Toyota Tundra. Manual — part 1491

Initial Engine
Coolant Temp

coolant temperature/
Min.:-40°C, Max.:
120°C

Close to ambient air
temperature

Service data

Initial Intake
Air Temp

Initial intake air
temperature/ Min.: -
40°C, Max.: 120°C

Close to ambient air
temperature

Service data

Battery Voltage

Battery voltage/
Min.: 0 V, Max.:
65.5 V

11 to 14 V: Idling

-

Accel Sens. No.
1 Volt %

Absolute
Accelerator Pedal
Position (APP) No.
1/ Min.: 0%, Max.:
100%

10 to 22%:
accelerator pedal is
released
54 to 86%:
accelerator pedal is
fully depressed

-

Accel Sens. No.
2 Volt %

Absolute APP No.
2/ Min.: 0%, Max.:
100%

12 to 42%:
accelerator pedal is
released
66 to 98%:
accelerator pedal is
fully depressed

-

Accel Sensor
Out No. 1

APP sensor No. 1
voltage/ Min.: 0 V,
Max.: 4.98 V

-

ETCS freeze data

Accel Sensor
Out No. 2

APP sensor No. 2
voltage/ Min.: 0 V,
Max.: 4.98 V

-

ETCS freeze data

Accel Sensor
Out No. 1

APP sensor No. 1
voltage/ Min.: 0 V,
Max.: 4.98 V

0.5 to 1.1 V:
accelerator pedal is
released
2.6 to 4.5 V:
accelerator pedal is
fully depressed

-

Accel Sensor
Out No. 2

APP sensor No. 2
voltage/ Min.: 0 V,
Max.: 4.98 V

1.2 to 2.0 V:
accelerator pedal is
released
3.4 to 5.3 V:
accelerator pedal is
fully depressed

-

Accelerator Idle
Position

Whether or not
accelerator pedal
position sensor
detecting idle/ ON
or OFF

ON: Idling

-

Accel Fully

Accelerator fully
closed value No. 1

-

ETCS service data

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Close #1 (AD) (AD)/ Min.: 0,

Max.: 4.9 V

Accel Fully
Close Learn #1

Accelerator fully
closed learning
value No. 1/ Min.:
0, Max.: 124.5 deg

-

ETCS service data

Accel Fully
Close Learn #2

Accelerator fully
closed learning
value No. 2/ Min.:
0, Max.: 124.5 deg

-

ETCS service data

Throttle Sensor
Volt %

Throttle sensor
positioning/ Min.:
0%, Max.: 100%



10 to 24%:
Throttle fully
closed



64 to 96%:
Throttle fully
open

Calculated value based on VTA1

Throttl Sensor
#2 Volt %

Throttle sensor
positioning #21
Min.: 0%, Max.:
100%

-

Calculated value based on VTA2

ST1

Brake pedal signal/
ON or OFF

ON: Brake pedal
depressed

-

System Guard

System guard/ ON
or OFF

-

ETCS service data

Open Side
Malfunction

Open side
malfunction/ ON or
OFF

-

ETCS service data

Throttle Idle
Position

Whether or not
throttle position
sensor detecting
idle/ ON or OFF

ON: Idling

-

Throttle
Require
Position

Throttle requirement
position/ Min.: 0 V,
Max.: 4.9 V

0.5 to 1.0 V: Idling

-

Throttle Sensor
Position

Absolute throttle
position sensor/
Min.: 0%, Max.:
100%

10 to 18%: Idling

Read the value with intrusive
operation (Active Test).

