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) 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: Powertrain / Transmission / Data List.

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

Transmission

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Vehicle Speed

Vehicle speed/

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

Actual vehicle speed

  • This is the current vehicle speed.
  • The vehicle speed is detected using the wheel speed sensors.
    • There is a delay in when the vehicle speed data is displayed.

      Therefore, even if the vehicle speed listed in the freeze frame data is 0 km/h (0 mph), this does not always mean that the malfunction occurred when the vehicle was stopped.

Engine Speed

Engine speed/

Min.: 0 rpm

Max.: 16383 rpm

550 to 650 rpm: Idling

When the crankshaft position sensor is malfunctioning, "Engine Speed" is approximately 0 rpm or varies greatly from the actual engine speed.

Calculate Load

Load calculated by ECM/

Min.: 0%

Max.: 100%

-

  • This is the engine load calculated based on the intake pressure.
  • Calculate Load = Actual intake manifold pressure / maximum intake manifold pressure x 100 (%) (For example, when the actual intake manifold pressure is the same as atmospheric pressure, Calculate Load is 100%.)

Coolant Temperature

Engine coolant temperature/

Min.: -40°C (-40°F)

Max.: 140°C (284°F)

75 to 100°C (167 to 212°F): After warming up

This is the engine coolant temperature.

HINT:

  • After warming up the engine, the engine coolant temperature is 75 to 100°C (167 to 212°F).
  • After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal.
  • If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted.
  • Check if the engine overheats when the value indicated is higher than 140°C (284°F).

Intake Air Temperature

Intake air temperature/

Min.: -40°C (-40°F)

Max.: 140°C (284°F)

Equivalent to ambient air temperature

  • After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature are approximately equal.
  • If the value is -40°C (-40°F), or 140°C (284°F), the sensor circuit is open or shorted.

Engine Run Time

Engine run time/

Min.: 0 sec

Max.: 65535 sec

Time after engine start

This is the time elapsed since the engine started.

HINT:

The time is counted only while the engine is running.

Battery Voltage

Battery voltage/

Min.: 0 V

Max.: 65.5 V

11 to 14 V: Idling

If 11 V or less, characteristics of some electrical components may change.

BATT Voltage

Battery voltage/

Min.: 0 V

Max.: 79.998 V

11 to 14 V: Idling

If 11 V or less, characteristics of some electrical components may change.

Throttle Position Sensor No.1 Voltage %

Absolute throttle position sensor (No. 1)/

Min.: 0%

Max.: 100%

  • 10 to 22%: Accelerator pedal fully released
  • 64 to 96%: Accelerator pedal fully depressed (engine running)

The No. 1 throttle position sensor output is converted using 5 V = 100%.

HINT:

If there are no throttle position sensor DTCs stored, it is possible to conclude that the throttle position sensor system is normal.

Starter SW

Starter signal/

ON or OFF

  • ON: Starter operating
  • OFF: Starter not operating

-

Neutral Position SW

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in P or N
  • OFF: Shift lever not in P or N

When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the park/neutral position switch or the shift cable may be incorrect.

HINT:

When the failure still occurs even after adjusting these parts, See page .

