Toyota Sienna Quiz
Park assist / monitoring

Park / Neutral Position Switch Circuit

In this manual: Park assist / monitoring
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
6steps
~36min
2/5difficulty
Done 0 of 6

DESCRIPTION

The clearance warning ECU receives the reverse or park position signal from the park / neutral position switch.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT CLEARANCE WARNING ECU

INSPECT CLEARANCE WARNING ECU
  1. Disconnect the C9 connector from the clearance warning ECU.
  2. Measure the voltage according to the value(s) in the table below.

Standard voltage

2 CHECK HARNESS AND CONNECTOR

CHECK HARNESS AND CONNECTOR
  1. Disconnect the connector from the park / neutral position switch.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 INSPECT PARK / NEUTRAL POSITION SWITCH

INSPECT PARK / NEUTRAL POSITION SWITCH
  1. Disconnect the park / neutral position switch connector P1.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPAIR OR REPLACE HARNESS OR CONNECTOR

Test yourself

A quick Toyota Sienna quiz: every answer comes with an explanation and a link to the manual page.