Toyota RAV4 manuals

Toyota Sienna Service Manual: Fold Seat Switch Circuit

DESCRIPTION

When the fold seat switch is operated, a switch operation signal is sent to the fold seat control ECU. The ECU receives switch operation signals from each switch and activates the folding motor, reclining motor, and release actuator.

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 INSPECT FOLD SEAT SWITCH

  1. Remove the fold seat switch.

INSPECT FOLD SEAT SWITCH

  1. Disconnect the connector from the fold seat switch.
  2. 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 SEAT SWITCH - FOLD SEAT CONTROL ECU)

CHECK HARNESS AND CONNECTOR

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

Standard resistance: LH side

Standard resistance

RH side

Standard resistance

4 CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - FOLD SEAT SWITCH)

CHECK HARNESS AND CONNECTOR

  1. Disconnect the connector from the back door courtesy switch.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance: LH side

Standard resistance

RH side

Standard resistance

5 INSPECT BACK DOOR COURTESY SWITCH

INSPECT BACK DOOR COURTESY SWITCH

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

Standard resistance

Standard resistance

6 CHECK HARNESS AND CONNECTOR (BACK DOOR COURTESY SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR

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

Standard resistance

Standard resistance

REPLACE FOLD SEAT CONTROL ECU

Power Source Circuit
DESCRIPTION Power is supplied to the fold seat control ECU through the L-RR2 SEAT and R-RR2 SEAT fuses. WIRING DIAGRAM INSPECTION PROCEDURE 1 INSPECT FUSE (L-RR2 SEAT, R-RR2 SEAT) Re ...

Folding Motor Circuit
DESCRIPTION The fold seat control ECU receives a switch operation signal from the fold seat switch and activates the folding motor. At this time, the Hall IC (seat cushion position sensor) detects ...

Other materials:

Steering wheel audio switches
Some audio features can be controlled using the switches on the steering wheel. Operation may differ depending on the type of audio system or navigation system. For details, refer to the manual provided with the audio system or navigation system. Operating the audio system using the steering ...

Customize parameters
HINT: The following items can be customized. NOTICE:  After confirming whether the items requested by the customer are applicable or not for customization, perform customizing operations.  Be sure to record the current settings before customization.  When troubleshooti ...

Diagnosis system
1. CHECK DLC3  The vehicle's ECU uses ISO 15765-4 for communication protocol. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. NOTICE: *: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not ...

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