Toyota Sienna Service Manual: Release Actuator Circuit

Toyota Sienna Service Manual / Seat / Rear no. 2 Seat assembly (w/ Power Stowing Function) / On-vehicle inspection / Release Actuator Circuit

DESCRIPTION

The fold seat control ECU receives a switch operation signal from the fold seat switch and activates the release actuator. The release actuator releases the lock of the stowed seat based on a drive voltage received from the ECU.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT FOLD SEAT CONTROL ECU

INSPECT FOLD SEAT CONTROL ECU

Remove the fold seat control ECU with connector still connected.
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 - FOLDING MOTOR)

CHECK HARNESS AND CONNECTOR

Disconnect the connectors from the fold seat control ECU.
Disconnect the connector from the folding motor.
Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

Standard resistance

RH sid

Standard resistance

3 CHECK HARNESS AND CONNECTOR (FOLDING MOTOR - BODY GROUND)

CHECK HARNESS AND CONNECTOR

Measure the resistance according to the value(s) in the table below.

Standard resistance LH side

Standard resistance

RH side

Standard resistance

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

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