Toyota RAV4 manuals

Toyota Sienna Service Manual: Cruise Main Indicator Light Circuit

DESCRIPTION

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

HINT: If the vehicle in front 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 multi-information display blinks to warn the driver.

INSPECTION PROCEDURE

1 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.
  2. Select the ACTIVE TEST, use the intelligent tester to generate a control command, and then check that the CRUISE main indicator light blinks.

METER:

METER

OK: Indicator light blinks/goes off.

2 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.  Check the DATA LIST for proper functioning of the CRUISE main indicator light.

ECM (Cruise control):

ECM (Cruise control)

OK: When the cruise control main switch is operated, the display changes as shown above.

HINT: "1" is OK, but "2" is NG → DTC output or ECM failure

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Washer Signal Circuit
DESCRIPTION The distance control ECU detects washer operation. The cruise control will be cancelled by the distance control ECU if the windshield wipers operate in the HI or LO mode. By detecting ...

TC and CG Terminal Circuit
DESCRIPTION Connecting terminals TC and CG of the DLC3 causes the system to enter the self-diagnostic mode. If a malfunction is present, DTCs will be output. HINT: When a particular warning ligh ...

Other materials:

Selecting conventional constant speed control mode
Constant speed control mode differs from vehicle-to-vehicle distance control mode. When constant speed control mode is selected, your vehicle will maintain a set speed regardless of whether or not there are other vehicles in the lane ahead. Press the “ON-OFF” button to activate the ...

Driving the vehicle
The following procedures should be observed to ensure safe driving: Starting the engine Driving With the brake pedal depressed, shift the shift lever to D. Release the parking brake. Gradually release the brake pedal and gently depress the accelerator pedal to accelerate the vehicle. ...

Data list / active test
HINT: By accessing the DATA LIST displayed on the intelligent tester, you can perform such functions as reading the values of switches and sensors without removing any parts. Reading the DATA LIST as the first step in troubleshooting is one method to shorten labor time. 1. DATA LIST FOR CENTER ...

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