Toyota Tundra Service Manual: Data List / Active Test

Toyota Tundra Service Manual / Engine, Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Data List / Active Test

DATA LIST / ACTIVE TEST

READ DATA LIST

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.

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.

(a) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Powertrain / Radar Cruise1*1 or Radar Cruise2*2 / Data List.

*1: Output from the ECM
*2: Output from the millimeter wave radar sensor assembly

(e) Radar Cruise 1:

Read the Data List according to the display on the Techstream.

HINT:

If any DTCs are output, the value for a measurement item may be incorrect.
If any DTCs are output, perform troubleshooting accordingly. After repair, confirm relevant values using the Data List.

Powertrain > Radar Cruise1 > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Cruise Vehicle Speed	Vehicle speed	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Actual vehicle speed	-
Cruise Memory Vehicle Speed	Stored vehicle speed	Min.: 0 km/h (0 mph) Max.: 255 km/h (158 mph)	Stored vehicle speed	-
Cruise Request Throttle Opening Angle	Cruise requested position	0 to 124.99°	When cruise is set (vehicle in motion at 80 km/h (50 mph)): Actual requested throttle position	-
Vehicle Acceleration	Acceleration condition while driving the vehicle	-13.1 to 13.1 m/s2	Current value displayed	-
Cruise Target Acceleration	Target acceleration while in cruise control mode	-13.1 to 13.1 m/s2	Current value displayed	-
Driving Support ECU Target Acceleration	Target acceleration of driving support ECU	-13.1 to 13.1 m/s2	-	This item is displayed on the Techstream but is not used.
Acceleration Continuation Decision	Acceleration continuation decision condition	ON or OFF	-	This item is displayed on the Techstream but is not used.
Output Driving Force	Generated drive torque	-10.0 to 9.92 kN	-	This item is displayed on the Techstream but is not used.
Cruise Request Driving Force	Cruise request torque signal	-10.0 to 9.92 kN	Differs according to the cruise control system condition	-
Cruise Request Driving Force Feedback Status	Cruise request driving force feedback mode	No Control, Suspend, Neg Calc Prohibited, Pos Calc Prohibited, Normal or Increasing at Start	-	This item is displayed on the Techstream but is not used.
Cruise Control Permission Condition	Cruise control system condition	OK or NG	-	This item is displayed on the Techstream but is not used.
Cruise Control Condition	Cruise control system active condition	No Control, Constant Speed Control Mode - Ready, Constant Speed Control Mode - Controlling, Vehicle Distance Control Mode - Ready, Vehicle Distance Control Mode - Controlling, Termination Control, Suspend or Abnormal Stop	-	This item is displayed on the Techstream but is not used.
Cruise Control Mode	Cruise control mode condition	No Control or Constant Speed Control Mode, Vehicle Distance Control Mode	No Control: Cruise control mode not operating Constant Speed Control Mode: Constant speed control mode operating Vehicle Distance Control Mode: Vehicle distance control mode operating	-
Cruise Request Gear Position	Shift request from ECM	None or 255 Gear	Shift request from cruise control system	-
Cruise Acceleration and Deceleration Operation Condition	Cruise acceleration and deceleration operation condition	No Control, Constant Speed Control Mode - Standby, Constant Speed Control Mode - RES SW Control, Constant Speed Control Mode - ACC SW Control, Constant Speed Control Mode - COAST SW Control, Constant Speed Control Mode - Tap Down Control, Constant Speed Control Mode - Tap Up Control, Vehicle Distance Control Mode - Vehicle Stop, Vehicle Distance Control Mode - Standby, Vehicle Distance Control Mode - Acceleration Operation or Vehicle Distance Control Mode - Deceleration Operation	-	This item is displayed on the Techstream but is not used.
Cancel Switch	CANCEL switch status	ON or OFF	ON: CANCEL switch on OFF: CANCEL switch off	-
-SET Switch	-SET switch status	ON or OFF	ON: -SET switch on OFF: -SET switch off	-
+RES Switch	+RES switch status	ON or OFF	ON: +RES switch on OFF: +RES switch off	-
Cruise Main Switch Operation Condition	Cruise control main switch (ON-OFF button) status	ON or OFF	ON: Cruise control main switch (ON-OFF button) pushed OFF: Cruise control main switch (ON-OFF button) not pushed	-
Cruise Ready Main-CPU	Cruise control system standby condition	ON or OFF	Each time cruise control main switch (ON-OFF button) is pushed, ON or OFF changes	-
Cruise Ready Sub-CPU	Cruise control system standby condition	ON or OFF	Each time cruise control main switch (ON-OFF button) is pushed, ON or OFF changes	-
Accelerator Pedal	Condition of the accelerator pedal during cruising	ON or OFF	ON: Accelerator pedal depressed OFF: Accelerator pedal released	-
Stop Light Switch Sub-CPU	Stop light switch signal	ON or OFF	-	This item is displayed on the Techstream but is not used.
Request Manual Cancel	Whether there is a manual cancel request	ON or OFF	-	This item is displayed on the Techstream but is not used.
Request Automatic Cancel	Whether there is an automatic cancel request	ON or OFF	-	This item is displayed on the Techstream but is not used.
Cruise Brake Control Decision	Cruise brake control decision	ON or OFF	-	-
Cruise Brake Control Permission Condition	Cruise brake control permission condition	OK or NG	-	This item is displayed on the Techstream but is not used.
Cruise Indicator	Cruise control indicator status	ON or OFF	ON: Cruise control indicator illuminates OFF: Cruise control indicator turns off	-
Wheel Speed Sensor and Deceleration Sensor	Speed sensor signal and deceleration sensor signal condition	Avail or Not Avl	Avail: Speed sensor signal and deceleration sensor signal available Not Avl: Speed sensor signal and deceleration sensor signal not available	-
Gradient of Road Surface	Gradient of road surface condition	-32.76 to 32.76 m/s2	-	This item is displayed on the Techstream but is not used.
Brake Cancel Switch	Stop light switch status	ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-

(f) Radar Cruise 2:

Read the Data List according to the display on the Techstream.

