Cruise Main Indicator Light Circuit

CRUISE CONTROL: DYNAMIC RADAR CRUISE CONTROL SYSTEM: Cruise Main Indicator Light Circuit
- Cruise Main Indicator Light Circuit

DESCRIPTION

When the cruise control switch is turned on, the cruise control indicator light (vehicle-to-vehicle distance control mode) and "RADAR READY" indicator come on. This indicates the control condition (presence or absence of a vehicle in front, vehicle-to-vehicle distance, and set vehicle speed) and fail-safe state through the CAN communication system. The master warning light and cruise control indicator light come on and vehicle-to-vehicle distance information is displayed on the combination meter assembly as the alarm buzzer sounds. Items such as "CLEAN RADAR SENSOR", "CRUISE CONTROL NOT AVAILABLE", "CHECK CRUISE CONTROL SYSTEM", "ADJUSTING FRONT RADAR BEAM" and "RADAR READY" are displayed on the multi-information display on the combination meter assembly when the driving support ECU assembly detects signals from each sensor, and actuator and sends them to the combination meter assembly via CAN.

HINT
If the vehicle in front in the same lane significantly decreases vehicle speed or another vehicle moves in front of your vehicle, adequate deceleration cannot be applied by the cruise control system and the vehicle-to-vehicle distance will shorten. At this time, the system sounds the buzzer and the master warning light blinks to warn the driver. Each indicator in the dynamic radar cruise control uses CAN for communication. Therefore, if there are any malfunctions in this circuit, check for DTCs in the CAN communication system before troubleshooting this circuit.

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

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

(e) Check the cruise control indicator light by performing Active Test.

Combination Meter





OK:

The display changes in accordance with Active Test operation.

NG -- REPLACE COMBINATION METER ASSEMBLY Removal
OK -- Continue to next step.

2. READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Turn the Techstream on.

(d) Enter the following menus: Powertrain / Radar Cruise / Data List.

(e) Check the Data List to confirm function of the cruise control indicator light.

Radar Cruise





OK:

The display changes in accordance with switch operation.

NG -- REPLACE DRIVING SUPPORT ECU ASSEMBLY Removal

OK -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Dynamic Radar Cruise Control System