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.

(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.

(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

Definition Of Terms

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