Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

1. 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) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

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

(f) 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

OFF

-

Brake Warning Light

Brake warning light/ ON or OFF

OFF

-

Buzzer

VSC warning buzzer/ ON or OFF

ON: Buzzer on

OFF: Buzzer off

-

Stop Light SW

Stop light switch/ ON or OFF

ON: Brake pedal depressed

OFF: Brake pedal released

-

Parking Brake SW

Parking brake switch/ ON or OFF

ON: Parking brake applied

OFF: Parking brake released

-

Reservoir Warning SW

Brake fluid level warning switch/ ON or OFF

OFF

-

Main Idle SW

Main idle switch/ ON or OFF

ON: Accelerator pedal released

OFF: Accelerator pedal depressed

-

Gear Position

Gear position/ Fail, 1st-10th, P/N, R or Not R

Actual gear position

-

Shift Lever Position

Shift lever position/ Fail, 1st-6th/B, D/M, P/N or R

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 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

0.3 to 0.9 V: When brake pedal released

The value increases when the brake pedal is depressed.

Zero Point of M/C

Memorized zero value/ Min.: -12.50 MPa, Max.: 12.40 MPa

-

-

Accumulator Sensor

Accumulator pressure sensor reading/ Min.: 0.00 V, Max.: 5.00 V

3.58 to 5 V

If the value is constant regardless of the pump operation, an accumulator pressure sensor malfunction is suspected.

Deceleration Sensor

Acceleration sensor reading/ Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

Changes continuously during acceleration/deceleration.

Zero Point of Decele

Memorized zero value/ Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Deceleration Sensor2

Acceleration sensor 2 reading/ Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

Changes continuously during acceleration/deceleration.

Zero Point of Decele2

Memorized zero value/ Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Yaw Rate Sensor

Yaw rate and acceleration sensor 1/ Min.: -128 °/s, Max.: 127 °/s

0 °/s: Vehicle stationary

-128 to 0 °/s: Right turn

0 to 127 °/s: Left turn

-

Zero Point of Yaw Rate

Memorized zero value/ Min.: -128 °, Max.: 127 °

-

-

Zero Point of Yaw Rate2

Memorized zero value/ Min.: -128 °/s, Max.: 127 °/s

-

-

Steering Angle Sensor

Steering angle sensor/ Min.: -3276.8 °, Max.: 3276.7 °

Left turn: Increases

Right turn: Decreases

-

Zero Point of Steering Angle

Memorized zero value/ Min.: -3276.8 °, Max.: 3276.7 °

-

-

Lateral G

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

-

Changes in proportion with acceleration during turning.

Forward and Rearward G

Forward and rearward G/ Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

Changes in proportion with acceleration during acceleration/deceleration.

Yaw Rate Value

Yaw rate value/ Min.: -128 °/s, Max.: 127 °/s

-

Changes in proportion with yaw during turning.

Steering Angle Value

Steering angle value/ Min.: -3276.8 °, Max.: 3276.7 °

-

Changes in proportion with the amount of steering wheel rotation during steering operation.

Stop Light Relay

Stop light control relay (STOP LP)/ ON or OFF

ON: Relay on

OFF: Relay off

-

Crawl Control Light*2

Crawl indicator light/ ON or OFF

ON: Indicator light on

OFF: Indicator light off

-

Slip Indicator Light

Slip indicator light/ ON or OFF

ON: Indicator light on

OFF: Indicator light off

-

Rear Diff Lock Switch

Rear differential lock detection switch/ ON or OFF

ON: Rear differential lock detection switch on

OFF: Rear differential lock detection switch off

-

Automatic Disconnect Diff SW

A.D.D. actuator 4WD detection switch/ ON or OFF

ON: 4WD

OFF: 2WD

-

L4 Switch

Transfer L4 detection switch/ ON or OFF

ON: L4

OFF: except L4

-

FR Wheel Speed

Front wheel speed sensor RH reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Actual wheel speed

No large fluctuations when driving at a constant speed.

FL Wheel Speed

Front wheel speed sensor LH reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Actual wheel speed

No large fluctuations when driving at a constant speed.

RR Wheel Speed

Rear wheel speed sensor RH reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Actual wheel speed

No large fluctuations when driving at a constant speed.

