Toyota RAV4 manuals

Toyota Sienna Service Manual: Wiper Signal Circuit

DESCRIPTION

The distance control ECU detects wiper operation. If the windshield wipers operate in the HI or LO mode, the cruise control is canceled and the warning sound "pong" is emitted once. In addition, the following warnings will continue until the cruise control main switch is turned off:

After HI or LO wiper operation stops, pushing the cruise control main switch to + (ACCEL)/RES (RESUME) will resume the vehicle speed set prior to cancellation.

Cruise control is available when the windshield wipers operate in the intermittent mode.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT WIPER SYSTEM

Check that the windshield wipers operate in HI mode.

OK: Wiper function is normal.

2 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - WINDSHIELD WIPER SWITCH)

CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - WINDSHIELD WIPER SWITCH)

  1. Disconnect the D2 distance control ECU connector and C12 windshield wiper switch connector.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

Laser Sensor Power Source Circuit
DESCRIPTION This circuit provides power to the laser sensor. The laser sensor emits radio waves towards an object in front and measures the distance and direction of the object by receiving the ...

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 ...

Other materials:

Checking and replacing fuses
If any of the electrical components do not operate, a fuse may have blown. If this happens, check and replace the fuses as necessary. Turn the engine switch to the “LOCK” position (vehicles without a smart key system) or off (vehicles with a smart key system). Open the fuse box cover. ...

Removal
1. PRECAUTION CAUTION: Be sure to read "PRECAUTION" thoroughly before servicing. 2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait for 90 seconds after disconnecting the cable to prevent the airbag working. 3. REMOVE FRONT SEAT ASSEMBLY (for Manual Seat) 4. REMOVE ...

DTC check / clear
1. DTC CHECK  Connect the intelligent tester to the DLC3.  Connect the intelligent tester to the Controller Area Network Vehicle Interface Module (CAN VIM). Then connect the CAN VIM to the Data Link Connector 3 (DLC3).  Turn the ignition switch to the ON posi ...

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