Toyota Tacoma (2015-2018) Service Manual: 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.
(c) Turn the Techstream 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 |
ON: Cruise brake activated OFF: Cruise brake deactivated |
- |
|
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 |
- |
|
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.
(c) Turn the Techstream 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, 6 to 0 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 (stop sound) |
ON or OFF |
Buzzer can be heard |
|
Radar Cruise Approach Alarm Buzzer |
Skid control buzzer (approach sound) |
ON or OFF |
Buzzer can be heard |
Freeze Frame Data
FREEZE FRAME DATA
CHECK FREEZE FRAME DATA
HINT:
The ECU records vehicle and driving condition information as freeze frame data
the moment a DTC is stored.
(a) Connect the Techstream to the DLC3. ...
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Dynamic Radar Cruise Control System
DTC No.
Detection Item
Link
C1A02
Vehicle Information Not Obtained
...
Other materials:
Disassembly
DISASSEMBLY
CAUTION / NOTICE / HINT
HINT:
The procedure described below is for the LH side. Use the same procedure for
both the LH and RH sides, unless otherwise specified.
PROCEDURE
1. REMOVE REAR SEATBACK COVER
(a) Remove the 2 screws.
...
Engine compartment
2.7 L 4-cylinder (2TR-FE) engine
1. Washer fluid tank
2.Radiator cap
3.Engine coolant reservoir
4. Engine oil filler cap
5. Power steering fluid reservoir
6. Engine oil level dipstick
7. Brake fluid reservoir
8. Fuse box
9. Battery
10. Condenser
11. Radiator
4.0 L V6 (1GR-FE) engine
...
Check Bus 3 Line for Short to +B
DESCRIPTION
There may be a short circuit between one of the CAN bus lines and +B when no
resistance exists between terminal 6 (CA3H) of the central gateway ECU (network
gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 21 (CA3L) of the central
gateway ECU (network gateway ECU) and t ...