RL Wheel Speed

Rear wheel speed sensor LH reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Actual wheel speed

No large fluctuations when driving at a constant speed.

Vehicle Speed

Maximum wheel speed sensor reading/ Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Actual vehicle speed

No large fluctuations when driving at a constant speed.

FR Wheel Acceleration

Front wheel acceleration RH/ Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

Changes continuously during acceleration/deceleration.

FL Wheel Acceleration

Front wheel acceleration LH/ Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

Changes continuously during acceleration/deceleration.

RR Wheel Acceleration

Rear wheel acceleration RH/ Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

Changes continuously during acceleration/deceleration.

RL Wheel Acceleration

Rear wheel acceleration LH/ Min.: -200.84 m/s2, Max.: 199.27 m/s2

-

Changes continuously during acceleration/deceleration.

FR Wheel Direction

Front wheel direction RH/ Forward or Back

Forward: Forward

Back: Backward

-

FL Wheel Direction

Front wheel direction LH/ Forward or Back

Forward: Forward

Back: Backward

-

RR Wheel Direction

Rear wheel direction RH/ Forward or Back

Forward: Forward

Back: Backward

-

RL Wheel Direction

Rear wheel direction LH/ Forward or Back

Forward: Forward

Back: Backward

-

Stop Light Relay Output

Stop light control relay (STOP LP) output/ ON or OFF

ON: Relay on (Stop light on)

OFF: Relay off (Stop light off)

-

Crawl Control Switch*2

Crawl speed selector switch status/ LOW, MIDLOW, MID, MIDHIGH or HIGH

Actual crawl speed selector switch position

-

Auto LSD Indicator Light

Auto LSD indicator light/ ON or OFF

ON: Indicator light on

OFF: Indicator light off

-

A-TRAC Indicator Light*1

A-TRAC indicator light/ ON or OFF

ON: Indicator light on

OFF: Indicator light off

-

FR Wheel ABS Ctrl Status

Front wheel RH ABS control status/ ON or OFF

ON: During control

OFF: Not during control

-

FL Wheel ABS Ctrl Status

Front wheel LH ABS control status/ ON or OFF

ON: During control

OFF: Not during control

-

RR Wheel ABS Ctrl Status

Rear wheel RH ABS control status/ ON or OFF

ON: During control

OFF: Not during control

-

RL Wheel ABS Ctrl Status

Rear wheel LH ABS control status/ ON or OFF

ON: During control

OFF: Not during control

-

RR Wheel EBD Ctrl Status

Rear wheel RH EBD control status/ ON or OFF

ON: During control

OFF: Not during control

-

RL Wheel EBD Ctrl Status

Rear wheel LH EBD control status/ ON or OFF

ON: During control

OFF: Not during control

-

BA Ctrl Status

BA control status/ ON or OFF

ON: During control

OFF: Not during control

-

PBA Ctrl Status

PBA control status/ ON or OFF

ON: During control

OFF: Not during control

-

TRC (TRAC) Ctrl Status

Traction control status/ ON or OFF

ON: During control

OFF: Not during control

-

TRC (TRAC) Engine Ctrl Status

Traction control (engine control) status/ ON or OFF

ON: During control

OFF: Not during control

-

TRC (TRAC) Brake Ctrl Status

Traction control (brake control) status/ ON or OFF

ON: During control

OFF: Not during control

-

FR Wheel VSC Ctrl Status

Front wheel RH VSC control status/ ON or OFF

ON: During control

OFF: Not during control

-

FL Wheel VSC Ctrl Status

Front wheel LH VSC control status/ ON or OFF

ON: During control

OFF: Not during control

-

RR Wheel VSC Ctrl Status

Rear wheel RH VSC control status/ ON or OFF

ON: During control

OFF: Not during control

-

RL Wheel VSC Ctrl Status

Rear wheel LH VSC control status/ ON or OFF

ON: During control

OFF: Not during control

-

Engine Revolutions

Engine speed/ Min.: 0 rpm, Max.: 65535 rpm

Actual engine speed

-

Real Engine Torque

Actual engine torque/ Min.: -1024.0 Nm, Max.: 1023.0 Nm

-

-

Accelerator Opening Angle %

Percentage of accelerator pedal opening angle/ Min.: 0.0 %, Max.: 127.5 %

0 %: When accelerator pedal released

Changes in proportion with the movement of the pedal during accelerator pedal operation.

