2007 TOYOTA TUNDRA immobilizer

2082007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS17001a
“START”—Starter motor on. The key
will return to the “ON” position when
released.
For starting tips, see page 468 in Section
3.
“ON”—Engine on and all accessories
on.
This is the normal driving position.
“ACC”—Accessories such as the radio
operate, but the engine is off.
If you leave the key in the “ACC” or
“LOCK” position and open the driver’s
door, a buzzer will remind you to remove
the key.“LOCK”—Engine is off and the steering
wheel is locked. The key can be re-
moved only at this position.
You must push in the key to turn the key
from “ACC” to the “LOCK” position. The
selector lever must be put in the “P” posi-
tion before pushing the key.
Vehicles with engine immobilizer system—
Once you remove the key, the engine im-
mobilizer system is automatically set. (See
“Engine immobilizer system” on page 21
in Section 1−
2.)
When starting the engine, the key may
seem stuck at the “LOCK” position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
Approximately five hours after the engine
is turned off, you may hear sound coming
from underneath the deck for several min-
utes. This is normal operation and does
not indicate a malfunction. (See “Leak
detection pump” on page ix.)
It is not a malfunction if the needles on
all meters and gauges move slightly when
the ignition switch is turned to the “ACC”,
“ON” or “START” position.
NOTICE
Do not leave the key in the “ON”
position if the engine is not running.
The battery will discharge and the
ignition could be damaged.
Ignition switch

4932007 TUNDRA from Jul. ’07 Prod. (OM34463U)
Before making these checks, make sure
you have followed the correct starting pro-
cedure given in “How to start the engine”
on page 468 in Section 3 and that you
have sufficient fuel. If your vehicle is
equipped with the engine immobilizer sys-
tem, also check whether the other keys
will start the engine. If they work, your
key may be broken. Have the key
checked at your Toyota dealer. If none of
your keys work, there may be a malfunc-
tion in the immobilizer system. Call your
Toyota dealer. (See “Keys (with engine
immobilizer system)” on page 18 in Sec-
tion 1−2.)
If the engine is not turning over or is
turning over too slowly— 1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior lights or personal lights.
3. If the light is out, dim or goes out when the starter is cranked, the battery
is discharged. You may try jump start-
ing. See “(c) Jump starting” for further
instructions.
If the light is O.K., but the engine still will
not start, it needs adjustment or repair.
Call a Toyota dealer or qualified repair
shop.NOTICE
Do not pull or pushstart the ve-
hicle. It may damage the vehicle or
cause a collision when the engine
starts. Also the threeway catalytic
converter may overheat and become a
fire hazard.
If the engine turns over at its normal
speed but will not start—
1. Turn the ignition switch to the “ACC” or “LOCK” position and try starting the
engine again.
2. If the engine will not start, the engine may be flooded because of repeated
cranking. See “(b) Starting a flooded
engine” for further instructions.
3. If the engine still will not start, it needs adjustment or repair. Call a Toyota
dealer or qualified repair shop. If the engine will not start, your engine
may be flooded because of repeated
cranking.
If this happens, turn the ignition switch to
the “START” position with the accelerator
pedal fully depressed. Keep the key and
accelerator pedal in these positions for 15
seconds and release them. Then try start-
ing the engine with your foot off the accel-
erator pedal.
If the engine does not start after 15 se-
conds of cranking, release the key, wait
a few minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call a Toyota dealer
or qualified repair shop for assistance.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
If your vehicle will not start—
(a) Simple checks
(b) Starting a flooded engine

5182007 TUNDRA from Jul. ’07 Prod. (OM34463U)
You can purchase a new key at your
Toyota dealer if you can give them the
key number. If your vehicle is equipped
with the engine immobilizer system, the
dealer will also need your master key.
Vehicles with engine immobilizer sys-
tem—Even if you lose only one key, con-
tact your Toyota dealer to make a new
key. If you lose all your master keys, you
cannot make new keys; the whole engine
immobilizer system must be replaced.
See the suggestion given in “Keys” on
page 18 in Section 1−2.
If your keys are locked in the vehicle and
you cannot get a duplicate, many Toyota
dealers can still open the door for you,
using their special tools. If you must
break a window to get in, we suggest
breaking the smallest side window be-
cause it is the least expensive to replace.
Be extremely cautious to avoid cuts from
the glass. You can purchase a new wireless re-
mote control transmitter at your Toyota
dealer.
Have the registered identification numbers
of your transmitters deleted from your ve-
hicle by your Toyota dealer as soon as
possible to avoid the possibility of theft or
an accident. Then, have the identification
number of your new transmitter registered.
At the same time, you must bring all of
the remaining transmitters to have them
registered again as well.
You can use the wireless remote control
system with the new transmitter. Contact
your Toyota dealer for detailed information.
If you lose your keys
If you lose your wireless
remote control transmitter

