sensor Lexus GS250 2014 Repair Manual

501 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
16MPX-B10
Smart entry & start system, CAN gateway
ECU, electric tilt and telescopic steering col-
umn, power seats, head-up display, front
right-hand door ECU, gauges and meters,
steering sensor, yaw rate and G sensor, over-
head module, RR CTRL SW, clock, front left-
hand door ECU, power trunk lid, body ECU
17FILTER10Condenser
18A/C COMP7. 5Air conditioning system
19H-LP CLN30Headlight cleaner
20FAN NO.240Electric cooling fans
21LH J/B ALT60Left-hand junction block
22FAN NO.180Electric cooling fans
23P/ I - B N O.150H-LP HI RH, H-LP HI LH, DRL, emergency
brake signal
24EPB30Pa r k in g b ra ke
25LUG J/B-B40Luggage compartment junction block
26R/B-B20EPS-B, TV
27HORN10Horn
28ETCS10Multiport fuel injection system/sequential
multiport fuel injection system
29ALT-S7. 5Charging system
30ECU-B7. 5Smart entry & start system
31DCM7. 5DCM
32D/C C UT30DOME, MPX-B
33ABS NO.250VDIM
34ST30Starting system
35H-LP LO30Headlights, H-LP RLY
FuseAmpereCircuit
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5046-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
■Left side instrument panel
XLeft-hand drive vehicles
FuseAmpereCircuit
1STOP7. 5Stop lights, high mounted stoplight
2P/ W- B5Power window master switch
3P/ S E AT 1 F/ L30Po w e r s e a t s
4D/L NO.125Power door lock system
5NV-IR10No circuit
6FL S/HTR10Seat heaters/ventilators
7WIPER30Windshield wipers
8WIPER-IG5Windshield wipers
9LH-IG10
Seat belts, body ECU, AFS, overhead mod-
ule, raindrop sensor, inside rear view mirror,
lane camera sensor (LKA), head-up display,
shift lock system, Lexus parking assist-sensor,
front left-hand door ECU, driver monitor sys-
tem, Remote Touch screen, electric tilt and
telescopic steering column, power seats,
moon roof, Lexus parking assist-sensor
switch, Blind Spot Monitor buzzer
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5066-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
XRight-hand drive vehicles
FuseAmpereCircuit
1P/ S E AT 1 F/ L30Po w e r s e a t s
2D/L NO.125Power door lock system
3NV-IR10No circuit
4FL S/HTR10Seat heaters/ventilators
5STRG HTR15Heated steering wheel
6WIPER-IG5Windshield wipers
7LH-IG10
Seat belts, body ECU, AFS, Remote Touch
screen, overhead module, raindrop sensor,
moon roof, inside rear view mirror, LKA,
front left-hand door ECU, Lexus parking
assist-sensor, power seats, CAN gateway
ECU, Blind Spot Monitor buzzer
8LH ECU-IG10Yaw rate and G sensor, air conditioning sys-
tem, AFS, driver support system
9DOOR FL30Outside rear view mirror defoggers, power
window (front left-hand)
10CAPACITOR
(HV)10No circuit
11AM27. 5Power management system, smart entry &
start system
12D/L NO.225Power door lock system
13DOOR RL30Power window (rear left-hand)
14HAZ15Turn signal lights, emergency flashers
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5126-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
■Tr u n k
FuseAmpereCircuit
1PSB30Pre-crash seat belts
2PTL25Power trunk lid
3RR J/B-B10Smart entry & start system
4RR S/HTR20Seat heaters (rear)
5FR S/HTR10Seat heaters/ventilators (front)
6RR FOG10Rear fog light
7DC/DC-S (HV)7. 5No circuit
8BATT FAN (HV)20No circuit
9SECURITY7. 5SECURITY
10ECU-B NO.37. 5Pa r k in g b ra ke
11TRK OPN7. 5Power trunk lid
12DCM (HV)7. 5No circuit
13AC INV (HV)20No circuit
14RR-IG15Radar sensor, Blind Spot Monitor
15RR ECU-IG10
Power trunk lid, parking brake, tension
reducer (rear left-hand), RR CTRL SW, tire
pressure warning system
16EPS-IG5Electric power steering system
17BACK UP7. 5Back-up light
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5497-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely
empty. If the fuel tank is empty, refuel the vehicle immediately. The malfunction indi-
cator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check that the tire
inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted without
first allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
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5557-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
(If equipped)
Indicates a malfunction in the Lexus parking-assist
sensorAll assist-sensors flash.
