Toyota Tundra Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

READ DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Cruise Control / Data List.

(e) Read the Data List according to the display on the Techstream.

HINT:

  • If any DTCs are output, the value for a measurement item may be incorrect.
  • If any DTCs are output, perform troubleshooting accordingly. After repair, confirm relevant values using the Data List.

Powertrain > Cruise Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Cruise Vehicle Speed

Vehicle speed

Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

Actual vehicle speed

-

Cruise Memory Vehicle Speed

Stored vehicle speed

Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)

Stored vehicle speed

-

Cruise Request Throttle Opening Angle

Cruise requested position

0.00 to 124.99 deg

When cruise is set (vehicle in motion at 80 km/h (50 mph)): Actual requested throttle position

-

Vehicle Acceleration

Acceleration condition while driving the vehicle

-13.10 to 13.10 m/s2

Current value displayed

-

Cruise Target Acceleration

Target acceleration while in cruise control mode

-13.10 to 13.10 m/s2

Current value displayed

-

Driving Support ECU Target Acceleration

Target acceleration of driving support ECU

-13.10 to 13.10 m/s2

-

This item is displayed on the Techstream but is not used.

Acceleration Continuation Decision

Acceleration continuation decision condition

ON or OFF

-

This item is displayed on the Techstream but is not used.

Output Driving Force

Generated drive torque

-10.00 to 9.92 kN

-

This item is displayed on the Techstream but is not used.

Cruise Request Driving Force

Cruise request torque signal

-10.00 to 9.92 kN

Differs according to the cruise control system condition

-

Cruise Request Driving Force Feedback Status

Cruise request driving force feedback mode

No Control, Suspend, Neg Calc Prohibited, Pos Calc Prohibited, Normal or Increasing at Start

-

This item is displayed on the Techstream but is not used.

Cruise Control Permission Condition

Cruise control system condition

OK or NG

-

This item is displayed on the Techstream but is not used.

Cruise Control Condition

Cruise control system active condition

No Control, Constant Speed Control Mode - Ready, Constant Speed Control Mode - Controlling, Vehicle Distance Control Mode - Ready, Vehicle Distance Control Mode -Controlling, Termination Control, Suspend or Abnormal Stop

-

This item is displayed on the Techstream but is not used.

Cruise Control Mode

Cruise control mode condition

No Control, Constant Speed Control Mode, Vehicle Distance Control Mode (All Speed) or Vehicle Distance Control Mode

No Control: Cruise control mode not operating Constant Speed Control Mode: Constant speed control mode operating

-

Cruise Request Gear Position

Shift request from ECM

None or 255 Gear

Shift request from cruise control system

-

Cruise Acceleration and Deceleration Operation Condition

Cruise acceleration and deceleration operation condition

No Control, Constant Speed Control Mode - Standby, Constant Speed Control Mode - RES SW Control, Constant Speed Control Mode - ACC SW Control, Constant Speed Control Mode -COAST SW Control, Constant Speed Control Mode - Tap Down Control, Constant Speed Control Mode - Tap Up Control, Vehicle Distance Control Mode - Vehicle Stop, Vehicle Distance Control Mode - Standby, Vehicle Distance Control Mode - Acceleration Operation or Vehicle Distance Control Mode - Deceleration Operation

-

This item is displayed on the Techstream but is not used.

Cancel Switch

CANCEL switch status

ON or OFF

ON: CANCEL switch on

OFF: CANCEL switch off

-

-SET Switch

-SET switch status

ON or OFF

ON: -SET switch on

OFF: -SET switch off

-

+RES Switch

+RES switch status

ON or OFF

ON: +RES switch on

OFF: +RES switch off

-

Cruise Main Switch Operation Condition

Cruise control switch status

ON or OFF

ON: Cruise control switch pushed

OFF: Cruise control switch not pushed

-

Cruise Ready Main-CPU

Cruise control system standby condition

ON or OFF

Each time cruise control main switch (ON-OFF button) is pushed, ON or OFF changes

-

Cruise Ready Sub-CPU

Cruise control system standby condition

ON or OFF

Each time cruise control main switch (ON-OFF button) is pushed, ON or OFF changes

-

Accelerator Pedal

Condition of the accelerator pedal during cruising

ON or OFF

ON: Accelerator pedal depressed

OFF: Accelerator pedal released

-

Stop Light Switch Sub-CPU

Stop light switch signal

ON or OFF

-

This item is displayed on the Techstream but is not used.

Request Manual Cancel

Whether there is a manual cancel request

ON or OFF

-

This item is displayed on the Techstream but is not used.

Request Automatic Cancel

Whether there is an automatic cancel request

ON or OFF

-

This item is displayed on the Techstream but is not used.

Cruise Brake Control Decision

Cruise brake control decision

ON or OFF

ON: Cruise brake activated

OFF: Cruise brake deactivated

-

Cruise Brake Control Permission Condition

Cruise brake control permission condition

OK or NG

-

This item is displayed on the Techstream but is not used.

Cruise Indicator

Cruise control indicator status

ON or OFF

ON: Cruise control indicator illuminates

OFF: Cruise control indicator turns off

-

Wheel Speed Sensor and Deceleration Sensor

Speed sensor signal and deceleration sensor signal condition

Avail or Not Avl

Avail: Speed sensor signal and deceleration sensor signal available

Not Avl: Speed sensor signal and deceleration sensor signal not available

-

Gradient of Road Surface

Gradient of road surface condition

-32.76 to 32.76 m/s2

-

This item is displayed on the Techstream but is not used.

Brake Cancel Switch

Stop light switch status

ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

PERFORM ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

HINT:

The ignition switch must be turned ON to perform the Active Test using the Techstream.

Body Electrical > Combination Meter > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Meter Display 1

Multi-information display

OFF or All

-

    Cruise SET Indicator Light Circuit

    Diagnosis System

    See More:

    Toyota Tundra Service Manual > Air Conditioning System(for Manual Air Conditioning System): Air Inlet Damper Control Servo Motor Circuit (B1442/42)
    DESCRIPTION The air inlet damper servo motor sends pulse signals to inform the air conditioning amplifier of the damper position. The air conditioning amplifier activates the motor (normal, reverse) based on the signals to move the air inlet damper to any position, which controls the intake air sett ...

    Toyota Tundra Owners Manual

    Toyota Tundra Service Manual

    © 2021 Copyright www.ttundra.com
    0.0203