Toyota Sienna Quiz
Seat

Fold Lock Switch Circuit

In this manual: Seat
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

Each of the left and right seats has a fold lock switch that detects the lock condition of the seat legs and floor when the seat is in the stowed state. If the fold lock switch detects an unlock condition, the 3rd SEAT indicator on the combination meter will come on.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT FOLD SEAT CONTROL ECU

INSPECT FOLD SEAT CONTROL ECU
  1. Remove the fold seat control ECU with connectors still connected.
  2. Measure the voltage according to the value(s) in the table below.

Standard voltage LH side

Standard voltage

RH side

Standard voltage

2 CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - FOLD LOCK SWITCH)

CHECK HARNESS AND CONNECTOR
  1. Disconnect the connectors from the fold seat control ECU.
  2. Disconnect the connector from the fold lock switch.
  3. Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

Standard resistance

RH side

Standard resistance

3 CHECK HARNESS AND CONNECTOR (FOLD LOCK SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR
  1. Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

Standard resistance

RH side

Standard resistance

4 INSPECT FOLD LOCK SWITCH

INSPECT FOLD LOCK SWITCH
  1. Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

Standard resistance

RH side

Standard resistance

REPLACE FOLD SEAT CONTROL ECU

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