Toyota RAV4 manuals

Toyota Sienna Service Manual: Key Lock-in Prevention Function does not Work Properly (Manual Operation and Operation Interlocked with Key are Active)

Toyota Sienna Service Manual / Door lock / Power door lock control system / Data list / active test / Key Lock-in Prevention Function does not Work Properly (Manual Operation and Operation Interlocked with Key are Active)

DESCRIPTION

The un-lock warning switch turns ON when the key is inserted in the ignition key cylinder. The courtesy light switch turns ON when the driver side door is opened. These 2 switches are monitored by the body ECU.

In order to prevent the key from being locked in, the body ECU controls door locking operation according to the conditions of these switches so that the doors are not locked.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 INSPECT FUSE (ECU-B)

  1. Remove ECU-B fuse from engine room junction block.
  2.  Measure the resistance.

Standard resistance: Below 1 Ω

2 READ VALUE OF DATA LIST

  1. Using the intelligent tester, check that the un-lock warning switch signal is output when the switch is operated.

BODY (Multiplex network body ECU)

BODY (Multiplex network body ECU)

3 INSPECT UN-LOCK WARNING SWITCH ASSEMBLY

 INSPECT UN-LOCK WARNING SWITCH ASSEMBLY

  1. Remove the un-lock warning switch.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

4 CHECK HARNESS AND CONNECTOR (UN-LOCK WARNING SWITCH ASSEMBLY - DRIVER SIDE J/B)

CHECK HARNESS AND CONNECTOR (UN-LOCK WARNING SWITCH ASSEMBLY - DRIVER SIDE J/B)

  1. Disconnect the K4 switch and B6 body ECU connectors.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)

5 READ VALUE OF DATA LIST

  1. Using the intelligent tester, check that the driver side door courtesy light switch signal s output when the switch is operated.

BODY (Multiplex network body ECU)

BODY

6 INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE)

INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (DRIVER SIDE)

  1. Remove the courtesy light switch.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

7 CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - DRIVER SIDE J/B)

CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH - DRIVER SIDE J/B)

  1. Disconnect the D7 switch and B9 body ECU connectors.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY (MULTIPLEX NETWORK BODY ECU)

All Doors cannot be Locked / Unlocked at Once
DESCRIPTION The body ECU receives a switch signal from the master switch, the door control switch, the driver door key cylinder and the passenger door key cylinder and then drives the door lock ...

Only Back Door cannot be Opened
DESCRIPTION With power back door: The signal for manual locking/unlocking operation of the driver/passenger side door and the signal for locking/unlocking operation interlocked with the driver s ...

Other materials:

Erasing the entire HomeLink® memory (all three programs)
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Rear Occupant Classification Sensor LH Circuit Malfunction
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Installation
1. INSTALL FRONT DOOR WINDOW FRAME MOULDING Remove the tape from the front door window frame moulding. Clean the contact surface of the vehicle body with white gasoline. Clean the outer circumference of the front door window frame moulding with white gasoline. Apply new double-si ...

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