Solenoid Relay

Solenoid relay/ ON or OFF

ON: Solenoid relay on

OFF: Solenoid relay off

-

ECB (Electronically Controlled Brake system) Motor Relay

ECB (Electronically Controlled Brake) motor relay/ ON or OFF

ON: Motor relay on

OFF: Motor relay off

-

TR(A)C/VSC Solenoid (SRM2)

TRAC/VSC solenoid (STR)/ ON or OFF

ON: Operating

OFF: Not operating

-

TR(A)C/VSC Solenoid (SRM1)

TRAC/VSC solenoid (SREC)/ ON or OFF

ON: Operating

OFF: Not operating

-

TR(A)C/VSC Solenoid (SRC2)

TRAC/VSC solenoid (SREA)/ ON or OFF

ON: Operating

OFF: Not operating

-

TR(A)C/VSC Solenoid (SRC1)

TRAC/VSC solenoid (SMCF)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SFRH)

ABS solenoid (SFRH)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SFRR)

ABS solenoid (SFRR)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SFLH)

ABS solenoid (SFLH)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SFLR)

ABS solenoid (SFLR)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SRRH)

ABS solenoid (SRRH)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SRRR)

ABS solenoid (SRRR)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SRLH)

ABS solenoid (SRLH)/ ON or OFF

ON: Operating

OFF: Not operating

-

ABS Solenoid (SRLR)

ABS solenoid (SRLR)/ ON or OFF

ON: Operating

OFF: Not operating

-

FR Speed Open

Front speed sensor RH open circuit detection/ Error or Normal

Normal

-

FL Speed Open

Front speed sensor LH open circuit detection/ Error or Normal

Normal

-

RR Speed Open

Rear speed sensor RH open circuit detection/ Error or Normal

Normal

-

RL Speed Open

Rear speed sensor LH open circuit detection/ Error or Normal

Normal

-

EFI Communication Open

ECM communication open circuit detection/ Error or Normal

Normal

-

Yaw Rate Open

Yaw rate and acceleration sensor open circuit detection/ Error or Normal

Normal

-

Deceleration Open

Acceleration sensor open circuit detection/ Error or Normal

Normal

-

Steering Open

Steering angle sensor open circuit detection/ Error or Normal

Normal

-

Master Cylinder Open

Master cylinder pressure sensor open circuit detection/ Error or Normal

Normal

-

IG1 Voltage Value

IG1 voltage value/ Min.: 0.00 V, Max.: 20.00 V

11 to 14 V

Changes in proportion to battery voltage

IG2 Voltage Value

IG2 voltage value/ Min.: 0.00 V, Max.: 20.00 V

11 to 14 V

Changes in proportion to battery voltage

TRAC/VSC Off Mode

TRAC/VSC off mode/ Normal, TRAC OFF, VSC Expert Mode or VSC OFF

Normal: Normal

TRAC OFF: TRAC OFF mode

VSC Expert Mode: VSC expert mode

VSC OFF: VSC OFF mode

-

Number of DTC

Number of DTCs/ Min.: 0, Max.: 255

0

-

IG Voltage Value Decreased

IG1 voltage value decreased/ Error or Normal

Normal

-

IG Voltage Value Increased

IG1 voltage value increased/ Error or Normal

Normal

-

FR Speed Sensor Voltage Open

Front speed sensor RH voltage open circuit detection/ Error or Normal

Normal

-

FL Speed Sensor Voltage Open

Front speed sensor LH voltage open circuit detection/ Error or Normal

Normal

-

RR Speed Sensor Voltage Open

Rear speed sensor RH voltage open circuit detection/ Error or Normal

Normal

-

RL Speed Sensor Voltage Open

Rear speed sensor LH voltage open circuit detection/ Error or Normal

Normal

-

M/C Pressure Sensor Noise

Master cylinder pressure sensor noise detection/ Error or Normal

Normal

-

Yaw Rate Sensor Voltage Open

Yaw rate and acceleration sensor voltage open circuit detection/ Error or Normal

Normal

-

EFI Communication Invalid

ECM communication invalid detection/ Error or Normal

Normal

-

A-TRC(TRAC) Switch*1

A-TRC(TRAC) Switch/ ON or OFF

ON: A-TRC switch on

OFF: A-TRC switch off

-

Operation History of IG OFF while Vehicle is moving

History of ignition switch turned off when vehicle is in motion/ON or OFF

OFF: No history

ON: History of ignition switch turned off with vehicle speed 3 km/h (2 mph) or higher

