Toyota Tundra Service Manual: Data List / Active Test

Toyota Tundra Service Manual / Engine, Hybrid System / A760e Automatic Transmission / Transaxle / Automatic Transmission System / Data List / Active Test

DATA LIST / ACTIVE TEST

1. 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.

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 / Engine and ECT / Data List.

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

Engine and ECT

Tester Display

Measurement Item/Range

Normal Condition

Diagnostic Note

N Range Status

Shift lever N status/

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

-

Neutral Position SW Signal

PNP switch status/

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

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

HINT:

When failure still occurs even after adjusting these parts, refer to DTC P0705 (See page ).

Stop Light Switch

Stop light switch status/

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

-

SPD (NT)

Input shaft speed/

Min.: 0 rpm

Max.: 12750 rpm
  • Lock-up ON (after warming up engine): Input turbine speed (NT) is equal to engine speed
  • Lock-up OFF (idling with shift lever in N): Input turbine speed (NT) is nearly equal to engine speed

Data is displayed in increments of 50 rpm.

SPD (SP2)

Output shaft speed/

Min.: 0 km/h (0 mph)

Max.: 255 km/h (158 mph)

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

-

Shift SW Status (P Range)

PNP switch status/

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

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

HINT:

When failure still occurs even after adjusting these parts, refer to DTC P0705 (See page ).

Shift SW Status (R Range)

PNP switch status/

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

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

HINT:

When failure still occurs even after adjusting these parts, refer to DTC P0705 (See page ).

Shift SW Status (N Range)

PNP switch status/

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

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

HINT:

When failure still occurs even after adjusting these parts, refer to DTC P0705 (See page ).

Shift SW Status (N, P Range) Supported

Status of PNP switch (N or P) support/

Supp or Unsupp

-

-

Shift SW Status (N, P Range)

PNP switch status/

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

-

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)

-

Sports Mode Selection SW

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)

PNP switch status/

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

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

HINT:

When failure still occurs even after adjusting these parts, refer to DTC P0705 (See page ).

A/T Oil Temperature 1

No. 1 ATF temperature sensor value/

Min.: -40°C (-40°F)

Max.: 150°C (302°F)
  • After stall test: Approximately 80°C (176°F)
  • Equal to ambient temperature when engine cold

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

A/T Oil Temperature 2

No. 2 ATF temperature sensor value/

Min.: -40°C (-40°F)

Max.: 150°C (302°F)
  • After stall test: Approximately 80°C (176°F)
  • Equal to ambient temperature when engine cold

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

ATF Thermal Degradation Estimate

Estimated value of ATF thermal degradation/

Min.: 0

Max.: 65535

-

If 50000 or more is displayed for the Data List item "ATF Thermal Degradation Estimate", thermal degradation of the ATF is suspected. Perform ATF Thermal Degradation Estimate Reset after replacing the ATF.

Lock Up

Lock-up/

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

-

Shift Status

ECM gear shift command/

1st, 2nd, 3rd, 4th, 5th or 6th
  • Shift lever in D: 1st, 2nd, 3rd, 4th, 5th or 6th
  • Shift lever in S: 1st, 2nd, 3rd, 4th, 5th or 6th

-

SLT Solenoid Status

Shift solenoid SLT status/

ON or OFF
  • Accelerator pedal depressed: OFF
  • Accelerator pedal released: ON

-

SLU Solenoid Status

Shift solenoid SLU status/

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

-

Torque Converter Temperature Raise History

Torque converter temperature raise history status/

ON or OFF

OFF

This item always displays OFF.

2. 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) 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 / Engine and ECT / Active Test.

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

Engine and ECT

Tester Display

Test Part

Control Range

Diagnostic Note

Activate the Solenoid (SLU)

Operate the shift solenoid SLU

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SLT)*

Operate the shift solenoid SLT and raise line pressure

ON or OFF

HINT:

  • OFF: Line pressure up (when Active Test "Activate the Solenoid (SLT)" is performed, ECM commands SLT solenoid to turn off)
  • ON: No action (normal operation)

[Vehicle Condition]

  • Vehicle stopped
  • Engine idling

Activate the Solenoid (S1)

Operate the shift solenoid S1

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (S2)

Operate the shift solenoid S2

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (S3)

Operate the shift solenoid S3

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (S4)

Operate the shift solenoid S4

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Lock Up

Control shift solenoid SLU to set automatic transmission to lock-up

ON or OFF

Possible to check shift solenoid valve SLU operation.

[Vehicle Condition]

  • Throttle valve opening angle: Less than 35%
  • Vehicle speed: 80 km/h (50 mph) or more

Control the Shift Position

Operate shift solenoid valves and set each shift position
  • Press "→" button: Shift up
  • Press "←" button: Shift down

Possible to check operation of the shift solenoid valves.

[Vehicle Condition]

50 km/h (30 mph) or less

Activate the Solenoid (SR)

Operate the shift solenoid SR

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SL1)

Operate the shift solenoid SL1

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

Activate the Solenoid (SL2)

Operate the shift solenoid SL2

ON or OFF

[Vehicle Condition]

  • Engine stopped
  • Shift lever in P or N

HINT:

*: Activate the Solenoid (SLT) in the Active Test is performed to check the line pressure changes by connecting SST to the automatic transmission, which is used in the Hydraulic Test (See page ) as well. Please note that the pressure values in the Active Test and Hydraulic Test are different.

    Check Mode Procedure

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