Toyota Sienna Quiz
Lighting

Parking Brake Switch Circuit

In this manual: Lighting
Introduction — 55Service specifications — 7Maintenance — 7Engine — 264U151e automatic transaxle — 108Transfer — 19Propeller shaft — 8Drive shaft — 14Differential — 16Axle — 18Suspension — 37Tire and wheel — 54Brake control — 141Parking brake — 16Steering Column — 11Power steering — 18Air conditioning — 106Supplemental restraint system — 146Seat belt — 22Theft deterrent — 14Engine immobiliser — 17Cruise control — 65Lighting — 61Wiper and washer — 13Door lock — 42Meter — 28Audio / visual — 94Navigation — 108Park assist / monitoring — 33Horn — 5Garage door opener — 42GR-FE Engine control system — 126Supplemental restraint system — 147Other system — 14Windshield / windowglass — 43Mirror — 23Instrument panel — 6Seat belt — 22Seat — 92Engine hood / door — 104Exterior — 39Interior — 5Sliding roof — 9Multiplex communication — 18Can communication — 23
5steps
~30min
2/5difficulty
Done 0 of 5

DESCRIPTION

The Multiplex network body ECU receives parking brake switch signal.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 READ VALUE OF INTELLIGENT TESTER

  1. Connect the intelligent tester to DLC3.
  2. Turn the ignition switch ON and push the intelligent tester main switch ON.
  3. Select the items below in the DATA LIST, and read the displays on the intelligent tester.

BODY NO.1:

BODY NO.1

2 INSPECT PARKING BRAKE SWITCH ASSEMBLY

  1. Check that there is resistance between the terminal and the body ground when parking brake switch is operated.

Resistance:
ON (When shaft is pressed): No continuity: 10 kΩ or higher
OFF (When shaft is not pressed): Continuity: Below 1 Ω

3 CHECK HARNESS AND CONNECTOR

  1. Disconnect the 1K connector from instrument panel junction block assembly
    CHECK HARNESS AND CONNECTOR
  2. Check the resistance between the terminal 1K-10 of the instrument panel junction block assembly connector side and body ground
    CHECK HARNESS AND CONNECTOR

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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