2011 Lexus CT200h audio

524
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
Fuse layout and amperage ratings
Engine compartment
FuseAmpereCircuit
1DC/DC125 AInverter and converter
2HTR50 AAir conditioning system
3RDI30 AElectric cooling fans
4CDS30 AElectric cooling fans
5RAD NO.115 AAudio system, navigation system
6S-HORN10 ANavigation system
7ENG W/P30 ACooling system
8ABS MAIN
NO.27.5 AElectronically controlled brake
system
9H-LP CLN30 AHeadlight cleaner
10P CON MTR30 AP position control system

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

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

532
4-3. Do-it-yourself maintenance
CT200h_EE (OM76041E)
29RAD NO.27.5 A
Audio system, Lexus parking
assist monitor, navigation system,
overhead module
30PWR OUTLET15 APower outlet
31ECU-ACC10 AAir conditioning system, outside
rear view mirror switches
32PWR OUTLET215 ANo circuit
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. 534)
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 a circuit
The fuses are designed to blow, protecting the wiring harness from damage.
When replacing light bulbs
Lexus recommends that you use genuine Lexus products designed for this
vehicle. Because certain bulbs are connected to circuits designed to prevent
overload, non-genuine parts or parts not designed for this vehicle may be
unusable.
FuseAmpereCircuit

5
623
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is
off.
Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic.
When the 12-volt battery is removed or discharged
The hybrid system may not start. (P. 499)
If the 12-volt battery discharges while the shift position is in P, it may not
be possible to shift the shift position to other positions. In this case, the
vehicle cannot be towed without lifting both front wheels because the
front wheels will be locked. (P. 551)
When the 12-volt battery is reconnected, start the hybrid system and
confirm that the shift position can be changed to each position using the
shift position indicator.
Charging the 12-volt battery
The electricity stored in the 12-volt battery will discharge gradually even
when the vehicle is not in use, due to natural discharge and the draining
effects of certain electrical appliances. If the vehicle is left for a long time,
the 12-volt battery may discharge, and the hybrid system may be unable to
start. (The 12-volt battery recharges automatically while the hybrid system
is operating.)

Index
677
CT200h_EE (OM76041E)
Abbreviation list ....................... 678
Alphabetical index.................... 680
What to do if... ......................... 692
For vehicles with a navigation system, refer to the
“Navigation System Owner’s Manual” for informa-
tion regarding the equipment listed below.
• Navigation system
• Audio/video system
• Air conditioning
• Rear window and outside rear view mirror defogging
• Windshield wiper de-icer
• Climate control
• Lexus parking assist monitor

678
CT200h_EE (OM76041E)
Abbreviation list
Abbreviation/Acronym list
ABBREVIA-
TIONSMEANING
A/CAir Conditioning
ABSAnti-lock Brake System
ASLAutomatic Sound Levelizer
CRSChild Restraint System
DABDigital Audio Broadcast
DISPDisplay
ECOEconomy/Ecology
ECUElectronic Control Unit
EFIElectronic Fuel Injection
ELREmergency Locking Retractor
EONEnhanced Other Network
EPSElectric Power Steering
EVElectric Vehicle
LEDLight Emitting Diode
OBDOn Board Diagnostics
PCSPre-Crash Safety system
PWRPower
RDSRadio Data System
SRSSupplemental Restraint System

680
CT200h_EE (OM76041E)
Alphabetical index
Alphabetical index
A/C
Air conditioning filter ...........511
Automatic air conditioning
system
*..............................312
ABS ...........................................285
Air conditioning filter ...............511
Air conditioning system
*
Air conditioning filter ...........511
Automatic air conditioning
system.................................312
Airbags
Airbag manual on-off system .....
160
Airbag operating
conditions ...........................151
Airbag precautions for your
child....................................155
Airbag warning light ............560
Curtain shield airbag operating
conditions ...........................151
Curtain shield airbag
precautions .........................155
General airbag precautions ...155
Locations of airbags .............148
Modification and disposal of
airbags ................................159
Proper driving posture ..........146
Side airbag operating
conditions ...........................151
Side airbag precautions.........155
Side and curtain shield airbags
operating conditions ...........151
Side and curtain shield airbags
precautions .........................155
SRS airbags ..........................148Alarm ........................................ 138
Antenna .................................... 334
Anti-lock brake system............. 285
Audio input ............................... 376
Audio remote control
switches
*
Audio system
Antenna................................ 334
Audio input .......................... 376
AUX port ............................. 376
CD player/changer ............... 335
MP3/WMA disc................... 344
Optimal use .......................... 373
Portable music player .......... 376
Radio.................................... 329
Steering wheel audio switches...
377
Audio/video system
*
Automatic air conditioning system
Air conditioning filter .......... 511
Air conditioning system....... 312
Automatic air conditioning
system................................ 312
Automatic headlight leveling
system .................................... 235
Automatic light control system 232
AUX port .................................. 376
Auxiliary box.................... 446, 460
A