Stop Light SW

Stop light switch status/

ON or OFF

  • ON: Brake pedal depressed
  • OFF: Brake pedal released

-

Cruise Main SW

Status of Cruise Main SW/

ON or OFF

-

-

Complete Parts Monitor

Comprehensive component monitor/

Not Avl or Avail

-

-

Fuel System Monitor

Fuel system monitor/

Not Avl or Avail

-

-

Misfire Monitor

Misfire monitor/

Not Avl or Avail

-

-

EGR/VVT Monitor

EGR/VVT monitor/

Not Avl or Avail

-

-

EGR/VVT Monitor Result

EGR/VVT monitor/

Compl or Incmpl

-

-

A/F (O2) Sensor Heater Monitor

A/F (O2) sensor heater monitor/

Not Avl or Avail

-

-

A/F (O2) Sensor Heater Monitor Result

A/F (O2) sensor heater monitor/

Compl or Incmpl

-

-

A/F (O2) Sensor Monitor

A/F (O2) sensor monitor/

Not Avl or Avail

-

-

A/F (O2) Sensor Monitor Result

A/F (O2) sensor monitor/

Compl or Incmpl

-

-

Secondary Air Injection System Monitor

Secondary air injection system monitor/

Not Avl or Avail

-

-

Secondary Air Injection System Monitor Result

Secondary air injection system monitor/

Compl or Incmpl

-

-

EVAP Monitor

EVAP monitor/

Not Avl or Avail

-

-

EVAP Monitor Result

EVAP monitor/

Compl or Incmpl

-

-

Heated Catalyst Monitor

Heated catalyst monitor/

Not Avl or Avail

-

-

Heated Catalyst Monitor Result

Heated catalyst monitor/

Compl or Incmpl

-

-

Catalyst Monitor

Catalyst monitor/

Not Avl or Avail

-

-

Catalyst Monitor Result

Catalyst monitor/

Compl or Incmpl

-

-

Component Monitor ENA (Current)

Comprehensive component monitor

Unable or Enable

-

-

Component Monitor Result (Current)

Comprehensive component monitor

Compl or Incmpl

-

-

Fuel System Monitor ENA (Current)

Fuel system monitor

Unable or Enable

-

-

Fuel System Monitor Result (Current)

Fuel system monitor

Compl or Incmpl

-

-

Misfire Monitor ENA (Current)

Misfire monitor

Unable or Enable

-

-

Misfire Monitor Result (Current)

Misfire monitor

Compl or Incmpl

-

-

EGR/VVT Monitor ENA (Current)

EGR monitor

Unable or Enable

-

-

EGR/VVT Monitor Result (Current)

EGR monitor

Compl or Incmpl

-

-

O2 Sensor Heater ENA (Current)

O2S (A/FS) heater monitor

Unable or Enable

-

-

O2 Sensor Heater Monitor Result (Current)

O2S (A/FS) heater monitor

Compl or Incmpl

-

-

A/F (O2) Sensor Monitor ENA (Current)

O2S (A/FS) monitor

Unable or Enable

-

-

A/F (O2) Sensor Monitor Result (Current)

O2S (A/FS) monitor

Compl or Incmpl

-

-

Secondary Air Injection System Monitor ENA (Current)

Secondary air injection system monitor/

Unable or Enable

-

-

Secondary Air Injection System Monitor Result (Current)

Secondary air injection system monitor/

Compl or Incmpl

-

-

EVAP Monitor ENA (Current)

EVAP monitor

Unable or Enable

-

-

EVAP Monitor Result (Current)

EVAP monitor

Compl or Incmpl

-

-

Heated Catalyst Monitor ENA (Current)

Heated catalyst monitor/

Unable or Enable

-

-

Heated Catalyst Monitor Result (Current)

Heated catalyst monitor/

Compl or Incmpl

-

-

Catalyst Monitor ENA (Current)

Catalyst monitor/

Unable or Enable

-

-

Catalyst Monitor Result (Current)

Catalyst monitor/

Compl or Incmpl

-

-

TC Terminal

TC Terminal Status/

ON or OFF

-

-

MIL

MIL status/

ON or OFF

ON: MIL ON

-

MIL ON Run Distance

MIL ON run distance/

Min.: 0 km (0 mile)

Max.: 65535 km (40723 mile)

Distance after DTC detected

-

Running Time from MIL ON

Running time from MIL ON/

Min.: 0 minutes

Max.: 65535 minutes

Equivalent to running time after MIL ON

-

Time after DTC Cleared

Time after DTC cleared/

Min.: 0 minutes

Max.: 65535 minutes

Equivalent to time after DTCs cleared

-

Distance from DTC Cleared

Distance from DTC cleared/

Min.: 0 km (0 mile)

Max.: 65535 km (40723 mile)

Equivalent to time after DTCs cleared

-

Warmup Cycle Cleared DTC

Warm-up cycle after DTC cleared/

Min.: 0

Max.: 255

-

Number of warm-up cycles after DTCs cleared

OBD Requirements

OBD requirement/

-

-

-

Number of Emission DTC

Emission related DTCs/

Min.: 0

Max.: 127

-

-

Total Distance Traveled

Total distance traveled/

Min.: 0 km (0 mile)

Max.: 16777215 km (10425361 mile)

-

-

Accel Position from EFI

Absolute accelerator pedal position/

Min.: 0 %

Max.: 127.5 %

-

Value calculated by adding an adjustment value to the actual accelerator pedal position.

