Toyota RAV4 manuals

Toyota Sienna Service Manual: 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 washer operation, the distance control ECU allows the cruise control to continue even when the windshield wipers operate in the HI or LO mode.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT WASHER SYSTEM

  1. Check that the front washer operates.

OK: Washer 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

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 emitte ...

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 i ...

Other materials:

Low pitched horn
COMPONENTS REMOVAL 1. REMOVE FRONT BUMPER COVER ET-3 2. REMOVE LOW PITCHED HORN  Disconnect the connector.  Remove the bolt and horn. INSPECTION 1. INSPECT LOW PITCHED HORN  Apply battery voltage and check operation of the horn, as shown in the table. Stan ...

Removal
1. Remove rear wheel 2. Remove exhaust pipe assembly Hint: (see page ex-8) 3. Remove propeller with center bearing shaft assembly Hint: (see page pr-3) 4. REMOVE REAR DIFFERENTIAL FILLER PLUG (A) using a hexagon wrench (10 mm), remove the filler plug and gasket. 5. Remove rear differentia ...

Terminals of ecu
1. Terminal of ECU (*1): Models with dynamic laser cruise control (*2): 2WD model 2. Terminal Inspection (a) Disconnect the connector and measure the voltage or resistance on the wire harness side. HINT: Voltage cannot be measured with the connector connected to the skid control ECU ...

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