HINT:

If any DTCs are output, the value for a measurement item may be incorrect.
If any DTCs are output, perform troubleshooting accordingly. After repair, confirm relevant values using the Data List.

Powertrain > Radar Cruise2 > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Cruise Control Main Switch	Cruise control switch signal	ON or OFF	ON: Cruise control main switch (ON-OFF button) pushed OFF: Cruise control main switch (ON-OFF button) not pushed	-
Distance Control Switch	Distance control switch signal	ON or OFF	ON: Distance control switch on OFF: Distance control switch off	-
Cruise Control Mode	Cruise control mode signal	Hi Spd or Normal	Hi Spd: Vehicle-to-vehicle distance control mode Normal: Constant speed mode	-
Vehicle Distance	Distance to preceding vehicle	Min.: 0 m (0 ft.), Max.: 255 m (836.65 ft.)	Actual distance to vehicle	-
Vhcl Spd-Brake ECU	Vehicle speed from skid control ECU	Min.: -327.0 km/h (-203 mph), Max.: 327.0 km/h (204 mph)	Actual vehicle speed	-
Vehicle Acceleration	Vehicle acceleration	Min.: -5.00 m/s2, Max.: 5.00 m/s2	Actual vehicle acceleration	-
Closed Throttle Position	Accelerator pedal idle position signal	ON or OFF	ON: Accelerator pedal released OFF: Accelerator pedal depressed	-
Yaw Rate Sensor	Yaw rate value	Min.: -100.00 deg/s, Max.: 100.00 deg/s	Actual yaw rate value	-
Forward Vhcl Relative Spd	Vehicle ahead relative speed	Min.: -128 m/s, Max.: 127 m/s	Actual vehicle ahead relative speed	-
Vehicle Approach Warning	Forward vehicle approach warning signal	ON or OFF	ON: Forward vehicle approaching OFF: Forward vehicle not approaching	-
CCS System Check	Dynamic radar cruise control system warning indication	ON or OFF	ON: Dynamic radar cruise control system warning indication (Malfunction detected) OFF: Dynamic radar cruise control system warning indication (Malfunction not detected)	-
FRS-Dirt	History of dirt detected on millimeter wave radar sensor assembly	ON or OFF	ON: History of dirt detected on millimeter wave radar sensor assembly OFF: No history of dirt detected on millimeter wave radar sensor assembly	-
Bad Wthr Hist(F Radar Sen)	History of millimeter wave radar sensor assembly detecting bad weather	ON or OFF	ON: History of millimeter wave radar sensor assembly detecting bad weather OFF: No history of millimeter wave radar sensor assembly detecting bad weather	-
Frnt Radar Sens Temp Hi	Millimeter wave radar sensor assembly high temperature abnormality	ON or OFF	ON: Millimeter wave radar sensor assembly abnormal OFF: Millimeter wave radar sensor assembly normal	-
Front Radar Voltage	Millimeter wave radar sensor assembly low voltage abnormality	Normal or Low	Low: Millimeter wave radar sensor assembly abnormal Normal: Millimeter wave radar sensor assembly normal	If the engine starts 1 second or more after the ignition switch was turned to ON, this item may change to Low.
Driving Support ECU Destination Variation No	Destination variation number for driving support ECU assembly	Variation number or Not Available	Actual variation number	-
Destination Variation No	Destination variation number	Variation number or Not Available	Actual variation number	-
Steering Angle	Steering angle sensor signal	Min.: -3072.0 deg, Max.: 3070.5 deg	Increase: Turning left Decrease: Turning right	-
Zero Point Angle Sens	Zero point steering angle sensor	Min.: -3072.0 deg, Max.: 3070.5 deg	Actual zero point steering angle	-
# Codes	Number of DTC	Min.: 0, Max.: 255	Actual number of DTCs	-

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) Connect the Techstream to the DLC3.

(b) Turn the ignition switch to ON.

(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.

(e) Perform the Active Test according to the display on the Techstream.

HINT:

The ignition switch must be turned to ON to perform the Active Test using the Techstream.

Body Electrical > Combination Meter > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Meter Display 1	Multi-information display	OFF or All	-

(f) Enter the following menus: Powertrain / Radar Cruise 2 / Active Test.

(g) Perform the Active Test according to the display on the Techstream.

HINT:

The ignition switch must be turned to ON to perform the Active Test using the Techstream.

Powertrain > Radar Cruise2 > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Radar Cruise Stop Buzzer	Skid control buzzer assembly (stop sound)	ON or OFF	Buzzer can be heard
Radar Cruise Approach Alarm Buzzer	Skid control buzzer assembly (approach sound)	ON or OFF	Buzzer can be heard

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