Toyota RAV4 manuals

Toyota Sienna Service Manual: Park / Neutral Position Switch Circuit

DESCRIPTION

The fold seat control ECU receives signals from the Park/Neutral position switch and controls the seat stowing and return operations. If the shift lever is in any position other than P the seat cannot be operated.

If the ignition switch is in ACC or IG the seat cannot be operated.

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.  Turn the ignition switch ON.
  3. 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 - PARK/NEUTRAL POSITION SWITCH)

CHECK HARNESS AND CONNECTOR (FOLD SEAT CONTROL ECU - PARK/NEUTRAL POSITION SWITCH)

  1. Disconnect the connector from the park/neutral position switch.
  2.  Disconnect the connectors from the fold seat control ECU.
  3.  Measure the resistance according to the value(s) in the table below.

Standard resistance: LH side

Standard resistance

RH side

Standard resistance

3 INSPECT PARK/NEUTRAL POSITION SWITCH

INSPECT PARK/NEUTRAL POSITION SWITCH

  1. Remove the park/neutral position switch.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

4 CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH - BATTERY)

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

Standard voltage

Standard voltage

REPLACE FOLD SEAT CONTROL ECU

On-vehicle inspection
1. CHECK POWER REAR NO. 2 SEAT with STOWING FUNCTION  Check the basic functions.  Operate the fold seat switch and power rear No.2 seat switch and check to make sure each seat ...

Back Door Courtesy Switch Circuit
DESCRIPTION The fold seat control ECU receives signals from the back door courtesy switch and detects the state of the back door (open/close). If the ECU does not detect that the back door is open ...

Other materials:

Using the radio
Radio operation Select “AM” or “FM” on the audio source selection screen to begin listening to the radio. Audio control screen Pressing the “AUDIO” button displays the audio control screen from any screens of the selected source. Audio source selection screen appears Pre ...

Terminals of ECU
1. POSITION CONTROL ECU AND SWITCH ASSEMBLY (POWER SEAT CONTROL SWITCH AND ECU)  Disconnect the P58 and P59 connectors. Check the voltage of each terminal of the wire harness side connectors. If the result is not as specified, there may be a malfunction in the wire harn ...

Releasing and stowing the seat belt (for the third center seat)
To release plate “B”, press the release button on buckle “B”. To release plate “A”, insert the key or plate “B” into the hole on buckle “A”. Retract the belt slowly when releasing and stowing the seat belt. Insert the seat belt plates into ...

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