5872007 TUNDRA from Jul. ’07 Prod. (OM34463U)
Engine compartment
Fuses (type A)
1. A/F 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system
2. HORN 10 A: Horn
3. EFI NO.1 25 A: Multiport fuel injection
system/s equential multiport fuel injec-
tion system
4. IG2 MAIN 30 A: “INJ”, “MET”, “IGN”
fuses
5. DEICER 20 A: Front window deicer
6. TOW TAIL 30 A: Trailer lights (tail
lights)
7. POWER NO.2 30 A: Power back win-
dow
8. FOG 15 A: Front fog lights
9. STOP 15 A: Stop lights, high mounted
stop light, vehicle stability control sys-
tem, anti− lock brake system, shift lock
system, multiport fuel injection system/
sequential multiport fuel injection sys-
tem, towing converter
10. TOW BRK 30 A: Trailer brake control-
ler
11. IMB 7.5 A: Engine immobilizer system
12. AM2 7.5 A: Starting system
13. TOWING 30 A: Towing converter
14. ALTS 5 A: Charging system
Fuses
XS73034

5882007 TUNDRA from Jul. ’07 Prod. (OM34463U)
XS73028
Instrument panel
15. TURNHAZ 15 A: Turn signal lights,
emergency flashers, towing converter
16. F/PMP 15 A: No circuit
17. ETCS 10 A: Multiport fuel injection
system/S equential multiport fuel injec-
tion system, electric throttle control
system
18. METB 5 A: Gauges and meters
19. AMP 30 A: Audio system, rear view
monitor, navigation system, rear seat
entertainment system
20. RAD NO.1 15 A: Audio system, rear
view monitor, navigation system, rear
seat entertainment system 21. ECUB1 7.5 A:
Multiplex communica-
tion system, Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, auto anti− glare inside rear
view mirror, power outlets, power front
drivers seat, power tilt and telescopic
system
22. DOME 7.5 A: Interior lights, personal
lights, vanity lights, ignition switch light,
foot light, door courtesy lights, acces-
sory meter
23. HEAD LH 15 A: Left−hand headlight
(high beam)
24. HEAD LL 15 A: Left−hand headlight
(low beam)
25. INJ 10 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, ignition system
26. MET 7.5 A: Gauges and meters
27. IGN 10 A: SRS airbag system, multi-
port fuel injection system/sequential
multiport fuel injection system, engine
immobilizer system, cruise control sys-
tem
28. HEAD RH 15 A: Right−hand headlight
(high beam)
29. HEAD RL 15 A: Right−hand headlight
(low beam) 30. EFI NO.2 10 A:
Multiport fuel injection
system/s equential multiport fuel injec-
tion system, leak detection pump
31. DEF I/UP 5 A: No circuit
32. SPARE 5 A: Spare fuse
33. SPARE 15 A: Spare fuse
34. SPARE 30 A: Spare fuse
35. INVERTER 15 A: Power outlet No cir-
cuit(115 V)
36. FR P/SEAT LH 30 A: Power front driv-
ers seat
37. DR/LCK 25 A: Multiplex communication
system
38. OBD 7.5 A: On−board diagnosis sys-
tem
39. PWR OUTLET 15 A: Power outlets
40. CARGO LP 7.5 A: Cargo lamp
41. AM1 7.5 A: Shift lock system, starting
system
42. A/C 7.5 A: Air conditioning system
43. MIR 15 A: Outside rear view mirror
control, outside rear view mirror heat-
ers
4

4. FR P/SEAT RH 30 A: Power front pas-
senger seat
45. TI&TE 15 A: Power tilt and power tele-
scopic