Toyota Tundra Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

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.

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.

(a) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Chassis / ABS/VSC/TRAC / Data List.

(g) According to the display on the Techstream, read the Data List.

ABS/VSC/TRAC

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

ABS Warning Light

ABS warning light

ON or OFF

ON: Warning light on

OFF: Warning light off

-

Brake Warning Light

Brake warning light

ON or OFF

ON: Warning light on

OFF: Warning light off

-

Stop Light SW

Stop light switch assembly

ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Parking Brake SW

Parking brake switch assembly

ON or OFF

ON: Parking brake applied

OFF: Parking brake released

-

Main Idle SW

Main idle switch

ON or OFF

ON: Accelerator pedal released

OFF: Accelerator pedal depressed

-

Brake Pedal Load Sensing SW

Brake Pedal Load Sensing Switch

ON or OFF

ON: Brake pedal depressed beyond the specified point

OFF: Brake pedal not depressed beyond the specified point

-

Gear Position

Gear position information

"P, N", R, 1st-10th, Fail or Not R

Actual gear position

-

Shift Lever Position

Shift lever position information

"P, N", R, D/M, 1st-6th/B or Fail

Actual shift lever position

-

Shift Information

Shift information

ON or OFF

ON: During gear change

OFF: Not during gear change

-

Inspection Mode

Inspection mode

Other or Inspect

Other: Normal mode

Inspect: Inspection mode

-

Number of IG ON(Inspection)

Number of times ignition switch turned to ON after entering inspection mode

Min.: 0, Max.: 255

-

-

Master Cylinder Sensor

Master cylinder pressure sensor reading

Min.: 0.00 V, Max.: 5.00 V

Brake pedal released: 0.20 to 0.40 V

Reading increases when brake pedal is depressed

Deceleration Sensor

Lateral acceleration sensor (GL1) reading

Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

During deceleration/acceleration: Changes continuously

Zero Point of Decele

Memorized zero value

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Deceleration Sensor2

Longitudinal acceleration sensor (GL2) reading

Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

During deceleration/acceleration: Changes continuously

Zero Point of Decele2

Memorized zero value

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Yaw Rate Sensor

Yaw rate sensor

Min.: -128°/s, Max.: 127°/s

Vehicle stopped: 0°/s

Turning right: -128 to 0°/s

Turning left: 0 to 127°/s

-

Zero Point of Yaw Rate

Memorized zero value

Min.: -128°, Max.: 127°

-

After completing zero point calibration: 0°

Steering Angle Sensor

Steering angle sensor

Min.: -3276.8°, Max.: 3276.7°

Turning left: Increases

Turning right: Decreases

-

Zero Point of Steering Angle

Memorized zero value

Min.: -3276.8°, Max.: 3276.7°

-

After steering angle sensor zero point calibration: 0°

Lateral G

Lateral G

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

During turning: Changes in proportion with lateral acceleration

Forward and Rearward G

Forward and rearward G

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

During acceleration/deceleration: Changes in proportion with acceleration

Yaw Rate Value

Yaw rate value

Min.: -128°/s, Max.: 127°/s

-

During turning: Changes in proportion with yaw

Steering Angle Value

Steering angle value

Min.: -3276.8°, Max.: 3276.7°

-

During steering operation: Changes in proportion with steering wheel rotation

Stop Light Relay

Stop light control relay (VSC ACC)

(STP2 terminal input)

ON or OFF

ON: Relay input on

OFF: Relay input off

-

Slip Indicator Light

Slip indicator light

ON or OFF

ON: Indicator light on

OFF: Indicator light off

-

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed

Maximum wheel speed sensor reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (203 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

FR Wheel Acceleration

Front wheel RH acceleration

Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

  • Displays a negative value during deceleration and a positive value during acceleration
  • During deceleration/acceleration: Changes continuously

FL Wheel Acceleration

Front wheel LH acceleration

Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

  • Displays a negative value during deceleration and a positive value during acceleration
  • During deceleration/acceleration: Changes continuously

RR Wheel Acceleration

Rear wheel RH acceleration

Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

  • Displays a negative value during deceleration and a positive value during acceleration
  • During deceleration/acceleration: Changes continuously

RL Wheel Acceleration

Rear wheel LH acceleration

Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

  • Displays a negative value during deceleration and a positive value during acceleration
  • During deceleration/acceleration: Changes continuously

