electical component harrier

7/29/2019 Electical Component Harrier

1/16

SECTION

64

2872001 MY RX300_U (OM48431U)

SERVICE PROCEDURES ANDSPECIFICATIONS

Electrical components

Specifications 288. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking battery condition 291. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Battery recharging precautions 294. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking and replacing the blade type fuses 294. . . . . . . . . . . . . . . .

Checking the cartridge type fuses 297. . . . . . . . . . . . . . . . . . . . . . . . . .

Adding washer fluid 298. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Checking the headlight aim 299. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing light bulbs 300. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


2/16

ELECTRICAL COMPONENTS

288 2001 MY RX300_U (OM48431U)

SPECIFICATIONS FUSE LOCATIONS

64R032

"

1 2 Engine compartment3 Drivers side instrument panel

FUSES

64R003

"Engine compartment

64R098

"Engine compartment


3/16


2892001 MY RX300_U (OM48431U)

64R099

"Drivers side instrument panel

No.

FUSEAMPERE

CIRCUIT1 DRL 7.5 Daytime Running Light System

2 TOWING 20 Trailer lights

3HLP R

LWR15

Righthand headlight(Low beam)

4HLP L

LWR15

Lefthand headlight(Low beam)

5 HAZARD 15Emergency flashers, Turnsignal lights

6 AM2 20 Starting system

7 TEL 15 Telephone

8 FL DOOR 20 Power door lock system

9 SPARE 7.5 Spare fuse

10 SPARE 15 Spare fuse

11 SPARE 25 Spare fuse

12 ALTS 7.5 Charging system

13 HORN 10 Theft deterrent system, Horn

14 EFI 20Multiport fuel injectionsystem/Sequential multiport fuelinjection system

15 DOME 10

Interior light, Vanity lights, Footlights, Rear personal light,Gauges and meters,Multidisplay

16 ECUB 7.5 Multiplex computer

17 RAD NO.1 25 Audio system


4/16


290 2001 MY RX300_U (OM48431U)

No. FUSE AMPERE CIRCUIT

18 ABS 3 7.5 Antilock brake system

19HLP R

UPR15

Righthand headlight(high beam)

20HLP L

UPR15

Lefthand headlight(high beam)

21 A/F HTR 25 Air fuel ratio sensor

22 IGN 7.5SRS system, Multiport fuelinjection/Sequential multiportfuel injection system

23RADIONO.2

7.5Audio system, Multiplexcomputer

24 CIG 15Cigarette lighter, Outside rearview mirrors, Power door locksystem

25D RRDOOR

20Rear door lock, Rear powerwindow

26PWR

OUTLET15

Power outlets

27 FR FOG 15 Fog lights

28 SRSIG 15 SRS system

29 ECUIG 15

Telephone, Inside rear viewmirror, Antilock brake system,Traction control system,Multidisplay

30 WIPER 25 Windshield wipers


31P RR

DOOR20

Rear door lock, Rear powerwindow

32P FR

DOOR20

Front door lock, Front powerwindow

33 S/ROOF 20 Moon roof

34 HEATER 15 Air conditioning system

35 GAUGE 7.5Multiplex computer, Servicereminder indicators

36 RR WIP 15 Rear window wiper

37 STOP 20Stop lights, High mountedstoplight, Antilock brakesystem, Traction control system

38 OBD 7.5 Onboard diagnosis system

39 SEAT HTR 15 Seat heater system

40 STARTER 7.5 Starting system

41 WASHER 20 Washer

42 RR FOG 7.5 No circuit

43 FR DEF 20Rear window and outside rearview mirror defogger

44 TAIL 10Tail lights, Side marker lights,License plate lights, Parkinglights

45 PANEL 7.5 Instrument panel lights

46 ABS 60 Antilock brake system

47 ALT 140 Charging system


5/16


2912001 MY RX300_U (OM48431U)


48 RDI 40 Cooling fan system

49 CDS 40 Cooling fan system

50 RR DEF 30Rear window and outside rearview mirror defogger

51 HEATER 50 Blower

52 MAIN 50 Starting system

53 AM1 40 Ignition system

54 POWER 30 Power seats

CHECKING BATTERY CONDITIONPrecautions

CAUTION

BATTERY PRECAUTIONS

The battery produces flammable and explosivehydrogen gas.

D Do not cause a spark by contacting the batteryterminals with tools.

D Do not smoke or light a match near the battery.

The electrolyte contains poisonous and corrosive

sulfuric acid.