-

  • *1: for Manual transmission
  • *2: for Automatic transmission

2. 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) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

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

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

ABS/VSC/TRAC

Tester Display

Test Part

Control Range

Diagnostic Note

ABS Warning Light

ABS warning light

Warning light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

Brake Warning Light

BRAKE warning light

Warning light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

Buzzer

VSC warning buzzer

Buzzer OFF/ON

The buzzer can be heard.

[Vehicle condition]

Vehicle stopped

Solenoid Relay

Solenoid relay

Relay OFF/ON

An operating sound of the solenoid (clicking sound) can be heard.

[Vehicle condition]

Vehicle stopped

Motor Relay

Motor relay

Relay OFF/ON

An operating sound of the motor can be heard (does not come on for 2 to 5 seconds).

[Vehicle condition]

Vehicle stopped

Stop Light Relay

Stop light control relay (STOP LP CTRL)

Relay OFF/ON

Observe the stop light (does not come on for 2 to 5 seconds).

[Vehicle condition]

Vehicle stopped

ABS Solenoid (SRLR)

ABS solenoid (SRLR)

Solenoid OFF/ON

An operating sound of the solenoid (clicking sound) can be heard (does not come on for 2 to 5 seconds).

[Vehicle condition]

Vehicle stopped

Parking brake applied

Shift lever is in P (neutral)

ABS Solenoid (SRLH)

ABS solenoid (SRLH)

Solenoid OFF/ON

ABS Solenoid (SRRR)

ABS solenoid (SRRR)

Solenoid OFF/ON

ABS Solenoid (SRRH)

ABS solenoid (SRRH)

Solenoid OFF/ON

ABS Solenoid (SFLR)

ABS solenoid (SFLR)

Solenoid OFF/ON

ABS Solenoid (SFLH)

ABS solenoid (SFLH)

Solenoid OFF/ON

ABS Solenoid (SFRR)

ABS solenoid (SFRR)

Solenoid OFF/ON

ABS Solenoid (SFRH)

ABS solenoid (SFRH)

Solenoid OFF/ON

VSC/TRAC Solenoid (SRMR)

VSC/TRAC solenoid (STR)

Solenoid OFF/ON

An operating sound of the solenoid (clicking sound) can be heard (does not come on for 2 to 5 seconds).

[Vehicle condition]

Vehicle stopped

Parking brake applied

Shift lever is in P (neutral)

VSC/TRAC Solenoid (SRMF)

VSC/TRAC solenoid (SREC)

Solenoid OFF/ON

VSC/TRAC Solenoid (SRCR)

VSC/TRAC solenoid (SREA)

Solenoid OFF/ON

VSC/TRAC Solenoid (SRCF)

VSC/TRAC solenoid (SMCF)

Solenoid OFF/ON

Crawl Control Light*1

CRAWL indicator light

Indicator light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

TRC(TRAC) OFF Indicator Light

TRAC OFF indicator light

Indicator light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

VSC OFF Indicator Light

VSC OFF indicator light

Indicator light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

Slip Indicator Light

Slip indicator light

Indicator light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

Auto LSD Indicator Light

Auto LSD indicator light

Indicator light OFF/ON

Observe the combination meter.

[Vehicle condition]

Vehicle stopped

ABS Solenoid

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

Solenoid SFRH/SFRR/SFLH/SFLR/SRRH/SRRR/SRLH/SRLR

An operating sound of the solenoid (clicking sound) can be heard (does not come on for 2 to 5 seconds).

[Vehicle condition]

Vehicle stopped

Parking brake applied

Shift lever is in P (neutral)

VSC/TRC(TRAC) Solenoid

Master cut solenoid (STR, SREC, SREA, SMCF)

Solenoid SRCF/SRCR/SRMF/SRMR/SMF/SMR/SPFR/SPFL

  • *1: for Automatic transmission
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