Toyota Sienna Quiz
Park assist / monitoring

Indicator 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 indicator displays the location of the obstacle and the approximate distance between the vehicle and the obstacle either by blinking or turning on.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - AIR CONDITIONER AMPLIFIER)

CHECK HARNESS AND CONNECTOR (CLEARANCE WARNING ECU - AIR CONDITIONER AMPLIFIER)
  1. Disconnect the connectors from the clearance warning ECU C9 and air conditioner amplifier connector A10 or A11.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

2 INSPECT INDICATOR

INSPECT INDICATOR
  1. Remove the integration control & panel assembly with the connectors being connected.
  2. Using a service wire, ground each terminal of the integration control & panel assembly connector.
  3. Turn the ignition switch ON.
  4. Check that each LED comes on.
    INSPECT INDICATOR

Result

Result

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

3 INSPECT PRINTED WIRE INTEGRATION BOARD SUB-ASSEMBLY

  1. Check the malfunction disappears when a known good printed wire integration board sub-assembly is installed

OK: Malfunction disappears.

REPLACE PRINTED WIRE INTEGRATION BOARD SUB-ASSEMBLY

4 INSPECT INTEGRATION PANEL SUB-ASSEMBLY

  1. Check that the malfunction disappears when a known good integration panel sub-assembly is installed.

OK: Malfunction disappears

REPLACE INTEGRATION PANEL SUB-ASSEMBLY

Test yourself

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