D Avoid contact with eyes, skin or clothes.

D Never inhale or swallow electrolyte.

D Wear protective safety glasses when working nearthe battery.

D Keep children away from the battery.

EMERGENCY MEASURES

D If electrolyte gets in your eyes, flush your eyes withclean water for at least 15 minutes and get immediatemedical attention. If possible, continue to applywater with a sponge or cloth while traveling to themedical office.


6/16


292 2001 MY RX300_U (OM48431U)

D If electrolyte gets on your skin, thoroughly wash thecontacted area. If you feel a pain or burn, get medicalattention immediately.

D If electrolyte gets on your clothes, there is apossibility of its soaking through to your skin, soimmediately take off the exposed clothing and followthe procedure above, if necessary.

D If you accidentally swallow electrolyte, drink a largequantity of water or milk. Follow with milk ofmagnesia, beaten raw egg or vegetable oil. Then goimmediately for emergency help.

D Warning: Battery posts, terminals and relatedaccessories contain lead and lead compounds,chemicals known to the State of California to cause

cancer and reproductive harm. Wash hands afterhandling.

Checking battery exterior

64R104

" 1 Terminals 2 Holddown clamp

Check the battery for corroded or loose connections,cracks, or loose holddown clamps.

1. If the battery is corroded, wash it off with a solution of warmwater and baking soda. Coat the terminals with grease toprevent further corrosion.

2. If the connections are loose, tighten the clamp bolts but donot overtighten.

3. Tighten the holddown clamp only enough to keep thebattery firmly in place. Overtightening may damage the batterycase.


7/16


2932001 MY RX300_U (OM48431U)

NOTICED Make sure the engine and all accessories are turned

off before performing maintenance.

D When checking the battery, remove the ground cablefirst and reinstall it last.

D Be careful not to cause a short circuit with tools.

D Take care no solution gets into the battery whenwashing it.

Checking battery fluid

Checking by hydrometer

64R105

Check the battery condition by the hydrometer color.1 RED Have the battery checked by your Lexus dealer.

2 BLUE Good condition.

3 WHITE Charging necessary. Have the battery checkedby your Lexus dealer.

NOTICE

Do not refill the battery with water.


8/16


294 2001 MY RX300_U (OM48431U)

BATTERY RECHARGINGPRECAUTIONSDuring recharging, the battery is producing hydrogengas.

Therefore, before recharging:

1. If recharging with the battery installed on the vehicle, besure to disconnect the ground cable.

2. Make sure the power switch on the recharger is off whenconnecting the charger cables to the battery and whendisconnecting them.

CAUTION

D Always charge the battery in an unconfined area. Donot charge the battery in a garage or closed roomwhere there is not sufficient ventilation.

D Only do a slow charge (5 A or less). Charging at aquicker rate is dangerous. The battery may explodecausing personal injuries.

NOTICE

Never recharge the battery while the engine is running.Also, be sure all accessories are turned off.

CHECKING AND REPLACING THEBLADE TYPE FUSES

64R053

"Engine compartment

64R010b

"Engine compartment 1 Pullout tool 2 Spare fuses


9/16


2952001 MY RX300_U (OM48431U)

64R011b


1. Turn the ignition switch off and remove the auxiliarybox.

Determine which fuse may be causing the problem. Theauxiliary box shows the name of the circuit for each fuse.

64L013

2. Make sure the inoperative component is turned off. Pullthe suspected fuse straight out with the pullout tool andcheck it. If it has blown, push a new fuse into the clips.


10/16


296 2001 MY RX300_U (OM48431U)

64G008

"Good "Blown

a. Look carefully at the fuse. If the thin wire is broken, the fusehas blown. If you are not sure or if it is too dark to see, try

replacing the suspected fuse with one of the same value thatyou know is good.

b. Only install a fuse with the amperage rating designated onthe fuse box lid.

If you do not have a spare fuse, in an emergency you can pullout the RAD NO.1, RADIO NO.2 or PWR OUTLET fuse,which may be dispensable for normal driving, and use it if itsamperage rating is the same.

If you cannot use one of the same amperage, use one lowerthan, but as close as possible to, the amperage. If theamperage is lower than that specified, the fuse might blow outagain but this does not indicate anything wrong. Be sure to getthe correct fuse as soon as possible and return the substituteto its original clips.

It is a good idea to purchase a set of spare fuses and keep them

in your vehicle for emergencies.