Stop Light Relay Output

Stop light control relay (VSC ACC)

(STPO terminal output)

ON or OFF

ON: Relay output on

OFF: Relay output off

-

FR Wheel ABS Ctrl Status

Front wheel RH ABS control status

ON or OFF

ON: During control

-

FL Wheel ABS Ctrl Status

Front wheel LH ABS control status

ON or OFF

ON: During control

-

RR Wheel ABS Ctrl Status

Rear wheel RH ABS control status

ON or OFF

ON: During control

-

RL Wheel ABS Ctrl Status

Rear wheel LH ABS control status

ON or OFF

ON: During control

-

FR Wheel EBD Ctrl Status

Front wheel RH EBD control status

ON or OFF

ON: During control

-

FL Wheel EBD Ctrl Status

Front wheel LH EBD control status

ON or OFF

ON: During control

-

RR Wheel EBD Ctrl Status

Rear wheel RH EBD control status

ON or OFF

ON: During control

-

RL Wheel EBD Ctrl Status

Rear wheel LH EBD control status

ON or OFF

ON: During control

-

BA Ctrl Status

BA control status

ON or OFF

ON: During control

-

PBA Ctrl Status

PBA control status

ON or OFF

ON: During control

-

TRC(TRAC) Ctrl Status

TRAC control status

ON or OFF

ON: During control

-

TRC(TRAC) Engine Ctrl Status

TRAC engine control status

ON or OFF

ON: During control

-

TRC(TRAC) Brake Ctrl Status

TRAC brake control status

ON or OFF

ON: During control

-

FR Wheel VSC Ctrl Status

Front wheel RH VSC control status

ON or OFF

ON: During control

-

FL Wheel VSC Ctrl Status

Front wheel LH VSC control status

ON or OFF

ON: During control

-

RR Wheel VSC Ctrl Status

Rear wheel RH VSC control status

ON or OFF

ON: During control

-

RL Wheel VSC Ctrl Status

Rear wheel LH VSC control status

ON or OFF

ON: During control

-

Engine Revolutions

Engine speed

Min.: 0 rpm, Max.: 65535 rpm

Engine stopped: 0 rpm

When engine speed is constant: No large fluctuations

Real Engine Torque

Real engine torque

Min.: -1024 Nm, Max.: 1023 Nm

-

-

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle

Min.: 0.0%, Max.: 127.5%

Accelerator pedal released: 0.0%

During accelerator pedal operation: Changes in proportion with the pedal movement

Solenoid Relay

ABS solenoid relay

ON or OFF

ON: ABS solenoid relay on

OFF: ABS solenoid relay off

-

ECB Motor Relay

ABS motor relay

ON or OFF

ON: ABS motor relay on

OFF: ABS motor relay off

  • Not applicable to this vehicle
  • ECB: Electronically Controlled Brake

TR(A)C/VSC Solenoid (SRM2)

Master cut solenoid (SRM2)

ON or OFF

ON: During control

-

TR(A)C/VSC Solenoid (SRM1)

Master cut solenoid (SRM1)

ON or OFF

ON: During control

-

TR(A)C/VSC Solenoid (SRC2)

Master cut solenoid (SRC2)

ON or OFF

ON: During control

-

TR(A)C/VSC Solenoid (SRC1)

Master cut solenoid (SRC1)

ON or OFF

ON: During control

-

ABS Solenoid (SFRH)

ABS solenoid (SFRH)

ON or OFF

ON: During control

-

ABS Solenoid (SFRR)

ABS solenoid (SFRR)

ON or OFF

ON: During control

-

ABS Solenoid (SFLH)

ABS solenoid (SFLH)

ON or OFF

ON: During control

-

ABS Solenoid (SFLR)

ABS solenoid (SFLR)

ON or OFF

ON: During control

-

ABS Solenoid (SRRH)

ABS solenoid (SRRH)

ON or OFF

ON: During control

-

ABS Solenoid (SRRR)

ABS solenoid (SRRR)

ON or OFF

ON: During control

-

ABS Solenoid (SRLH)

ABS solenoid (SRLH)

ON or OFF

ON: During control

-

ABS Solenoid (SRLR)

ABS solenoid (SRLR)

ON or OFF

ON: During control

-

EFI Communication Open

ECM communication open detection

Error or Normal

Error: Momentary interruption detected

Normal: Momentary interruption not detected

After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".

