2007 TOYOTA TUNDRA monitor

4472007 TUNDRA from Jul. ’07 Prod. (OM34463U)
If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components monitored by
the warning light system. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
ignition switch is turned to the “ON”
position, or remains on.
The light comes on while you are dri-
ving.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the “ABS” warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the antilock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.
DRUMINDISC TYPE PARKING BRAKE
SYSTEM
Your vehicle has a drum −in −disc type
parking brake system. This type of brake
system n eeds burnishing of the brake
shoes periodically or whenever the parking
brake shoes and/or drums are replaced.
Have your Toyota dealer perform the bur-
nishing. BRAKE ASSIST SYSTEM
When you slam the brakes on, the
brake assist system judges as an emer-
gency stop and provides more powerful
braking for a driver who cannot hold
down the brake pedal firmly.
When you slam the brakes on, more pow-
erful braking will be applied. At this time,
you may hear a sound in the engine
compartment and feel the vibrations of the
brake pedal. This does not indicate a mal-
function.
The brake assist system becomes opera-
tive after the vehicle has accelerated to
a speed in excess of approximately 10
km/h (6 mph). It stops operating when the
vehicle decelerates to a speed below
approximately 5 km/h (3 mph).
For an explanation of this system’s warn-
ing light, see “Service reminder indicators
and warning buzzers” on page 197 in Sec-
tion 1
−6.

5332007 TUNDRA from Jul. ’07 Prod. (OM34463U)
If you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Some states have vehicle emission in-
spection programs which include OBD
(On−Board Diagnostics) che cks.
The OBD system monitors the operation
of the emission control system. When the
OBD system determines that a problem
exists somewhere in the emission control
system, the malfunction indicator lamp
comes on. In this case, your vehicle may
not pass the I/M test and need to be
repaired. Contact your Toyota dealer to
service the vehicle.
Even if the malfunction indicator lamp
does not come on, your vehicle may not
pass the I/M test as readiness codes
have not been set in the OBD system.
Readiness codes are automatically set
during ordinary driving. However, when the
battery is disconnected or run down, the
codes are erased. Also, depending on
your driving habits, the codes may not be
completely set.
Also, if the malfunction indicator lamp had
come on recently due to temporary mal-
function such as a loose fuel tank cap,
your vehicle may not pass the I/M test. The malfunction indicator lamp will go off
after taking several driving trips, but the
error code in the OBD system will not be
cleared unless about 40 trips or more are
taken.
If your vehicle does not pass the I/M test
even the malfunction indicator lamp does
not come on, contact your Toyota dealer
to prepare the vehicle for re
−testing.
Emissions Inspection and
Maintenance (I/M) programs

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

5892007 TUNDRA from Jul. ’07 Prod. (OM34463U)
46. S/ROOF 25 A: Electric moon roof
47. ECUIG NO.1 7.5 A: Anti−lock brake
system, vehicle stability control system,
multiplex communication system, intu-
itive parking assist system, power front
drivers seat, power tilt and power tele-
scopic, shift lock, tire pressure warning
system, accessory meter, trailer towing,
power outlet, electric moon roof
48. LHIG 7.5 A: Back−up lights, charging
system, g auge and meters, turn signal
lights, air conditioning system, seat
heaters, back window defogger
49. 4WD 20 A: Four−wheel drive control
system
50. WSH 20 A: Window washer
51. WIPER 30 A: Wiper and washer
52. ECUIG NO.2 7.5 A: Multiplex commu-
nication system
53. TAIL 15 A: Tail lights, trailer lights (tail
lights), parking lights, outside rear view
mirror lights
54. A/C IG 10 A: Air conditioning system
55. SEATHTR 20 A: Seat heaters 56. PANEL 7.5 A:
Instrument panel lights,
glove box light, ashtray, accessory me-
ter, audio system, rear view monitor,
navigation system, rear seat entertain-
ment system, gauges and meters, air
conditioning system
57. ACC 7.5 A: Accessory meter, audio
system, rear seat entertainment sys-
tem, rear view monitor, navigation sys-
tem, back −up lights, trailer lights
(back −up lights), multiplex communica-
tion system, power outlet, outside rear
view mirror
58. BK/UP LP 10 A: Back−up light, gauges
and meters
59. CIG 15 A: Cigarette lighter
Fuses (type B)
60. HTR 50 A: Air conditioning system
61. LHJ/B 150 A: “AM1”, “TAIL”, “PANEL”,
“ACC”, “CIG”, “LH −IG”, “4WD”,
“ECU −IG NO.1”, “BK/UP LP”,
“SEAT −HTR”, “A/C IG”, “ECU −IG
NO.2”, “WSH”, “WIPER”, “OBD”, “A/C”,
“TI&TE”, “FR P/SEAT RH”, “MIR”,
“DR/LCK”, “FR P/SEAT LH”, “CARGO
LP”, “PWR OUTLET”, “POWER NO.1”
fuses 62. ALT 180 A (3URFE engine with
towing package), 140 A (others):
“LH−J/B”, “HTR”, “SUB BATT”, “TOW
BRK”, “STOP”, “FOG”, “TOW TAIL”,
“DEICER” fuses
63. A/PUMP NO.1 50 A: Multiport fuel in-
jection system/sequential multiport fuel
injection system
64. A/PUMP NO.2 50 A: Multiport fuel in-
jection system/sequential multiport fuel
injection system
65. MAIN 40 A: “HEAD LL”, “HEAD RL”,
“HEAD LH”, “HEAD RH” fuses
Fuses (type C)
66. DEFOG 40 A: Back window defogger
67. SUB BATT 40 A:
Trailer towing
6

8. ABS1 50 A: Anti−lock brake system,
vehicle stability control system
69. ABS2 40 A: Anti−lock brake system,
vehicle stability control system
70. ST 30 A: Starting system
71. POWER NO.1 30 A: Power windows,
power back window