NT Sensor Speed

Input turbine speed/

Min.: 0 rpm

Max.: 12750 rpm

  • Lock-up on (after warming up the engine): Value from transmission revolution sensor (NT) equal to engine speed
  • Lock-up off (idling with shift lever in N): Value from transmission revolution sensor (NT) nearly equal to engine speed

Data is displayed in increments of 50 rpm.

Speed (SP2)

Output shaft speed/

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

0 km/h (0 mph): Vehicle stopped (equal to vehicle speed)

-

SP2 Sensor Voltage

Transmission revolution sensor (SP2) sensor voltage/

Min.: 0.000 V

Max.: 4.999 V

0.1 to 1.9 V: Engine idling

-

Shift SW Status (P Range)

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in P
  • OFF: Shift lever not in P

When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the park/neutral position switch or the shift cable may be incorrect.

HINT:

When the failure still occurs even after adjusting these parts, See page .

Shift SW Status (R Range)

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in R
  • OFF: Shift lever not in R

When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the park/neutral position switch or the shift cable may be incorrect.

HINT:

When the failure still occurs even after adjusting these parts, See page .

Shift SW Status (N Range)

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in N
  • OFF: Shift lever not in N

When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the park/neutral position switch or the shift cable may be incorrect.

HINT:

When the failure still occurs even after adjusting these parts, See page .

Shift SW Status (N, P Range)

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in P or N
  • OFF: Shift lever not in P or N

-

Shift SW Status (S Range)

Sport mode select switch status/

ON or OFF

  • ON: Shift lever in S, "+" or "-"
  • OFF: Shift lever not in S, "+" or "-"

-

Shift SW Status (D Range)

Park/neutral position switch status/

ON or OFF

  • ON: Shift lever in D, S, "+" or "-"
  • OFF: Shift lever not in D, S, "+" or "-"

When the shift lever position displayed on the Techstream differs from the actual position, adjustment of the park/neutral position switch or the shift cable may be incorrect.

HINT:

When the failure still occurs even after adjusting these parts, See page .

A/T Oil Temperature No. 1

No. 1 ATF temperature sensor value/

Min.: -40°C (-40°F)

Max.: 150°C (302°F)

  • Approx. 80°C (176°F): After stall test
  • Equal to ambient temperature when cold soak

If the value -40°C (-40°F) or 150°C (302°F), No. 1 ATF temperature sensor circuit is open or shorted.

A/T Oil Temperature No. 2

No. 2 ATF temperature sensor value/

Min.: -40°C (-40°F)

Max.: 150°C (302°F)

  • Approx. 80°C (176°F): After stall test
  • Equal to ambient temperature when cold soak

If the value -40°C (-40°F) or 150°C (302°F), No. 2 ATF temperature sensor circuit is open or shorted.

Torque Converter Temperature Raise History

Torque converter temperature raise history status/

Min.: 0

Max.: 255

-

-

NT Sensor Voltage

Transmission revolution sensor (NT) output voltage/

Min.: 0.000 V

Max.: 4.999 V

0.1 to 1.9 V: Engine idling

-

Lock Up Status

Lock up/

ON or OFF

  • ON: Lock-up operating
  • OFF: Lock-up not operating

-

Shift Status

ECM gear shift command/

1st, 2nd, 3rd, 4th, 5th or 6th

Same as actual gear

-

Solenoid (SLT)

Shift solenoid valve SLT status/

ON or OFF

  • ON: Shift solenoid valve SLT operating
  • OFF: Shift solenoid valve SLT not operating

