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:

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 multip ...

Detection range of the sensors
Approximately 2.0 ft. (60 cm) Approximately 2.8 ft. (85 cm) Approximately 5.9 ft. (180 cm) The diagram shows the detection range of the sensors. Note that the sensors cannot detect obstacles that are extremely close to the vehicle. The range of the sensors may change depending ...

Disassembly
1. REMOVE FRONT DIFFERENTIAL RING GEAR (a) Place matchmarks on the front differential ring gear and differential case. (b) Remove the 14 bolts. (c) Using a plastic hammer, tap on the front differential ring gear to remove it from the case. 2. REMOVE FRONT DIFFERENTIAL CASE FRONT TA ...

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