Yaw Rate Open

Yaw rate sensor open detection

Error or Normal

Error: Momentary interruption detected

Normal: Momentary interruption not detected

After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".

Deceleration Open

Acceleration sensor open detection

Error or Normal

Error: Momentary interruption detected

Normal: Momentary interruption not detected

After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".

Steering Open

Steering angle sensor open detection

Error or Normal

Error: Momentary interruption detected

Normal: Momentary interruption not detected

After a momentary interruption occurs, if there is no momentary interruption for 1 second, it switches from "Error" to "Normal".

BS1 Voltage Value

+BS voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to battery voltage

MT Voltage Value

Motor voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to battery voltage

TRAC/VSC Off Mode

TRAC/VSC off mode

Normal, TRC OFF or VSC OFF

Normal: Normal mode

TRC OFF: TRAC off mode

VSC OFF: VSC off mode

-

Number of DTC

Number of DTC recorded

Min.: 0, Max.: 255

-

-

IG Voltage Value Decreased

+BS voltage value decrease detection

Error or Normal

Error: Low voltage detected

Normal: Low voltage not detected

  • After low voltage occurs, if there is no low voltage error for 1 second, it switches from "Error" to "Normal".
  • Error: 9.8 V or less

IG Voltage Value Increased

+BS voltage value increase detection

Error or Normal

Error: High voltage detected

Normal: High voltage not detected

  • After high voltage occurs, if there is no high voltage error for 1 second, it switches from "Error" to "Normal".
  • Error: 17.4 V or higher

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) Warm up the engine.

(b) Turn the ignition switch off.

(c) Connect the Techstream to the DLC3.

(d) Turn the ignition switch to ON.

(e) Turn the Techstream on.

(f) Enter the following menus: Chassis / ABS/VSC/TRAC / Active Test.

(g) According to the display on the Techstream, perform the Active Test.

ABS/VSC/TRAC

Tester Display

Measurement Item

Control Range

Diagnostic Note

ABS Warning Light

ABS warning light

Warning light OFF/ON

Observe combination meter assembly

Brake Warning Light

Brake warning light

Warning light OFF/ON

Observe combination meter assembly

Auto LSD indicator loight

Auto LSD indicator loight

Indicator light OFF/ON

Observe combination meter assembly

Motor Relay

ABS motor relay

Relay OFF/ON

Operating sound of motor can be heard

Stop Light Relay

Stop light control relay (VSC ACC)

Relay OFF/ON

Stop lights come on

ABS Solenoid (SRLR)

ABS solenoid (SRLR)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SRLH)

ABS solenoid (SRLH)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SRRR)

ABS solenoid (SRRR)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SRRH)

ABS solenoid (SRRH)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SFLR)

ABS solenoid (SFLR)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SFLH)

ABS solenoid (SFLH)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SFRR)

ABS solenoid (SFRR)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

ABS Solenoid (SFRH)

ABS solenoid (SFRH)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

VSC/TRAC Solenoid (SRMR)

Master cut solenoid (SRM2)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

VSC/TRAC Solenoid (SRMF)

Master cut solenoid (SRM1)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

VSC/TRAC Solenoid (SRCR)

Master cut solenoid (SRC2)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

VSC/TRAC Solenoid (SRCF)

Master cut solenoid (SRC1)

Solenoid ON/OFF

Operation sound of solenoid (clicking sound) can be heard

TRC(TRAC) OFF Indicator Light

TRAC OFF indicator light

Indicator light OFF/ON

Observe combination meter assembly

VSC OFF Indicator Light

VSC OFF indicator light

Indicator light OFF/ON

Observe combination meter assembly

Slip Indicator Light

Slip Indicator light

Indicator light OFF/ON

Observe combination meter assembly

ABS Solenoid

ABS solenoid (SRLR, SRLH, SRRR, SRRH, SFLR, SFLH, SFRR, SFRH)

Solenoid SRLR/SRLH/SRRR/

SRRH/SFLR/SFLH/SFRR/SFRH

Operation sound of solenoid (clicking sound) can be heard

VSC/TRC(TRAC) Solenoid

Master cut solenoid (SRM1, SRM2, SRC1, SRC2)

Solenoid SRMF/SRMR/SRCF/

SRCR/SMF/SMR/SPFR/SPFL

Operation sound of solenoid (clicking sound) can be heard

    Check For Intermittent Problems

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