Toyota Tundra Service Manual: Data List / Active Test

Toyota Tundra Service Manual / Engine, Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Data List / Active Test

DATA LIST / ACTIVE TEST

READ DATA LIST

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

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 to ON.

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Radar Cruise1*1 or Radar Cruise2*2 / Data List.

  • *1: Output from the ECM
  • *2: Output from the millimeter wave radar sensor assembly

(e) Radar Cruise 1:

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 > Radar Cruise1 > 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 to 124.99°

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

-13.1 to 13.1 m/s2

Current value displayed

-

Cruise Target Acceleration

Target acceleration while in cruise control mode

-13.1 to 13.1 m/s2

Current value displayed

-

Driving Support ECU Target Acceleration

Target acceleration of driving support ECU

-13.1 to 13.1 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

-10.0 to 9.92 kN

-

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

Cruise Request Driving Force

Cruise request torque signal

-10.0 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 or Constant Speed Control Mode, Vehicle Distance Control Mode

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

Vehicle Distance Control Mode: Vehicle distance 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 main switch (ON-OFF button) status

ON or OFF

ON: Cruise control main switch (ON-OFF button) pushed

OFF: Cruise control main switch (ON-OFF button) 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

-

-

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

-

(f) Radar Cruise 2:

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 > Radar Cruise2 > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Cruise Control Main Switch

Cruise control switch signal

ON or OFF

ON: Cruise control main switch (ON-OFF button) pushed

OFF: Cruise control main switch (ON-OFF button) not pushed

-

Distance Control Switch

Distance control switch signal

ON or OFF

ON: Distance control switch on

OFF: Distance control switch off

-

Cruise Control Mode

Cruise control mode signal

Hi Spd or Normal

Hi Spd: Vehicle-to-vehicle distance control mode

Normal: Constant speed mode

-

Vehicle Distance

Distance to preceding vehicle

Min.: 0 m (0 ft.), Max.: 255 m (836.65 ft.)

Actual distance to vehicle

-

Vhcl Spd-Brake ECU

Vehicle speed from skid control ECU

Min.: -327.0 km/h (-203 mph), Max.: 327.0 km/h (204 mph)

Actual vehicle speed

-

Vehicle Acceleration

Vehicle acceleration

Min.: -5.00 m/s2, Max.: 5.00 m/s2

Actual vehicle acceleration

-

Closed Throttle Position

Accelerator pedal idle position signal

ON or OFF

ON: Accelerator pedal released

OFF: Accelerator pedal depressed

-

Yaw Rate Sensor

Yaw rate value

Min.: -100.00 deg/s,

Max.: 100.00 deg/s

Actual yaw rate value

-

Forward Vhcl Relative Spd

Vehicle ahead relative speed

Min.: -128 m/s, Max.: 127 m/s

Actual vehicle ahead relative speed

-

Vehicle Approach Warning

Forward vehicle approach warning signal

ON or OFF

ON: Forward vehicle approaching

OFF: Forward vehicle not approaching

-

CCS System Check

Dynamic radar cruise control system warning indication

ON or OFF

ON: Dynamic radar cruise control system warning indication (Malfunction detected)

OFF: Dynamic radar cruise control system warning indication (Malfunction not detected)

-

FRS-Dirt

History of dirt detected on millimeter wave radar sensor assembly

ON or OFF

ON: History of dirt detected on millimeter wave radar sensor assembly

OFF: No history of dirt detected on millimeter wave radar sensor assembly

-

Bad Wthr Hist(F Radar Sen)

History of millimeter wave radar sensor assembly detecting bad weather

ON or OFF

ON: History of millimeter wave radar sensor assembly detecting bad weather

OFF: No history of millimeter wave radar sensor assembly detecting bad weather

-

Frnt Radar Sens Temp Hi

Millimeter wave radar sensor assembly high temperature abnormality

ON or OFF

ON: Millimeter wave radar sensor assembly abnormal

OFF: Millimeter wave radar sensor assembly normal

-

Front Radar Voltage

Millimeter wave radar sensor assembly low voltage abnormality

Normal or Low

Low: Millimeter wave radar sensor assembly abnormal

Normal: Millimeter wave radar sensor assembly normal

If the engine starts 1 second or more after the ignition switch was turned to ON, this item may change to Low.

Driving Support ECU Destination Variation No

Destination variation number for driving support ECU assembly

Variation number or Not Available

Actual variation number

-

Destination Variation No

Destination variation number

Variation number or Not Available

Actual variation number

-

Steering Angle

Steering angle sensor signal

Min.: -3072.0 deg,

Max.: 3070.5 deg

Increase: Turning left

Decrease: Turning right

-

Zero Point Angle Sens

Zero point steering angle sensor

Min.: -3072.0 deg,

Max.: 3070.5 deg

Actual zero point steering angle

-

# Codes

Number of DTC

Min.: 0, Max.: 255

Actual number of DTCs

-

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 to 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 to 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

-

(f) Enter the following menus: Powertrain / Radar Cruise 2 / Active Test.

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

HINT:

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

Powertrain > Radar Cruise2 > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Radar Cruise Stop Buzzer

Skid control buzzer assembly (stop sound)

ON or OFF

Buzzer can be heard

Radar Cruise Approach Alarm Buzzer

Skid control buzzer assembly (approach sound)

ON or OFF

Buzzer can be heard
    Cruise SET Indicator Light Circuit

    Diagnosis System

    See More:

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