Cruise Main Indicator Light Circuit: Description

When the cruise control main switch is ON, CRUISE main indicator light and READY indicator light comes on.

This indicates the control condition (the front vehicle, vehicle-to-vehicle distance, and set vehicle speed) and fail-safe state through the multiplex communication system. The master warning light, CRUISE main indicator light come on and vehicle-to-vehicle distance information is displayed on the combination meter as the alarm buzzer sounds.

HINT:

If the front vehicle in the same lane significantly decreases vehicle speed or another vehicle cuts 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.

HINT:

When not using a intelligent tester, go to combination meter system (See HOW TO PROCEED WITH TROUBLESHOOTING ).

1. READ VALUE OF INTELLIGENT TESTER 
   1. Connect the intelligent tester to the DLC3.
   2. Turn the ignition switch to the ON position, and turn the intelligent tester main switch ON.
   3. Select the item "CCS INDICATOR M", "CCS INDICATOR S", "CCS READY M" or "CCS READY S" in the DATA LIST, and read its value displayed on the intelligent tester.
   4. Check the CRUISE main indicator light and READY indicator light, when the cruise control main switch is ON and OFF.

   ECM: 

   ECM DATA LIST
   
   

   Item	Measurement Item / Display (Range)	Normal Condition	Diagnostic Note
   CCS READY M	Cruise control system stand by condition (Main CPU) / ON or OFF	ON <--> OFF: Change ON / OFF each time Main SW is pushed in.	*1
   CCS READY S	Cruise control system stand by condition (Sub CPU) / ON or OFF	ON <--> OFF: Change ON / OFF each time Main SW is pushed in.	*1
   CCS INDICATOR M	Cruise indicator signal (Main CPU) / ON or OFF	ON : "CCS READY" ON OFF : "CCS READY" OFF	*2
   CCS INDICATOR S	Cruise indicator signal (Sub CPU) / ON or OFF	ON : "CCS READY" ON OFF : "CCS READY" OFF	*2
   HINT: *1 is OK, but *2 is NG --> DTC output or ECM failure

   NG : GO TO  COMBINATION METER SYSTEM 

   OK : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE