Cruise Main Indicator Light Circuit

CRUISE CONTROL: DYNAMIC LASER CRUISE CONTROL SYSTEM: Cruise Main Indicator Light Circuit

Cruise Main Indicator Light Circuit

DESCRIPTION

When the cruise control main switch is on, CRUISE main indicator light comes 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 multiplex communication system and CAN communication system. The master warning light and CRUISE main indicator light come on and vehicle-to-vehicle distance information is displayed on the combination meter as the alarm buzzer sounds. Items such as "CLEAN RADAR SENSOR", "CRUISE NOT AVAILABLE", "CHECK CRUISE SYSTEM" and "RADAR READY" are displayed in the multi-information display on the combination meter when the hybrid vehicle control ECU detects signals from each sensor and actuator and sends them to the combination meter via CAN and BEAN.
HINT: If the vehicle in front in the same lane significantly decreases vehicle speed or another vehicle pulls in front of your vehicle, adequate deceleration cannot be applied 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 laser cruise control uses CAN and BEAN for communication. Therefore if there are any malfunctions in this circuit, check for DTCs in the CAN communication and multiplex communication systems before troubleshooting this circuit.

INSPECTION PROCEDURE

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Combination Meter / Active Test.
(e) Check the CRUISE main indicator light by performing the Active Test.

Combination Meter:





OK:
Indicator light blinks/goes off.
NG -- REPLACE COMBINATION METER
OK -- Continue to next step.
2. READ VALUE USING TECHSTREAM
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to the ON position.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Laser Cruise / Data List.
(e) Check the Data List for proper functioning of the CRUISE main indicator light.

Hybrid Vehicle Control ECU (Laser Cruise):





OK:
When cruise control main switch operation is performed, the result will be same as above.
HINT: 1 is OK, but 2 is NG -> DTC output or hybrid vehicle control ECU failure

NG -- REPLACE HYBRID VEHICLE CONTROL ECU
OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE