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:

Seat heaters
For driver’s seat For front passenger’s seat On The indicator light comes on. Adjusts the seat temperature The further you move the dial upward, the warmer the seat becomes. The seat heaters can be used when the engine switch is in the “ON” position (vehicles ...

Rear power window switch
INSPECTION 1. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY REAR  Check the resistance between the switch terminals when the switch is operated. Standard If the result is not as specified, replace the switch assembly. ...

Fuses
General information The fuses are located at different places in the vehicle. Safety information Warning Incorrect and repaired fuses can overload electrical lines and components. There is a risk of fire. Never attempt to repair a blown fuse. Do not replace a nonworking fuse with a substitute of an ...

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