Toyota Yaris: Dynamic Radar Cruise Control System / Road Test

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Dynamic Radar Cruise Control System / Road Test

ROAD TEST

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.

PROBLEM SYMPTOM CONFIRMATION (CONSTANT SPEED CONTROL MODE)

(a) Inspect the SET function.

(1) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

NOTICE:

After pressing the cruise control main switch, if other operations (set) are performed, the system will not change to constant speed control mode. In this case, press the cruise control main switch to turn the dynamic radar cruise control system OFF, and then perform the inspection again.

(2) Check that the cruise control indicator (vehicle-to-vehicle distance control mode) turns off and the cruise control indicator (constant speed control mode) illuminates.

*a

Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)

*b

Cruise Control Indicator

(Constant Speed Control Mode)

(3) Drive at a speed between approximately 30 km/h (20 mph) and 200 km/h (125 mph).

(4) Push the -SET switch.

*1

Steering Pad Switch Assembly

*a

-SET Switch

(5) Check that the cruise SET indicator illuminates at this time.

*a

Cruise Control Indicator

*b

Cruise SET Indicator

(6) After releasing the switch, check that the vehicle maintains the set speed.

HINT:

If the vehicle speed decreases to 16 km/h (10 mph) less than the vehicle set speed such as when driving on a steep slope, control of vehicle speed by the constant speed control mode is canceled.

(b) Inspect the + (ACCEL) function.

(1) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

NOTICE:

After pressing the cruise control main switch, if other operations (set) are performed, the system will not change to constant speed control mode. In this case, press the cruise control main switch to turn the dynamic radar cruise control system OFF, and then perform the inspection again.

(2) Drive at a speed between approximately 30 km/h (20 mph) and 200 km/h (125 mph).

(3) Push the -SET switch.

(4) Check that vehicle speed increases while the +RES switch is pushed, and that the vehicle maintains the newly set speed when the switch is released.

*1

Steering Pad Switch Assembly

*a

+RES Switch

(5) Push the +RES switch and then release it immediately. Check that vehicle speed increases by approximately 1 km/h or 1 mph (tap-up control).

HINT:

If the difference between the set vehicle speed and actual vehicle speed is 5 km/h (3 mph) or more, tap-up control will not operate.

(6) Confirm that the set vehicle speed displayed on the multi-information display changes when the +RES switch is pushed.

(c) Inspect the - (COAST) function.

(1) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

NOTICE:

After pressing the cruise control main switch, if other operations (set) are performed, the system will not change to constant speed control mode. In this case, press the cruise control main switch to turn the dynamic radar cruise control system OFF, and then perform the inspection again.

(2) Drive at a speed between approximately 30 km/h (20 mph) and 200 km/h (125 mph).

(3) Push the -SET switch.

(4) Check that vehicle speed decreases while the -SET switch is pushed, and the vehicle maintains the newly set speed when the switch is released.

*1

Steering Pad Switch Assembly

*a

-SET Switch

HINT:

If the vehicle speed decreases to approximately 30 km/h (20 mph), control of vehicle speed by the constant speed control mode is canceled.

(5) Push the -SET switch, and then release it immediately. Check that vehicle speed decreases by approximately 1 km/h or 1 mph (tap-down control).

HINT:

If the difference between the set vehicle speed and actual vehicle speed is 5 km/h (3 mph) or more and the -SET switch is pushed, the vehicle speed is stored as the set speed and the vehicle will be driven in constant speed control mode.

(6) Confirm that the set vehicle speed displayed on the multi-information display changes when the -SET switch is pushed.

(d) Inspect the CANCEL function.

(1) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

NOTICE:

After pressing the cruise control main switch, if other operations (set) are performed, the system will not change to constant speed control mode. In this case, press the cruise control main switch to turn the dynamic radar cruise control system OFF, and then perform the inspection again.

(2) Drive at a speed between approximately 30 km/h (20 mph) and 200 km/h (125 mph).

(3) Push the -SET switch.

(4) When any of the following are performed, check that control of vehicle speed by the constant speed control mode is canceled and that normal driving resumes (no control of vehicle speed by the constant speed control mode).

*1

Steering Pad Switch Assembly

*a

CANCEL Switch

  • Depressing the brake pedal.
  • Depressing the clutch pedal.
  • Pushing the CANCEL switch.
  • Turning the dynamic radar cruise control system off using the cruise control main switch (the stored vehicle speed in the ECM is not maintained).

