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
INSPECTION PROCEDURE
1 INSPECT WASHER SYSTEM
- Check that the front washer operates.
OK: Washer function is normal.
2 CHECK HARNESS AND CONNECTOR (DISTANCE CONTROL ECU - WINDSHIELD WIPER SWITCH)
- Disconnect the D2 distance control ECU connector and C12 windshield wiper switch connector.
- Measure the resistance according to the value(s) in the table below.
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:
IG Power Source Circuit
DESCRIPTION
The main power source is supplied to the A/C amplifier when the ignition
switch is turned to the ON
position.
The power source is used for operating the A/C amplifier and servo motor, etc.
WIRING DIAGRAM
INSPECTION PROCEDURE
HINT:
Start the engine before inspection. Check ...
ON / OFF Indication Parameter Error
DTC 01-E2 ON / OFF Indication Parameter Error
DESCRIPTION
DTC No.
DTC Detection Condition
Trouble Area
01-E2
The command for ON/OFF control from the master
device has a problem.
Radio receiver
INSPECTION PROCEDURE
HINT:
After the inspection is ...
Initialization
1. RESET
Reset the power slide door system:
The power slide door ECU records the fully open
position of the power slide door in its memory and
the power slide door fully opens and closes based
on this memory. The power slide door cannot
operate without this memory. In the case wh ...
