Page 525 of 696
525
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_EE (OM76041E)
11AMP NO.230 AAudio system
12ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection
system
13IGCT30 APCU, IGCT NO.2, IGCT NO.3
14DC/DC-S5 AInverter and converter
15P CON MAIN7.5 AP position control system, P posi-
tion switch
16AM27.5 APower management system
17ECU-B27.5 ASmart entry & start system
18MAYDAY10 ANo circuit
19ECU-B310 AAir conditioning system
20TURN & HAZ10 ATurn signal lights, emergency
flashers
21AMP NO.130 AAudio system
22ABS MAIN
NO.120 AElectronically controlled brake
system
23P/I 240 A
P position control system, horn,
headlights (low beam), back-up
light
24ABS MTR 130 AElectronically controlled brake
system
25ABS MTR 230 AElectronically controlled brake
system
26H-LP HI MAIN20 AH-LP RH HI, H-LP LH HI
FuseAmpereCircuit
Page 526 of 696
526
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
27DRL7.5 ADaytime running light system
28DOOR NO.225 APower door lock system
29P/I 160 AIG2, EFI MAIN, BATT FAN
30EPS60 AElectric power steering system
31PCU10 AHybrid system
32IGCT NO.210 A
Hybrid system, P position control
system, power management sys-
tem
33IGCT NO.310 ACooling system
34DOME10 A
Luggage compartment light, over-
head module, interior lights, per-
sonal lights, vanity lights, footwell
lights
35ECU-B7.5 A
Smart entry & start system, gauges
and meters, outside rear view mir-
rors, air conditioning system, driv-
ing position memory system,
electric power steering system,
clock
36H-LP LH HI10 ALeft-hand headlight (high beam)
37H-LP RH HI10 ARight-hand headlight (high beam)
FuseAmpereCircuit
Page 528 of 696
528
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)Left side instrument panel
FuseAmpereCircuit
1TA I L10 A
Rear fog light, manual headlight
leveling dial, headlights (high
beam), stop/tail lights, license
plate lights, front position lights
Page 529 of 696
529
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_EE (OM76041E)
2PANEL10 A
Audio system, Lexus parking
assist-sensor switch, windshield
wiper de-icer switch, navigation
system, fuel filler door opener,
glove box light, headlight cleaner
switch, emergency flasher switch,
manual headlight leveling dial, air
conditioning system, outside rear
view mirrors, driving mode select
switches, P position switch, instru-
ment panel light control dial, shift
position indicators, seat heater
switches, heated steering wheel
switch, pre-crash braking off
switch
3IGN10 A
Electronically controlled brake
system, smart entry & start system,
multiport fuel injection system/
sequential multiport fuel injection
system, stop/tail lights, SRS air-
bags
4MET7.5 AGauges and meters
FuseAmpereCircuit
Page 530 of 696
530
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
5WIP30 AWindshield wipers
6RR WIP20 ARear window wiper and washer
7WASHER15 AWindshield washer
8A/C10 AAir conditioning system
9GAUGE10 A
Windshield wiper de-icer switch,
automatic headlight leveling sys-
tem
10ECU-IG NO.210 A
Windshield wipers, Lexus parking
assist monitor, Lexus parking
assist-sensor, electronically con-
trolled brake system, navigation
system, electric power steering
system, turn signal lights, emer-
gency flashers, yaw rate and G
sensor, headlight cleaner, outside
rear view mirrors, driving mode
select switches, overhead module,
pre-crash seat belts, seat heater
switches, heated steering wheel
switch, dynamic radar cruise con-
trol
11ECU-IG NO.110 ANo circuit
12S/ROOF30 AMoon roof
FuseAmpereCircuit
Page 534 of 696
534
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
Light bulbs
You may replace the following bulbs by yourself. The difficulty level
of replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perform, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional.
For more information about replacing other light bulbs, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Preparing for light bulb replacement
Check the wattage of the light bulb to be replaced. (P. 652)
Removing the engine compartment covers
P. 486
Front bulb locations
Halogen headlights
Front turn signalHeadlight low
Headlight high Front fog light
Page 535 of 696
535
4-3. Do-it-yourself maintenance
4
Maintenance and care
CT200h_EE (OM76041E)
LED headlights
Rear bulb locations
Headlight high
Front turn signal Front fog light
Rear turn signal
Rear fog light
(left-hand drive
vehicles) or back-upRear fog light (right-hand
drive vehicles) or back-up
License
plate
Page 536 of 696
536
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
Replacing light bulbs
Headlight low beams (halogen headlights)
For the right side only: Remove
the securing clips and unclip
the engine coolant reservoir
hose. Then lift up the air
cleaner inlet duct.
Unplug the connector while
pressing the lock release.
STEP1
STEP2