Toyota RAV4 manuals

Toyota Sienna Service Manual: Lock Switch Circuit

DESCRIPTION

Each of the left and right seats has lock switches that detect the lock condition of the seat legs to the floor when the seat is in the original or folded-down state. If any of the lock switches detect an unlock condition, the 3rd SEAT indicator on the combination meter will come on and the folding-down, return, and reclining operations will be disabled.

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 connector 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 - LOCK SWITCH)

CHECK HARNESS AND CONNECTOR

  1. Disconnect the connectors from the fold seat control ECU.
  2.  Disconnect the connector from the lock switch.
  3.  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 (LOCK SWITCH - BODY GROUND)

CHECK HARNESS AND CONNECTOR

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

Standard resistance LH side

Standard resistance

RH side

Standard resistance

4 REPLACE LOCK SWITCH

HINT: Since the lock switch cannot be inspected while it is removed from the vehicle, replace the lock switch with a normal one and check that the condition returns to normal.

OK: Same problem does not occur.

REPLACE FOLD SEAT CONTROL ECU

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 ...

Rear Power Seat Switch Circuit
DESCRIPTION When the power rear no. 2 seat switch is operated, a recline signal is sent to the fold seat control ECU. The ECU activates the reclining motor based on the signal from the power rea ...

Other materials:

Vvt sensor
COMPONENTS ON-VEHICLE INSPECTION 1. CHECK VVT SENSOR OUTPUT VOLTAGE (a) Turn the ignition switch to the ON position. (b) Check the voltage between the specified terminal and body ground. Standard voltage (c) While turning the crankshaft pulley by hand, measure the voltage betwe ...

Illumination Circuit
DESCRIPTION Power is supplied to the radio and navigation assembly and steering pad switch illumination when the light control switch is in the TAIL or HEAD position. WIRING DIAGRAM INSPECTION PROCEDURE NOTICE: The vehicle is equipped with an SRS (Supplemental Restraint System) such as t ...

Sliding door child-protector locks
The sliding door cannot be opened by the inside door handle and the second seat sliding door switch when the lock is set. Unlock Lock These locks can be set to prevent children from opening the sliding doors. Push down on each sliding door switch to lock that sliding door. The p ...

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