Toyota RAV4 manuals

Toyota Sienna Service Manual: Reclining Motor Circuit

DESCRIPTION

The fold seat control ECU receives a switch operation signal from the power rear no. 2 seat switch and the fold seat switch, and activates the reclining motor. At this time, the Hall IC (seatback position sensor) detects the actuation of the seatback and sends a seatback actuation signal to the fold seat control ECU.

The fold seat control ECU uses signals from the Hall IC (seatback position sensor) to detect if an object is caught or if any other abnormal condition has occurred.

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 - RECLINING MOTOR)

CHECK HARNESS AND CONNECTOR

  1. Disconnect the connectors from the fold seat control ECU.

CHECK HARNESS AND CONNECTOR

  1. Disconnect the connectors from the reclining motor.
  2. Measure the resistance according to the value(s) in the table below.

Standard resistance: LH side

Standard resistance

RH side

Standard resistance

Standard resistance

3 INSPECT RECLINING MOTOR

INSPECT RECLINING MOTOR

  1. Check reclining motor operation.
  1.  Check if the motor rotates smoothly when the battery is connected to the reclining motor.

OK: LH side

OK

RH side

OK

REPLACE FOLD SEAT CONTROL ECU

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 ...

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 b ...

Other materials:

Freeze frame data
1. FREEZE FRAME DATA (a) The vehicle (sensor) status, stored during ABS and/ or VSC operation or at the time of an error code detection, can be displayed by the intelligent tester. (b) Only one record of freeze frame data is stored and the freeze frame data generated during ABS and/or VSC op ...

Clearance warning ECU
COMPONENTS REMOVAL 1. REMOVE FRONT DOOR SCUFF PLATE LH 2. REMOVE COWL SIDE TRIM BOARD LH 3. REMOVE INSTRUMENT PANEL FINISH PANEL SUBASSEMBLY LOWER LH 4. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD INSERT SUB-ASSEMBLY 5. REMOVE CLEARANCE WARNING ECU  Disconnect each connector. &nb ...

Precaution
1. Check that the battery cables are connected to the correct terminals. 2. Disconnect the battery cables when the battery is given a quick charge. 3. Do not perform tests with a high voltage insulation resistance tester. 4. Never disconnect the battery cables while the engine is runnin ...

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