Toyota Tacoma 2015-2018 Service Manual: Road Test
ROAD TEST
PROBLEM SYMPTOM CONFIRMATION
HINT:
- The dynamic radar cruise control system has 2 cruise control modes: constant speed control mode and vehicle-to-vehicle distance control mode.
- Vehicle-to-vehicle distance control mode is selected by default when the dynamic radar cruise control system is turned on using the cruise control main switch.
(a) Inspect the SET function.
|
*a |
ON-OFF |
|
*b |
-SET |
(1) Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
(2) Check that the cruise control indicator light illuminates in the combination meter assembly.
(3) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110 mph).
(4) Push the cruise control main switch to -SET.
|
*1 |
Cruise Control Indicator (Vehicle-to-vehicle Distance Control Mode) |
|
*2 |
Cruise Control SET Indicator |
(5) Check that the cruise control indicator remains illuminated, the cruise control SET indicator illuminates in the combination meter assembly and the set speed is displayed on the multi-information display.
(6) After releasing the switch, check that the vehicle maintains the set speed.
(b) Inspect the + (ACCEL) function.
(1) Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
|
*a |
ON-OFF |
|
*b |
-SET |
(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110 mph).
(3) Push the cruise control main switch to -SET.
(4) Constant speed control mode:
Check that vehicle speed increases while the cruise control main switch is pushed to +/RES, and that the vehicle maintains the newly set speed when the switch is released.
Vehicle-to-vehicle distance control mode:
Check that the vehicle speed increases in increments of approximately 1 km/h (or 1 mph)* or 5 km/h (or 5 mph) while the cruise control main switch is pushed to +/RES and that the vehicle maintains the newly set speed when the switch is released.
- *: for USA
|
*a |
+RES |
(5) Push the cruise control main switch to +RES and then release it immediately. Check that the vehicle speed increases* (tap-up control).
HINT:
*: Constant speed control mode: increases by approximately 1 km/h or 1 mph; vehicle-to-vehicle distance control mode: increases by approximately 1 km/h or 1 mph.
(c) Inspect the - (COAST) function.
(1) Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
|
*a |
ON-OFF |
|
*b |
-SET |
(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110 mph).
(3) Push the cruise control main switch to -SET.
(4) Constant speed control mode:
|
*a |
-SET |
Check that vehicle speed decreases while the cruise control main switch is pushed to -/SET, and that the vehicle maintains the newly set speed when the switch is released.
Vehicle-to-vehicle distance control mode:
Check that the vehicle speed decreases in increments of approximately 1 km/h (or 1 mph)* or 5 km/h (or 5 mph) while the cruise control main switch is pushed to -/SET and that the vehicle maintains the newly set speed when the switch is released.
- *: for USA
(5) Push the cruise control main switch to -SET, and then release it immediately. Check that the vehicle speed decreases* (tap-down control).
HINT:
*: Constant speed control mode: decreases by approximately 1 km/h or 1 mph; vehicle-to-vehicle distance control mode: decreases by approximately 1 km/h or 1 mph.
|
*a |
ON-OFF |
|
*b |
-SET |
(d) Inspect the CANCEL function.
(1) Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110 mph).
(3) Push the cruise control main switch to -SET.
(4) When any of the following are performed, check that control of vehicle speed by the dynamic radar cruise control system is canceled and that the normal driving mode (no control of vehicle speed by the dynamic radar cruise control system) resumes.
|
*a |
CANCEL |
- Depressing the brake pedal.
- for Automatic Transmission
- Moving the shift lever from D or S to any other position.
- Selecting the S3, S2 or S1 range with the shift lever in S.
- for Manual Transmission:
- Vehicle-to-vehicle Distance Control Mode:
- Clutch pedal is depressed for a certain period of time or longer.
- Moving the shift lever to neutral and waiting for a certain amount of time.
- Constant Speed Control Mode:
Depressing the clutch pedal.
- Vehicle-to-vehicle Distance Control Mode:
- Pulling the cruise control main switch to CANCEL
- Turning the dynamic radar cruise control system off using the cruise control main switch (ON-OFF button) (The stored vehicle speed in the ECM is not maintained.).
(e) Inspect the RES (RESUME) function.
(1) Turn the dynamic radar cruise control system on using the cruise control main switch (ON-OFF button).
|
*a |
ON-OFF |
|
*b |
-SET |
(2) Drive at a speed between approximately 50 km/h (31 mph) and 180 km/h (110 mph).
(3) Push the cruise control main switch to -SET.
(4) Cancel control of vehicle speed by the dynamic radar cruise control system by performing any of the CANCEL functions (other than turning the dynamic radar cruise control system off using the cruise control main switch (ON-OFF button)).
(5) Push the cruise control main switch to +RES while driving the vehicle at a speed of more than approximately 40 km/h (25 mph), and check that the vehicle resumes the speed set prior to cancellation and that the cruise control SET indicator illuminates.
HINT:
The stored vehicle speed is retained even if vehicle speed drops below approximately 40 km/h (25 mph). The previously stored vehicle speed can be resumed by pushing the cruise control main switch to +RES when the vehicle speed has returned to approximately 40 km/h (25 mph) or more.
|
*a |
+RES |
Operation Check
OPERATION CHECK
INPUT SIGNAL CHECK
*a
+RES
*b
-SET
*c
ON-OFF
*d
CANCEL
(a) Conne ...
Diagnosis System
DIAGNOSIS SYSTEM
DIAGNOSIS FUNCTION
(a) The diagnosis function turns off the cruise control indicator, illuminates
the master warning light and displays a warning message when a malfunction is det ...
Other materials:
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 sig ...
Pressure Control Solenoid "C" Actuator Stuck Off (P07957F)
SYSTEM DESCRIPTION
The ECM uses the vehicle speed signal and signals from the transmission revolution
sensors (NT, SP2) to detect the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear).
The ECM compares the actual gear with the shift schedule in the ECM memory to
detect mechanical problems of t ...
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT BRAKE MASTER CYLINDER FLUID PRESSURE CHANGE
(a) Inspect the battery positive voltage.
Battery positive voltage:
10 to 14 V
(b) Turn the ignition switch to OFF, and depress the brake pedal more than 20
times.
HINT:
When pressure in the accumulator ...