TAIL, TV NO.2, MIR HTR,
FR S/HTR LH
FuseAmpereCircuit

442
4-3. Do-it-yourself maintenance
■Engine compartment (type B fuse box)
FuseAmpereCircuit
1SPARE30 ASpare fuse
2SPARE25 ASpare fuse
3SPARE10 ASpare fuse
4FR CTRL-B25 AH-LP UPR, HORN
5A/F15 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
6ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
7ALT-S7. 5 ACharging system
8TEL10 ATEL
9STR LOCK25 ASteering lock
10H-LP CLN30 AHeadlight cleaner
11A/C COMP7. 5 AAir conditioning system
12DEICER25 AWindshield wiper de-icer

443
4-3. Do-it-yourself maintenance
4
Maintenance and care
13FR CTRL-AM30 AFR TAIL, FR FOG, WASHER
14IG210 AIgnition system
15EFI NO.210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
16H-LP R LWR15 AHeadlight low beam (right)
17H-LP L LWR15 AHeadlight low beam (left)
18F/ P M P25 AFuel system
19EFI25 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, EFI NO.2
20INJ20 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
21H-LP UPR15 AHeadlight high beams
22HORN10 AHorns
23WA S H E R20 AWindshield washer
24FR TAIL10 AParking lights
25FR FOG15 AFront fog lights
FuseAmpereCircuit

444
4-3. Do-it-yourself maintenance
■Driver’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT LH30 APo w e r s e a t
2A/C7. 5 AAir conditioning system
3MIR HTR15 AOutside rear view mirror defoggers
4TV NO.110 ADisplay
5FUEL OPEN10 AFuel filler door opener
6TV NO.27. 5 A
7PSB30 A
8S/ROOF25 AMoon roof
9TA I L10 ATail lights, license plate lights, parking
lights
10PA N E L7. 5 ASwitch illumination, air conditioning
system, display, audio
11RR FOG7. 5 A
12ECU-IG LH10 A
Cruise control, air conditioning sys-
tem, power steering, rain sensor, anti-
glare inside rear view mirror, shift lock
system, moon roof, tire inflation pres-
sure warning system, VSC
13FR S/HTR LH15 ASeat heaters and ventilators

446
4-3. Do-it-yourself maintenance
■Passenger’s side instrument panel
FuseAmpereCircuit
1FR P/SEAT RH30 APo w e r s e a t
2DOOR DL15 A
3OBD7. 5 AOn-board diagnosis system
4STOP SW7. 5 A
Stop lights, multipor t fuel injection sys-
tem/sequential multip ort fuel injection
system, VDIM, shift lock system, high
mounted stop light
5TI & TE20 AElectric tilt and telescopic steering
column
6RAD NO.310 AAudio
7GAUGE7. 5 AMeter
8IGN10 A
SRS airbag system, steering lock sys-
tem, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, stop lights

When trouble arises5
461
5-1. Essential informationEmergency flashers............... 462
If your vehicle needs to be towed ...................................... 463
If you think something is wrong ...................................... 469
Fuel pump shut off system ..................................... 470 5-2. Steps to take in an
emergency
If a warning light turns on or a warning buzzer
sounds... ................................... 471
If a warning message is displayed................................. 481
If you have a flat tire............... 492
If the engine will not start ..... 501
If the shift lever cannot be shifted from P ....................... 503
If you lose your keys .............. 504
If the electronic key does not operate properly.......... 505
If the vehicle battery is discharged ............................. 510
If your vehicle overheats ...... 513
If the vehicle becomes stuck......................................... 516
If your vehicle has to be stopped in an
emergency ............................. 518

470
5-1. Essential information
Fuel pump shut off system
NOTICE
■Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been damaged
and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an airbag
inflates upon collision, the fuel pump shut off system stops supplying fuel to
the engine.
Follow the procedure below to rest art the engine after the system is
activated.
Turn the “ENGINE START STOP” switch to the ACCESSORY
mode or OFF.
Restart the engine.
STEP1
STEP2

5
When trouble arises
473
5-2. Steps to take in an emergency
Follow the correction procedures.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning light
Indicates a malfunction in:
•The ABS;
• The brake assist system.
Electric power steering system warning lightIndicates a malfunction in the EPS (Electric Power Steering)
system.
Slip indicatorIndicates a malfunction in:
• The VSC system;
•The TRAC system; or
• The hill-start assist control system
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed.
Check that all doors and the
trunk are closed.
Low fuel level warning lightRemaining fuel
(Approximately 2.9 gal. [11 L,
2.4 Imp. gal.] or less)
Refuel the vehicle.
(On the instru-ment cluster)
Driver’s seat belt reminder
light (warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.