Indicates a malfunction in the dynamic radar cruise
control system (if equipped) or the cruise control sys-
temPress the “ON-OFF” button once to deactivate the
system, and then press the button again to reacti-
vate the system.
(If equipped)
Indicates a malfunction in the LKA (Lane-Keeping
Assist)
(If equipped)
Indicates a malfunction in the LED headlight system
Wa r n i n g m e s s a g eDetails
(Flashes)
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5627-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
Indicates that engine oil
level is lowCheck the level of engine
oil, and add if necessary.
(If equipped)
Indicates that Lexus park-
ing assist-sensor is dirty
or covered with ice
Clean the sensor.
(If equipped)
Indicates that the radar
sensor is dirty or covered
with ice
Clean the sensor.
(If equipped)
Indicates that the radar
cruise control system is
unable to judge vehicle-
to-vehicle distance
•Turn off the snowmode.
• If the windshield wip- ers are on, turn them
off or set them to a
mode other than
AUTO or high speed
wiper operation.
Wa r n i n g m e s s a g eDetailsCorrection procedure
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5637-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
(If equipped)
Indicates that your vehi-
cle is nearing the vehicle
ahead (in vehicle-to-vehi-
cle distance mode)At the same time,
will appear on the
head-up display (the
image flashes).
Slow the vehicle by
applying the brakes.
(If equipped)
Indicates that there is a
high possibility of a frontal
collision, or that the pre-
crash braking function is
operatingAt the same time,
will appear
on the head-up display.
Slow the vehicle by
applying the brakes.
(If equipped)
Indicates that the LKA
(Lane-Keeping Assist) is
suspended
•The camera sensor temperature is higher
than the operation tem-
perature range.
•The power steering system operation is
restricted.
Restart the LKA after
driving for a while.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(Flashes
rapidly)
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5647-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
(If equipped)
Alerts the driver that the
vehicle is out of the lanes
(while the LKA [Lane-
Keeping Assist] system is
operating)The warning buzzer
sounds continuously.
The lane markings and/
or the steering wheel
marking flash.
At the same time,
will appear
on the head-up display
(part of the image
flashes).
Check around the vehi-
cle and back to inside of
the lane markings.
(If equipped)
Indicates that the LKA
(Lane-Keeping Assist)
system detects no-
handed driving (while the
lane keeping assist func-
tion is operating) The warning buzzer
sounds twice.
Grip the steering wheel
firmly.
(If equipped)
Indicates that the Blind
Spot Monitor sensors or
the surrounding area on
the bumper is dirty or
covered with ice
Clean the sensor and its
surrounding area on the
bumper.
Wa r n i n g m e s s a g eDetailsCorrection procedure
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5697-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the pre-
crash safety system is not
currently functional
because the grille cover
or the sensor is dirtyThis message also
appears when the pre-
crash safety system is
not functional due to
overheating.
• Check the grille coverand the sensor and
clean them if they are
dirty.
• In case of overheating, the system will become
functional once the sys-
tem cools down.
Indicates that operation
of large electricity con-
suming systems such as
the air conditioning sys-
tem are suspended
Stop using unnecessary
electric components to
reduce electricity con-
sumption until the warn-
ing message disappears.If the warning message
is displayed frequently,
have the vehicle
inspected by any
authorized Lexus
dealer or repairer, or
another duly qualified
and equipped profes-
sional.
(Flashes)
(Flashes)
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