Toyota Tundra. Manual — part 1496

ACTIVE TEST REFERENCE

Tester Display

Test Part

Control Range

Diagnostic Note

Control the
Injection Volume

Change injection
volume

Between -12.5%
and 24.8%



All injectors tested at the same
time.



Perform test at or less 3000
RPM.



Injection volume can be changed
in 1% graduations within control
range.

Control the
Injection Volume
for A/F Sensor

Change injection
volume

Lower by -12.5%
or increase 25%



Perform test at or less 3000
RPM.



Control the Injection Volume for
A/F Sensor enables checking and
graphing of A/F (Air Fuel Ratio)
sensor voltage outputs.



To conduct test, enter the
following menus: Active
Test/Control the Injection
Volume for A/F Sensor/AFS
Voltage B1 S1 and O2S B1 S2
or AFS Voltage B2 S1 and O2S
B2 S2.

Activate the VSV
for Secondary Air
Control

Activate the
Secondary Air
System

ON/OFF



Do not perform test for 5
seconds or more.



After test, do not perform test
again for 30 seconds.

Activate the VSV
for Intake Control

Activate VSV for
intake control

ON/OFF

-

Activate the VSV
for Evap Control

Activate purge VSV
control

ON/OFF

-

Control the A/C
Cut Signal

Control A/C cut
signal

ON/OFF

-

Control the Fuel
Pump/Speed

Activate fuel pump

ON/OFF

Engine is stopped.

Connect the TC
and TE1

Turn on and off TC
and TE1 connection

ON/OFF



ON: TC and TE1 connected.



OFF: TC and TE1 disconnected.

Control the Idle
Fuel Cut Prohibit

Prohibit idling fuel
cut control

ON/OFF

-

Prohibit the
Catalyst OT
Misfire prevent
F/C

Prohibit catalyst
overheat
malfunction
prevention fuel cut
operation during

ON: Fuel cut is
prohibited

Confirm that the Vehicle is Stopped
and Engine Speed is 3000 RPM or less.

2009 Toyota Tundra

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

misfire

Activate the
Starter Relay

Activate the starter
relay

ON/OFF

Engine is stopped.

Activate the ACC
Cut Relay

Activate the ACC
CUT relay

ON/OFF

Engine is stopped.

Control the ETCS
Open/Close Slow
Speed

Throttle actuator

Close/Open
Open: throttle
valve opens
slowly

This test is possible when the following
conditions are met:



Ignition switch ON.



Engine does not start.



Fully depressing accelerator
pedal (APP: 58 degrees or more).



Shift lever in P.

Control the ETCS
Open/Close Fast
Speed

Throttle actuator

Close/Open
Open: throttle
valve opens fast

Same as above.

Control the VVT
Linear (Bank 1)

Control Variable
Valve Timing
(VVT) [Bank 1]

-128 to 127%
This value added
to present OCV
control duty



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible during idle.

Control the VVT
System (Bank 1)

Turn on and off Oil
Control Valve
(OCV)

ON/OFF



Engine stalls or idles roughly
when OCV turned ON.



Normal engine running or idling
when OCV OFF.

Control the VVT
Linear (Bank 2)

Control Variable
Valve Timing
(VVT) [Bank 2]

-128 to 127%
This value added
to present OCV
control duty



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible during idle.

Control the VVT
System (Bank 2)

Turn on and off Oil
Control Valve
(OCV)

ON/OFF



Engine stalls or idles roughly
when OCV turned ON.



Normal engine running or idling
when OCV OFF.

Control the VVT
Exhaust Linear
(Bank 1)

Control VVT (Bank
1)

-128 to 127%
This value added
to present OCV
control duty



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible while engine
idling.

Control the VVT
Exhaust Linear
(Bank 2)

Control VVT (Bank
2)

-128 to 127%
This value added
to present OCV
control duty



Engine stall or rough idle when
VVT actuator operated by 100%.



Test possible while engine
idling.

Activate the
Vacuum Pump

Activate vacuum
pump (built into
canister pump

ON/OFF

-

2009 Toyota Tundra

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

module)

Activate the VSV
for Vent Valve

Activate vent valve
(built into canister
pump module)

ON/OFF

-

Activate the Fuel
Pressure
Switching Valve

Activate fuel
pressure switching
valve

Low/High

Vehicle is stopped.

Control the
Cylinder #1 Fuel
Cut

Cylinder #1 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #2 Fuel
Cut

Cylinder #2 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #3 Fuel
Cut

Cylinder #3 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #4 Fuel
Cut

Cylinder #4 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #5 Fuel
Cut

Cylinder #5 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #6 Fuel
Cut

Cylinder #6 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #7 Fuel
Cut

Cylinder #7 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the
Cylinder #8 Fuel
Cut

Cylinder #8 injector
fuel cut

ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Control the All
Cylinders Fuel Cut

All cylinder fuel cut ON/OFF

Test possible while vehicle stopped
and engine idling*1.

Check the
Cylinder
Compression*2

Check the cylinder
compression
pressure

ON/OFF

Fuel injection and ignition stop in all
cylinders.

NOTE:



If the display of the Data List's Catalyst OT MF F/C item is Not Avl, perform this Active
Test with the vehicle stopped and the engine idling.



If the display of the Data List's Catalyst OT MF F/C item is Avail, perform this Active Test
as described below.

a. Stop the engine and turn the ignition switch to ON to turn Control the Cylinder#1

Fuel Cut (to Control the Cylinder#8 Fuel Cut) ON.

b. Start the engine.

HINT:

2009 Toyota Tundra

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

In this Active Test, the fuel and ignition of all cylinders is cut, and cranking occurs for
approximately 10 seconds. Then, each cylinder measures the engine speed. If a cylinder's engine
speed is higher than the other, that cylinder's compression pressure is compared to the other, and
whether or not the compression pressure is low can be determined.

1. Warm up the engine.

2. Turn the ignition switch off.

3. Connect the Techstream to the DLC3.

4. Turn the ignition switch to ON and turn the Techstream ON.

5. Enter the following menus: Powertrain/Engine and ECT/Active Test/Check the Cylinder

Compression.

HINT:

To display the entire Data List, press the pull down menu button next to Primary. Then select
Compression.

6. While the engine is not running, press the RIGHT or LEFT button to change the Check the

Cylinder Compression to ON.

HINT:

After performing the above procedure, the Active Test's Check the Cylinder Compression
will start. Fuel injection for all cylinders is prohibited, and each cylinder's engine speed
measurement will enter standby.

7. Fully open the throttle.

8. Crank the engine for about 10 seconds.

9. Monitor the engine speed (Engine Speed of Cyl #1 to #8) displayed on the Techstream.

HINT:

At first, the Techstream display will show each cylinder's engine speed measurement to be
extremely high. After approximately 10 seconds of engine cranking, each cylinder's engine
speed measurement will change to the actual engine speed.

*2: When cranking the engine, each cylinder measures the engine speed.

NOTE:



When the Check the Cylinder Compression test is OFF and
the engine is cranked, the engine will start.



If the Check the Cylinder Compression test needs to be
performed after it is turned ON and performed once, press
Exit to return to the Active Test menu screen. Then
perform the Check the Cylinder Compression test again.

2009 Toyota Tundra

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