-

Solenoid (SLU)

Shift solenoid valve SLU status/

ON or OFF

  • ON: Shift solenoid valve SLU operating
  • OFF: Shift solenoid valve SLU not operating

-

Solenoid (SL1)

Shift solenoid valve SL1 status/

ON or OFF

  • ON: Shift solenoid valve SL1 operating
  • OFF: Shift solenoid valve SL1 not operating

-

Solenoid (SL2)

Shift solenoid valve SL2 status/

ON or OFF

  • ON: Shift solenoid valve SL2 operating
  • OFF: Shift solenoid valve SL2 not operating

-

Solenoid (SL3)

Shift solenoid valve SL3 status/

ON or OFF

  • ON: Shift solenoid valve SL3 operating
  • OFF: Shift solenoid valve SL3 not operating

-

Solenoid (SL4)

Shift solenoid valve SL4 status/

ON or OFF

  • ON: Shift solenoid valve SL4 operating
  • OFF: Shift solenoid valve SL4 not operating

-

Solenoid (SL)

Shift solenoid valve SL status/

ON or OFF

  • ON: Shift solenoid valve SL operating
  • OFF: Shift solenoid valve SL not operating

-

(h) Enter the following menus: Powertrain / Engine / Data List.

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

Engine

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

Sports Shift Up SW

Sport shift up switch status/

ON or OFF

  • ON: Shift lever held in "+" (up-shift)
  • OFF: Shift lever not held in "+" (up-shift)

-

Sports Shift Down SW

Sport shift down switch status/

ON or OFF

  • ON: Shift lever held in "-" (down-shift)
  • OFF: Shift lever not held in "-" (down-shift)

-

Power Mode SW

Power mode status/

ON or OFF

  • ON: PWR mode on
  • OFF: PWR mode off

-

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) 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: Powertrain / Transmission / Active Test.

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

Transmission

Tester Display

Test Part

Control Range

Diagnostic Note

Activate the TC Terminal

Connects and disconnects TC and TE1.

(changes to the fluid temperature detection mode)

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Vehicle stopped

Activate the Solenoid (SLU)

Operates shift solenoid valve SLU

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SLT)*

Operates shift solenoid valve SLT to raise the line pressure.

ON/OFF

HINT:

ON: No action (normal operation)

OFF: Line pressure up (When the Active Test of "Activate the Solenoid (SLT)" is performed, the ECM commands the shift solenoid valve SLT to turn off).

[Vehicle Condition]

  • Vehicle Stopped
  • Engine idling

Activate the Lock Up Solenoid

Controls the shift solenoid valves SLU and SL to set the automatic transmission to the lock-up condition.

ON/OFF

Start/Stop

Can be used to check shift solenoid valves SLU and SL operation.

[Vehicle Condition]

Vehicle speed: 60 km/h (36 mph) or more

Activate the Solenoid (SL)

Operates shift solenoid valve SL

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

Control the Shift Position

Operates the shift solenoid valves to allow gears to be selected manually.

1st/2nd/3rd/4th/5th/6th

Start/Stop

Can be used to check the operation of the shift solenoid valves.

Up-shifts and down-shifts should be performed consecutively. A 10 second interval is required between gear changes.

Do not down-shift at high speeds. Doing so will damage the automatic transmission.

[Vehicle Condition]

  • 50 km/h (31 mph) or less

Activate the Solenoid (SL1)

Operates shift solenoid valve SL1

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SL2)

Operates shift solenoid valve SL2

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SL3)

Operates shift solenoid valve SL3

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SL4)

Operates shift solenoid valve SL4

ON/OFF

[Vehicle Condition]

  • Ignition switch ON
  • Engine stopped
  • Shift lever in P or N

*: The "Activate the Solenoid (SLT)" Active Test is performed to allow confirmation that the line pressure changes. The line pressure changes are confirmed using the same SST that is used for the Hydraulic Test (See page HINT: ).

HINT:

Note that the pressure readings for the Active Test and Hydraulic Test are different.

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