Toyota RAV4 manuals

Toyota Sienna Service Manual: Distance Control ECU Power Source Circuit

DESCRIPTION

This circuit provides power to operate the distance control ECU. The distance control ECU determines information about the vehicle in front based on data from the laser sensor, and then decides how much acceleration and/or deceleration is needed to maintain the set distance. The distance control ECU also requests the skid control ECU to apply braking and to sound the buzzer.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK HARNESS AND CONNECTOR

 CHECK HARNESS AND CONNECTOR

  1. Disconnect the D2 distance control ECU connector.
  2.  Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

  1. 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

Cruise Control Switch Circuit
DESCRIPTION The cruise control main switch operates 8 functions: SET, - (COAST), TAP-DOWN, RES (RESUME), + (ACCEL), TAP-UP, CANCEL, and MODE. The SET, TAP-DOWN, and - (COAST) functions, and the ...

Distance Control Switch Circuit
DESCRIPTION The distance control switch sets the vehicle-to-vehicle distance mode. The distance control switch is installed in the steering pad switch. The vehicle-to-vehicle distance set value ...

Other materials:

Customize parameters
1. Seat Belt Buzzer ON/OFF Setting The seat belt buzzer ON/OFF setting, which is a setting of the buzzer function of the combination meter, can disable the driver side seat belt buzzer and front passenger side seat belt buzzer. NOTICE: These buzzers should be on for safe driving. Perform ...

Inspection
1. INSPECT BRAKE CYLINDER AND PISTON (a) Check the brake cylinder bore and rear disc brake piston for rust or scoring. 2. INSPECT PAD LINING THICKNESS (a) Using a ruler, measure the pad lining thickness. Standard thickness: 11.0mm (0.433 in.) Minimum thickness: 1.0 mm (0.039 in.) 3. INS ...

DTC check / clear
1. CHECK DTC (USING INTELLIGENT TESTER) Checking DTCs. Connect the intelligent tester to the DLC3. Turn the ignition switch ON. Read DTCs by following the prompts on the tester screen. HINT: Refer to the intelligent tester operator's manual for further details. 2. CLEAR DTC ...

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