Road Test

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: ROAD TEST

1. PROBLEM SYMPTOM CONFIRMATION

HINT
The dynamic radar cruise control system has two cruise control modes: the constant speed control mode and vehicle-to-vehicle distance control mode.

* The vehicle-to-vehicle distance control mode is always selected when starting up the dynamic radar cruise control system.
* Operation of the constant speed control mode is the same as that for a conventional cruise control system.

(a) Inspect the SET function.





(1) Turn the main switch on.

(2) Drive the vehicle at a speed for which cruise control operation is possible.

(3) Push the cruise control main switch to - (COAST)/SET.

(4) After releasing the switch, check that the vehicle cruises at the set speed.

(b) Inspect the + (ACCEL) function.





(1) Turn the main switch on.

(2) Drive the vehicle at a speed for which cruise control operation is possible.

(3) Push the cruise control main switch to - (COAST)/SET.

(4) Check that vehicle speed increases while the cruise control main switch is pushed to + (ACCEL)/RES (RESUME), and that the vehicle cruises at the newly set speed when the switch is released.

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

HINT
*: Constant speed control mode: increases by 1.6 km/h (1.0 mph); vehicle-to-vehicle distance control mode: increases by 5 km/h (5 mph)

(c) Inspect the - (COAST) function.





(1) Turn the main switch on.

(2) Drive the vehicle at a speed for which cruise control operation is possible.

(3) Push the cruise control main switch to - (COAST)/SET.

(4) Check that vehicle speed decreases while the cruise control main switch is pushed to - (COAST)/SET, and the vehicle cruises at the newly set speed when the switch is released.

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

HINT
*: Constant speed control mode: decreases by 1.6 km/h (1.0 mph); vehicle-to-vehicle distance control mode: decreases by 5 km/h (5 mph).

(d) Inspect the CANCEL function.





(1) Turn the main switch on.

(2) Drive the vehicle at a speed for which cruise control operation is possible.

(3) Push the cruise control main switch to - (COAST)/SET.

(4) When performing any one of the following, check that the cruise control system is canceled and that the normal driving mode is reset.

* Depressing the brake pedal

* The shift lever is moved from D to any other position

* Selecting the D3, D2 or D1 range using the shift paddle switch with the shift lever in D

* Turning the main switch off

* Pulling the cruise control main switch to CANCEL

(e) Inspect the RES (RESUME) function.





(1) Turn the main switch on.

(2) Drive the vehicle at a speed for which cruise control operation is possible.

(3) Push the cruise control main switch to - (COAST)/SET.

(4) Cancel the cruise control system by performing any of the above operations (other than turning the main switch off).

(5) After pushing the cruise control main switch to + (ACCEL)/RES (RESUME) at a driving speed of more than 40 km/h (25 mph), check that the vehicle resumes the speed set prior to the cancellation.

HINT
The stored vehicle speed is retained even if vehicle speed drops below 40 km/h (25 mph) once. The previously stored vehicle speed can be resumed by pushing the cruise control main switch to + (ACCEL)/RES (RESUME) when the vehicle speed has returned to approximately 40 km/h (25 mph) or more.