(e) Inspect the RES (RESUME) function.

HINT:

If the vehicle speed decreases to less than approximately 30 km/h (20 mph), pushing the +RES switch reinstates the set vehicle speed that was set before control of vehicle speed by the constant speed control mode was canceled.

(1) Push and hold the cruise control main switch for 1.5 seconds or more with the dynamic radar cruise control system off to change to constant speed control mode.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

NOTICE:

After pressing the cruise control main switch, if other operations (set) are performed, the system will not change to constant speed control mode. In this case, press the cruise control main switch to turn the dynamic radar cruise control system OFF, and then perform the inspection again.

(2) Drive at a speed between approximately 30 km/h (20 mph) and 200 km/h (125 mph).

(3) Push the -SET switch.

(4) Depress the brake pedal to cancel control of vehicle speed by the dynamic cruise control system.

(5) Push the +RES switch while driving the vehicle at a speed of more than approximately 30 km/h (20 mph), and check that the vehicle resumes the speed set prior to cancellation and that the cruise SET indicator illuminates.

*1

Steering Pad Switch Assembly

*a

+RES Switch

PROBLEM SYMPTOM CONFIRMATION (VEHICLE-TO-VEHICLE DISTANCE CONTROL MODE)

(a) Inspect the SET function.

(1) Turn the dynamic radar cruise control system on using the cruise control main switch.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

(2) Check that the cruise control indicator illuminates in the combination meter assembly.

(3) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

(4) Push the -SET switch.

(5) Check that the cruise control indicator remains illuminated, the cruise SET indicator illuminates in the combination meter assembly and the set speed is displayed on the multi-information display.

*a

Cruise Control Indicator

(Vehicle-to-vehicle Distance Control Mode)

*b

Cruise SET Indicator

(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.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

(2) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

(3) Push the -SET switch.

(4) Push and hold the +RES switch and check that vehicle speed increases in 5 km/h or 5 mph increments.

*1

Steering Pad Switch Assembly

*a

+RES Switch

(5) Push the +RES switch and then release it immediately. Check that the vehicle speed increases* (tap-up control).

HINT:

*: Increases by approximately 1 km/h or 1 mph.

(6) Confirm that the set vehicle speed displayed on the multi-information display changes when the +RES switch is pushed.

(c) Inspect the - (COAST) function.

(1) Turn the dynamic radar cruise control system on using the cruise control main switch.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

(2) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

(3) Push the -SET switch.

(4) Push and hold the -SET switch and check that vehicle speed decreases in 5 km/h or 5 mph increments.

*1

Steering Pad Switch Assembly

*a

-SET Switch

(5) Push the -SET switch, and then release it immediately. Check that the vehicle speed decreases* (tap-down control).

HINT:

*: Decreases by approximately 1 km/h or 1 mph.

(6) Confirm that the set vehicle speed displayed on the multi-information display changes when the -SET switch is pushed.

(d) Inspect the CANCEL function.

(1) Turn the dynamic radar cruise control system on using the cruise control main switch.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

(2) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

(3) Push the -SET switch.

(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 normal driving resumes (no control of vehicle speed by the dynamic radar cruise control system).

*1

Steering Pad Switch Assembly

*a

CANCEL Switch

  • Depressing the brake pedal.
  • Pushing the CANCEL switch.
  • Depressing the clutch pedal for a certain period of time.
  • The shift lever is in neutral for a certain period of time.
  • Turning the dynamic radar cruise control system off using the cruise control main switch (the stored vehicle speed in the ECM is not maintained).

(e) Inspect the RES (RESUME) function.

HINT:

If the vehicle speed decreases to less than approximately 30 km/h (20 mph), pushing the +RES switch reinstates the set vehicle speed that was set before control of vehicle speed by the dynamic cruise control system was canceled.

(1) Turn the dynamic radar cruise control system on using the cruise control main switch.

*1

Steering Pad Switch Assembly

*a

Cruise Control Main Switch

*b

-SET Switch

(2) Drive at a speed between approximately 30 km/h (20 mph) and 180 km/h (110 mph).

(3) Push the -SET switch.

(4) Depress the brake pedal to cancel control of vehicle speed by the dynamic cruise control system.

(5) Push the +RES switch while driving the vehicle at a speed of more than approximately 30 km/h (20 mph), and check that the vehicle resumes the speed set prior to cancellation and that the cruise SET indicator illuminates.

*1

Steering Pad Switch Assembly

*a

+RES Switch

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