2014 LEXUS RX270 maintenance

508
4-3. Do-it-yourself maintenance
RX350/270_EE
12ABS NO. 150 AVehicle stability control
13EPS60 AElectric power steering system
14ALT140 A
IG1 MAIN, TOWING BATT,
DEICER, TOWING, STOP, RDI FAN
NO. 1, FILTER, RR DEF, AIR SUS,
HEATER, ABS NO. 2, H-LP CLN,
PBD, ECU-IG1 NO. 1, ECU-IG1 NO.
3, GAUGE NO. 1, ECU-IG1 NO. 2,
E P S , F R W I P, R R W I P, F R WA S H , R R
WASH, RH S-HTR, LH S-HTR, TAIL,
PANEL, D/L ALT B, FR FOG, FR
DOOR, FL DOOR, RR DOOR, RL
DOOR, PSB, P-SEAT LH, P-SEAT
RH, TI&TE, FUEL OPN, DR LOCK,
OBD, RR FOG, S/ROOF, 4WD,
INVERTER, ECU-ACC, P/POINT,
CIG, RADIO NO. 2
15AMP130 AAudio system
16EFI MAIN30 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, electronic controlled transmis-
sion, EFI NO. 1, EFI NO. 2, F/PMP
17AMP230 AAudio system
18IG2 MAIN30 AIGN, GAUGE NO. 2, ECU IG 2
19IP J/B25 APow e r d o o r l o c k s y s t e m
20STR LOCK20 AStarter system
21RAD NO. 315 AMeters and gauges, navigation sys-
tem, audio system
22HAZ15 AEmergency flashers
FuseAmpereCircuit
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509
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
23ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
24RAD NO. 110 AAudio system, navigation system
25AM27. 5 AStarter system
26ECU-B NO. 27. 5 A
Air conditioning system, audio system,
vehicle stability control system, power
windows
27MAYDAY/TEL7. 5 AMAYDAY/TEL
28IMMOBI7. 5 AIMMOBI
29ALT-S7. 5 ACharging system
30DRL7. 5 ADaytime running light system
31IGN10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
32DOME10 A
Vanity mirror lights, luggage compart-
ment lights, interior lights, personal
lights, door courtesy lights, footwell
lights, scuff lights
33ECU-B NO. 110 A
Tilt and telescopic steering, multiplex
communication system, meters and
gauges, driving position memory,
power seats, power back door, head-
up display, outside rear view mirror,
steering sensor
34EFI NO. 110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, electronic controlled transmis-
sion
FuseAmpereCircuit
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510
4-3. Do-it-yourself maintenance
RX350/270_EE
35A/F*110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
WIP-S*27. 5 ACruise control
36ECU-IG1 NO. 410 A
Adaptive front-lighting system, air
conditioning system, rear window
defogger, vehicle stability control sys-
tem, electric cooling fans
37BK/UP LP7. 5 ABack-up lights
38ECU-IG1 NO. 515 AAir conditioning system
39ECU-IG1 NO. 610 A
Adaptive front-lighting system, head
light cleaner, cruise control, electroni-
cally modulated air suspension, vehi-
cle stability control, air conditioning
system
40EFI NO. 210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
41F/ P M P*215 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
42DEICER25 AWindshield wipers and washer
43STOP7. 5 A
Vehicle stability control, vehicle
dynamics integrated management,
stop lights, electronic controlled
transmission, multiport fuel injection
system/sequential multiport fuel injec-
tion system, shift lock control system,
starter system
44TOW IN G BAT T20 ATr a i l e r b a t t e r y
FuseAmpereCircuit
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511
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
*1:RX270
*2:RX350
45TOW IN G30 ATr a i l e r l i g h t s
46FILTER10 A
47IG1 MAIN30 AECU-IG1 NO. 6, BK/UP LP, ECU-
IG1 NO. 5, ECU-IG1 NO. 4
48H-LP RH HI15 ARight-hand headlight (high beam)
49H-LP LH HI15 ALeft-hand headlight (high beam)
50BIXENON10 A
51H-LP RH LO15 ARight-hand headlight (low beam),
manual headlight leveling system
52H-LP LH LO15 ALeft-hand headlight (low beam)
53HORN10 AHorn
54
EFI MAIN
NO. 2
*120 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
A/F*2
55S-HORN7. 5 AS-HORN
FuseAmpereCircuit
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512
4-3. Do-it-yourself maintenance
RX350/270_EE■Driver’s side instrument panel
FuseAmpereCircuit
1P/ P O I N T15 APow e r o u t l e t
2ECU-ACC10 A
Navigation system, air conditioning
system, audio system, multiplex com-
munication system, multi-information
display, head-up display
3CIG15 APow e r o u t l e t
4RADIO NO. 27. 5 AAudio system, navigation system
5GAUGE NO. 110 A
Emergency flashers, navigation sys-
tem, head-up display, air conditioning
system, charging system
6ECU-IG1 NO. 310 A
Outside rear view mirror, windshield
wipers and washer, seat heaters,
moon roof, air conditioning system
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513
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
7ECU-IG1 NO. 110 A
Multiplex communication system,
steering sensor, shift lock control sys-
tem, tilt and telescopic steering, auto-
matic transmission system, power
back door, pre-crash safety system,
vehicle stability control system, tire
pressure warning system
8S/ROOF30 AMoon roof
9FUEL OPN7. 5 AFuel filler door opener
10PSB30 APre-crash seat belt
11TI & TE30 ATilt and telescopic steering system
12DR LOCK10 ADR LOCK
13FR FOG7. 5 AFront fog lights
14P- S E AT L H30 APower seat (left-side)
154WD7. 5 AAW D s y s t e m
16INVERTER20 A
17RR FOG7. 5 ARear fog lights
18D/L ALT B25 A
Multiplex communication system,
power door lock system, power back
door
19EPS10 AElectric power steering system
20ECU-IG1 NO. 210 ALexus parking assist-sensor, AWD
system, pre-crash seat belt
FuseAmpereCircuit
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514
4-3. Do-it-yourself maintenance
RX350/270_EE
21PA N E L10 A
Switch illumination, navigation system,
electronically modulated air suspen-
sion, automatic transmission system,
audio system, multi-information dis-
play, air conditioning system, multiplex
communication system
22TA I L10 A
Front position lights, tail lights, license
plate lights, front fog lights, towing
converter, rear fog lights
23AIR SUS20 AElectronically modulated air suspen-
sion
24P- S E AT R H30 APower seat right side
25OBD7. 5 AOn-Board diagnosis
26FR DOOR25 AFront power window (right-side), out-
side rear view mirror
27RR DOOR25 ARear power window (right-side)
28FL DOOR25 AFront power window (left-side), out-
side rear view mirror
29RL DOOR25 ARear power window (left-side)
30FR WASH25 AWindshield wipers and washer
31RR WIP15 AWindshield wipers and washer
32RR WASH20 AWindshield wipers and washer
33FR WIP30 AWindshield wipers and washer
34ECU IG210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, SRS airbag system, stop lights,
electronic controlled transmission,
steering lock system
FuseAmpereCircuit
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515
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
35GAUGE NO. 27. 5 AGauge and meters
36RH S-HTR15 ASeat heater (right-side)
37LH S-HTR15 ASeat heater (left-side)
■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. 5 1 6 )
●If the replaced fuse blows again, have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■If there is an overload in the circuit
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 indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus 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 fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as
soon as possible.
FuseAmpereCircuit
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