If the new fuse immediately blows out, there is a problem withthe electrical system. Have your Lexus dealer correct it assoon as possible.

CAUTION

Never use a fuse with a higher amperage rating, or anyother object, in place of a fuse. This may causeextensive damage and possibly a fire.


11/16


2972001 MY RX300_U (OM48431U)

CHECKING THE CARTRIDGE TYPEFUSES

64R013

"Engine compartment

64R014b


If the headlights or other electrical components do not

work and the blade type fuses are O.K., check thecartridge type fuses. If any of the cartridge type fuses areblown, they must be replaced.


12/16


298 2001 MY RX300_U (OM48431U)

64R023

" 1 Type A 2 Type B 3 Good 4 Blown

If there is an overload in the circuits from the battery, the fusesare designed to blow before the entire wiring harness is

damaged.

CAUTION

Always use a genuine Lexus fuse or equivalent forreplacement. Never install an ordinary wire even fora temporary fix. This may cause extensive damage andpossibly a fire.

NOTICE

Before replacing the fuses, have the cause of electricaloverload determined and repaired by your Lexus dealer.

ADDING WASHER FLUID

64R016b

If the washer tank becomes nearly empty, add washerfluid.

You may use plain water as washer fluid. However, in coldareas where temperatures range below the freezing point, usewasher fluid containing antifreeze. This product is available atyour Lexus dealer and most auto parts stores. Follow themanufacturers directions for how much to mix with water.

NOTICE

Do not use engine antifreeze or any other substitutebecause it may damage your vehicles paint.


13/16


2992001 MY RX300_U (OM48431U)

CHECKING THE HEADLIGHT AIM(Vehicles with discharge headlight only)

64R100

" 1 Vertical movement adjusting bolt 12 Vertical movement adjusting bolt 2

Before checking the headlight aim:

1. Be sure that the body around the headlight is not deformed.

2. Park the vehicle on a level spot.

3. The driver gets into the drivers seat and puts the vehicle ina state readying for a driving (with a full tank).

4. Bounce the vehicle several times.

Adjusting the vertical aiming

64R101

1. Turn the vertical movement adjusting bolt 1 in eitherdirection. At this time, keep the turning direction and number

of turns in mind.

2. Turn the vertical movement adjusting bolt 2 the samenumber of turns and in the same direction at step 1.


14/16


300 2001 MY RX300_U (OM48431U)

REPLACING LIGHT BULBSThe illustration on the following pages show the locations oflight bulbs. If it is necessary to replace a bulb, take your vehicleto your Lexus dealer as soon as possible. Use bulbs with thebulb numbers and wattage ratings given in the table.

CAUTION

D To prevent yourself from burning, do not replace thelight bulbs while they are hot.

D Halogen bulbs have pressurized gas inside andrequire special handling. They can burst or shatter ifscratched or dropped. Hold a bulb only by its plasticor metal case. Do not touch the glass part of a bulb

with bare hands.

NOTICE

Only use a bulb of the listed type.

The inside of the lens of exterior lights such as headlights maytemporarily fog up when the lens becomes wet in the rain or ina car wash. This is not a problem because the fogging iscaused by the temperature difference between the outside andinside of the lens, just like the windshield fogged up in the rain.However, if there is a large drop of water on the inside of thelens, or if there is water pooled inside the light, contact yourLexus dealer.

LIGHT LOCATION

64R033

Light Bulbs Bulb No. W Type

1 Headlights (high beam) 9005 60 A

2 Headlights (low beam)

Discharge bulb D2R 35 BHalogen bulb 9006 51 C

3 Parking lights 168 5 E

4 Front turn signal 7440 21 Elights

5 Fog lights 9006 51 C

6 Front side marker lights 194 3.8 E


15/16


3012001 MY RX300_U (OM48431U)

64R034


7 High mounted stoplight 921 18 E

8 Rear turn signal lights 7440 21 E

9 Stop/tail lights 7443 21/5 E

10 Rear side marker lights 194 3.8 E

11 Backup lights 7440 21 E

12 License plate lights 168 5 E

64R035


13 Vanity lights 1.5 F

14 Personal light 10 D

15 Interior lights 8 F

16 Door courtesy lights 5 E

17 Glove box light 1.2 E

A: HB3 halogen bulbs

B: D2R discharge bulbs

C: HB4 halogen bulbs

D: Single end bulbs

E: Wedge base bulbs

F: Double end bulbs


16/16


302 2001 MY RX300_U (OM48431U)

electical component harrier

Documents