2012 Lexus CT200h check engine

506
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Radiator and condenser
Check the radiator and condenser and clear away any foreign
objects.
If either of the above parts is extremely dirty or you are not sure of
their condition, have your vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped
professional.
CAUTION
When the hybrid system is hot
Do not touch the radiator or condenser as they may be hot and cause serious
injuries, such as burns.
When the electric cooling fans are operating
Do not touch the engine compartment.
The electric cooling fans may keep rotating for about 3 minutes even after
the “POWER” switch is off.
With the “POWER” switch in ON mode, the electric cooling fans may auto-
matically start to run if the air conditioning is on and/or the coolant tempera-
ture is high. Be sure the “POWER” switch is off when working near the
electric cooling fans or radiator grille.

532
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have
blown. If this happens, check and replace the fuses as necessary.
Turn the “POWER” switch off.
Open the fuse box cover.
Engine compartment
Push the tab in and lift the lid
off.
Left side instrument panel (left-hand drive vehicles)
Remove the lid.STEP1
STEP2

546
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
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. 664)
Removing the engine compartment covers
P. 497
Front bulb locations
Halogen headlights
Front turn signalHeadlight low
Headlight high Front fog light

5
635
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
Start the engine of the second vehicle. Increase the
engine speed slightly and maintain at that level for
approximately 5 minutes to recharge the battery of your
vehicle.
Open and close any of the doors of your vehicle with the
“POWER” switch off.
Maintain the engine speed of the second vehicle and start
the hybrid system of your vehicle by turning the
“POWER” switch to ON mode.
Make sure the “READY” indicator light comes on. If the
indicator light does not come on, contact any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
Once the hybrid system has started, remove the jumper
cables in the exact reverse order from which they were
connected.
To install the engine cover, conduct the removal proce-
dure in reverse. After installing, check that the fixed pins
are inserted securely.
Once the hybrid system starts, have the vehicle inspected at any
th i d L d l i th d l lifi dSTEP4
STEP5
STEP6
STEP7
STEP8
STEP9

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643
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
CAUTION
To prevent an accident or injury when inspecting under the hood of your
vehicle
If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot, caus-
ing serious injuries such as burns.
Check that the indicator on the “POWER” switch and the “READY” indi-
cator are off.
On hybrid vehicles, the gasoline engine may automatically start, or the
cooling fan may suddenly operate even if the gasoline engine stops. Do
not touch or approach rotating parts such as the fan, which may lead to
fingers or clothing (especially a tie, a scarf or a muffler) getting caught,
resulting in serious injury.
Do not loosen the coolant reservoir cap while the hybrid system and radi-
ator are hot.
Serious injury, such as burns, may result from hot coolant and steam
released under pressure.
NOTICE
When adding engine/power control unit coolant
Wait until the hybrid system has cooled down before adding engine/power
control unit coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot hybrid sys-
tem too quickly can cause damage to the hybrid system.
To prevent damage to the cooling system
Observe the following precautions:
Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
Do not use commercially available coolant additives.

654
6-1. Specifications
CT200h_OM_OM76067E_(EE)
Hybrid battery (traction battery)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when exchang-
ing. Warm up the engine and turn off the hybrid system, wait more than 5
minutes, and check the oil level on the dipstick
Ty p eNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity28 modules
Overall voltage201.6 V
Oil capacity
(Drain and refill
 reference
*)
With filter
Without filter
4.2 L (4.4 qt., 3.7 lmp.qt.)
3.9 L (4.1 qt., 3.4 lmp.qt.)

695
Alphabetical index
CT200h_OM_OM76067E_(EE)
Electric power steering ..............291
Electronic key
If the electronic key does not
operate properly .................630
Replacing battery ..................527
Emergency, in case of
If a warning buzzer sounds ...571
If a warning light turns on ....571
If a warning message is
displayed ............................578
If the electronic key does not
operate properly .................630
If the hybrid system will not
start .....................................627
If the 12-volt battery is
discharged ..........................633
If you have a flat tire ...599, 613
If you lose your keys ............629
If you think something is
wrong .................................570
If your vehicle becomes stuck ....
644
If your vehicle has to be stopped
in an emergency .................646
If your vehicle needs to be
towed ..................................563
If your vehicle overheats ......639
Emergency brake signal ............292
Emergency flashers ...................562Engine
Accessory mode................... 200
Compartment ....................... 496
Hood .................................... 492
How to start the hybrid
system................................ 198
Identification number .......... 651
If the hybrid system will not
start .................................... 627
Ignition switch ..................... 198
Overheating ......................... 639
“POWER” switch ................ 198
Engine compartment cover....... 497
Engine coolant
Capacity ............................... 657
Checking .............................. 503
Preparing and checking
before winter ..................... 311
Engine/power control unit coolant
Capacity ............................... 657
Checking .............................. 503
Preparing and checking
before winter ..................... 311E
*: For vehicles with a navigation system, refer to
the “Navigation System Owner’s Manual”.

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Alphabetical index
CT200h_OM_OM76067E_(EE)
Engine oil
Capacity ................................654
Checking ...............................498
Preparing and checking
before winter ......................311
EPS ............................................291
EV drive mode switch ...............204
Floor mat ...................................467
Fluid
Brake ....................................660
Washer ..................................507
Fog lights
Replacing light bulbs ............546
Switch ...................................239
Wattage .................................664
Footwell lights ...........................445
Front fog lights
Replacing light bulbs ............546
Switch ...................................239
Wattage .................................664
Front position lights
Switch ..................................235Front seats
Adjustment............................. 98
Driver’s seat position memory ..
102
Front turn signal lights
Replacing light bulbs ........... 546
Switch .................................. 216
Wattage ................................ 664
Fuel
Capacity ............................... 653
Fuel gauge............................ 219
Information .......................... 665
Refueling ............................. 131
Type ..................................... 665
Fuel door................................... 131
Fuel filler door .......................... 131
Fuses ......................................... 532
Gauges ...................................... 219
Glove box ................................. 449
Hands-free system
(for cellular phone)
* ............. 409
Head restraints
Adjustment .......................... 105
Headlight cleaner...................... 249
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