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:

Adjustment
CAUTION:  Do not stare at the luminous portion of the laser during adjustment. The intensity of the laser light is low, but it may result in loss of sight.  If operation is not carried out as specified, there may be a risk that you are exposed to hazardous radiation. HINT: ...

Throttle Actuator Control System
DESCRIPTION The throttle actuator is operated by the ECM, and opens and closes the throttle valve using the gears. The opening angle of the throttle valve is detected by the Throttle Position (TP) sensor, which is mounted on the throttle body. The TP sensor provides feedback to the ECM ...

Radio Broadcast cannot be Received or Poor Reception
INSPECTION PROCEDURE 1 CHECK RADIO AND NAVIGATION ASSEMBLY Check the radio's automatic station search function. Check the radio's automatic station search function by activating it. OK: The radio's automatic station search function works properly. 2 INSPECT RADIO AND NAVIGATION AS ...

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