Throttle
Position No. 1

Throttle position
sensor No. 1 output
voltage/ Min.: 0 V,
Max.: 4.98 V

-

ETCS freeze data

Throttle
Position No. 2

Throttle position
sensor No. 2 output
voltage/ Min.: 0 V,

-

ETCS freeze data

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

Max.: 4.98 V

Throttle
Position No. 1

Throttle position
No. 1/ Min.: 0 V,
Max.: 4.9 V



0.5 to 1.2 V:
Throttle fully
closed



3.2 to 4.8 V:
Throttle fully
open

-

Throttle
Position No. 2

Throttle position
No. 2/ Min.: 0 V,
Max.: 4.9 V



2.0 to 2.9 V:
Throttle fully
closed



4.6 to 5.5 V:
Throttle fully
open

Read the value with intrusive
operation (Active Test).

Throttle
Position
Command

Throttle position
command value/
Min.: 0 V, Max.: 4.9
V

0.5 to 4.8 V

ETCS service data

Throttle Sens
Open Pos#1

Throttle sensor
opener position No.
1/ Min.: 0 V, Max.:
4.9 V

0.6 to 0.9 V

ETCS service data

Throttle Sens
Open Pos#2

Throttle sensor
opener position No.
2/ Min.: 0 V, Max.:
4.9 V

2.2 to 2.6 V

ETCS service data

Throttle Sens
Open #1 (AD)

Throttle sensor
opener position No.
1 (AD)/ Min.: 0V,
Max.: 4.9 V

0.6 to 0.9 V

ETCS service data

Throttle Motor

Whether or not
throttle actuator
control permitted/
ON or OFF

ON: Idling

Read the value with the ignition switch
ON (Do not start engine).

Throttle Motor
Current

Throttle actuator
current/ Min.: 0 A,
Max.: 19.9 A

0 to 3.0 A: Idling

-

Throttle Motor
DUTY

Throttle actuator/
Min.: 0%, Max.:
100%

0.5 to 40%: Idling

-

Throttle Motor
Current

Throttle actuator
current/ Min.: 0 A,
Max.: 19.92 A

0 to 3.0 A: Idling

-

Throttle Motor
Open Duty

Throttle actuator
opening duty ratio/
Min.: 0%, Max.:

0 to 40%: During
idling

When accelerator pedal depressed,
duty ratio increased.

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra

100%

Throttle Motor
Close Duty

Throttle actuator
closed duty ratio/
Min.: 0%, Max.:
100%

0 to 40%: During
idling

When accelerator pedal released
quickly, duty ratio increased.

Throttle Motor
Duty (Open)

Throttle actuator
duty ratio (open)/
Min.: 0%, Max.:
100%

-

ETCS service data

Throttle Motor
Duty (Close)

Throttle actuator
duty ratio (close)/
Min.: 0%, Max.:
100%

-

ETCS service data

Throttle Fully
Close Learn

Throttle valve fully
closed (learned
value) Min.: 0,
Max.: 4.98 V

0.4 to 0.8 V

-

ETCS Actuator
Power

Whether or not
electric throttle
control system
power inputted/ ON
or OFF

ON: Idling

-

+BM Voltage

+BM voltage/ Min.:
0, Max.: 19.9

10 to 15 V: Idling

ETCS service data

Actuator Power
Supply

Actuator power
supply/ ON or OFF

ON: Idling

ETCS service data

Clutch Current

Clutch current/
Min.: 0 A, Max.:
2.49 A

-

-

Fail Safe Drive

Whether or not fail-
safe function
executed/ ON or
OFF

ON: ETCS has failed

-

Fail Safe Drive
(Main CPU)

Whether or not fail-
safe function
executed/ ON or
OFF

ON: ETCS has failed

-

Injector (Port)

Injection period of
the No. 1 cylinder/
Min.: 0 ms, Max.:
32.64 ms

2.0 to 4.0 ms: idling

-

Injection
Volum
(Cylinder 1)

Injection volume
(cylinder 1)/ Min.: 0
ml, Max.: 2.048 ml

0 to 0.5 ml

Quantity of fuel injection volume for
10 times

Fuel Press
Switching

Fuel press switching
valve status/Low or Actual alcohol

-

2009 Toyota Tundra

2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra