2006 TOYOTA HIGHLANDER HYBRID ECU

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
NOTICE
Only use specified towing eyelet;
otherwise your vehicle may be dam-
aged.
 Never tow a vehicle from the rear
with four wheels on the ground.
This may cause serious damage to
the transmission.
A driver must be in the vehicle to steer
it and operate the brakes.
Towing in this manner may be done only
on hard− surfaced roads for a short dis-
tance and at low speeds. Also, the
wheels, axles, drive train, steering and
brakes must all be in good condition.
CAUTION
Use extreme caution when towing ve-
hicles. Avoid sudden starts or erratic
driving maneuvers which would place
excessive stress on the emergency
towing eyelet and towing cable or
chain. The eyelet and towing cable or
chain may break and cause serious
injury or damage.
NOTICE
Use only a cable or chain specifically
intended for use in towing vehicles.
Securely fasten the cable or chain to
the towing eyelet provided.
Before towing, release the parking brake
and put the transmission in “N”. The key
must be in “ACC” (hybrid system off) or
“ON” (hybrid system on).
CAUTION
When the hybrid system is off, the
power assist for the brakes and steer-
ing will not work so steering and
braking will be much more difficult
than usual.1. Remove the front towing eyelet cover on the front bumper by pushing the
outside of the cover.
—Installing front towing eyelet

’06 HIGHLANDER HB_U (L/O 0503)
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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
2. Use the front towing eyelet in the lug-
gage compartment. Secure it to the
hole on the bumper by turning clock-
wise.
For the towing eyelet location, see
“—Required tools and spare tire” on
page 345 in this Section.3. Tighten the front towing eyelet securelyby a wheel nut wrench.
CAUTION
When installing the eyelet on the ve-
hicle, be sure to tighten the front
eyelet securely. If the eyelet is loose,
it may come off when being towed
and result in death or serious injury.
Before emergency towing, check that
the eyelet is not broken or damaged
and that the installation bolts are not
loose.
Fasten the towing cable or chain se-
curely to the eyelet.
Do not jerk the eyelet. Apply steady
and even force.
To avoid damaging the eyelet, do not
pull from the side or at a vertical
angle. Always pull straight ahead.
—Emergency towing eyelet
precautions

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See “Engine exhaust cautions” on
page 305 in Section 2.)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Check that it has the specified free play.
Be alert for changes in steering condition,
such as hard steering or strange noise. Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For folding
−down rear seatbacks,
check that the latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.
Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
In a safe place, check that the brakes do
not pull to one side when applied. Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Transmission “Park” mechanism
Check the lock release button of the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check that your
vehicle is held securely with the selector
lever in “P” position and all brakes re-
leased.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all side doors and back door
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released.

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Removing clip
Installing clip
Before checking the fuse or replacing
the left front light bulbs, etc. in the
engine compartment, remove the engine
compartment covers as shown in the
illustrations:
1. Push the core of the clips and remove the clips.
2. Remove the cover.
Be careful not to lose the removed plastic
clips.
After checking the items, install the en-
gine compartment covers and insert the
plastic clips in their original positions.
NOTICE
After installing the engine compart-
ment covers, make sure the covers
are securely in their original posi-
tions.
Fuse locations

’06 HIGHLANDER HB_U (L/O 0503)
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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
Engine compartment
Fuses (type A)
1. ETCS 10 A: Hybrid system
2. DC/DCS 10 A: Hybrid system
3. ABS NO.2 10 A: Electronically con-
trolled brake system
4. ABS NO.1 10 A: Electronically con-
trolled brake system
5. BATT FAN 15 A: Hybrid system
6. ABS NO.3 15 A: Electronically con-
trolled brake system
7. OIL PUMP 10 A: Transmission fluid
cooling system
8. ST 7.5 A: Hybrid system
Engine compartment
9. RR HTR 15 A: Rear heater system
10. DRL 7.5 A: Daytime running light sys-
tem
11. HLP L LWR 15 A: Left−hand head-
light (low beam)
12. HLP L UPR 15 A: Left−hand headlight
(high beam)
13. HLP R UPR 15 A: Right−hand head-
light (high beam)
14. PWR OUTLET NO.2 20 A: Power out-
let (115 VAC)
15. TOWING 20 A: Trailer lights
Instrument panel
16. HAZ 15 A: Turn signal lights, emergen-
cy flashers
17. SECURITY 15 A: Theft deterrent sys-
tem
18. AM2 NO.1 30 A: “IGN”, “IG2” and “ST”
fuses
19. MPXB1 7.5 A: Electric power steering
system
20. HORN 10 A: Horns
21. RADIO NO.1 25 A: Audio system

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
22. ECUB NO.1 7.5 A: Theft deterrent
system, air c onditioning system,
gauges and meters, electric moonroof,
engine immob ilizer system, multiplex
communication system
23. DOME 10 A: Personal lights, interior
lights, vanity lights, ignition switch light,
wireless remote control system, gauges
and meters, navigation system
24. DOOR NO.1 25 A: Power door lock
system
25. A/F 25 A: Air/fuel control system
26. CRT 7.5 A: Rear seat entertainment
system, navigation system screen
27. HLP R LWR 15 A: Right−hand head-
light (low beam)
28. INV W/P 15 A: Hybrid system
29. IGCT NO.5 10 A: Hybrid system
30. WATER PUMP 10 A: Air conditioning
system
31. IGCT NO.4 10 A: Emission control
system, transmission control system,
air/ fuel control system
32. IGCT NO.3 10 A: Hybrid system, fuel
pump
33. IGCT NO.2 10 A: Hybrid system34. IGN 10 A:
Meters and gauges, SRS
airbag system, hybrid system, electroni-
cally controlled brake system, engine
immobilizer system
35. RAD NO.2 7.5 A: Audio system, rear
seat entertainment system, navigation
system, air c onditioning system, multi-
plex communication system
36. CIG 15 A: Cigarette lighter
37. P RR DOOR 20 A: Power windows
38. PWR OUTLET1 15 A: Power outlets
(12 VDC)
39. FR FOG 20 A: Front fog lights
40. ECUIG 10 A: Electronically controlled
brake system, transmission control sys-
tem, electric power steering system,
theft deterrent system
41. WIPER 25 A: Windshield wipers
42. D RR DOOR 20 A: Power windows
43. D FR DOOR 25 A: Power windows,
power door lock system, door courtesy
light
44. S/ROOF 20 A: Electric moonroof
45. HEATER 10 A: Air conditioning system,
rear heater system, rear window defog-
ger, hybrid system 46. IG1 7.5 A:
Hybrid system, power door
lock system, multiplex communication
system, airbag on −off indicator lights,
turn signal lights, back −up lights, out-
side rear view mirror defoggers, auto
anti −glare inside rear view mirror, pow-
er outlet (115 VAC), seat heaters, navi-
gation system
47. RR WIP 15 A: Rear window wiper
48. STOP 20 A: Stop lights, high mounted
stoplight, electronically controlled brake
system, transmission control system,
hybrid system
49. OBD 7.5 A: On−board diagnosis sys-
te

m
50. SEAT HTR 15 A: Seat heaters
51. IG2 15 A: Multiport fuel injection sys-
tem/sequential fuel injection system,
engine ignition system
52. WASHER 20 A: Windshield washer,
rear window washer
53. FUEL OPN 7.5 A: Fuel filler door
opening system
54. FR DEF 20 A: Windshield wiper deicer,
rear view mirror defoggers
55. P FR DOOR 20 A: Power windows,
door courtesy light

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2006 HIGHLANDER (Hybrid) from Mar. ’05 Prod. (OM48530U)
56. TAIL 10 A: Parking lights, tail lights,
side marker lights, license plate lights,
front fog lights
57. PANEL 7.5 A: Instrument panel lights
Fuses (type B)
58. ABS MTR2 30 A: Electronically con-
trolled brake system
59. ABS MTR1 30 A: Electronically con-
trolled brake system
60. HEATER 50 A: Air conditioning system,
“WATER PUMP” fuse
61. RR HTR 30 A: Rear heater system
62. RR DEF 30 A: Rear window defogger
63. RDI FAN NO.1 40 A: Electric cooling
fan
64. RDI FAN NO.2 40 A: Electric cooling
fan
65. MAIN 40 A: “H−LP L LWR”, “H −LP L
UPR”, “H− LP R LWR”, “H −LP R UPR”
and “DRL” fuses
66. IGCT NO.1 50 A: “INV W/P”, “IGCT
NO.2”, “IGCT NO.3”, “IGCT NO.4” and
“IGCT NO.5” fuses
67. AM1 40 A: “ECU−IG”, “WASHER”,
“IG1”, “WIPER”, “RR WIP”, “HEATER
(10 A)”, “RAD NO.2” and “CIG” fuses
68. POWER 30 A: Power seat Fuses (type C)
69. DC/DC 120 A: Hybrid system