Toyota Sienna Service Manual: Power Slide Door Pulse Sensor Malfunction on
Rear Left Door
DTC B2224 Power Slide Door Pulse Sensor Malfunction on
Rear Left Door
DESCRIPTION
- A pulse sensor is built into slide door LH for jam and foreign
object detection and for slide door position
detection. The jam and foreign object detection feature of the pulse sensor
monitors the operating
speed of the slide door while the power slide door is in operation. The
slide door position detection
feature of the pulse sensor monitors where the slide door is. If the slide
door position detection feature
outputs a pulse signal that is out of the normal range, the power slide door
ECU LH will set DTC
B2224.
- If DTC B2224 is set, the power slide door system will be turned
off. Thus, the slide door can be moved
freely and will be switched to manual operation mode (not electrically
controlled).
- In order to restore the power slide door system to normal
operation mode, first solve the problem
indicated by DTC B2224 and then manually close the slide door fully (reset
operation).
DTC No. |
DTC Detection Condition |
Trouble Area |
B2224 |
Power slide door LH does not operate |
- Wire harness
- Power slide door control motor and clutch LH
- Power slide door ECU LH
|
WIRING DIAGRAM

INSPECTION PROCEDURE
1 CHECK WIRE HARNESS (MOTOR AND CLUTCH LH - POWER SLIDE DOOR ECU LH)

- Disconnect the P21 motor and clutch, and the P25 ECU
connectors.
- Check the continuity between the wire harness side
connectors.
Resistance (Check for open circuit)

2 INSPECT SLIDE DOOR CONTROL MOTOR AND CLUTCH ASSEMBLY LH

- Remove the motor and clutch.
- Connect the battery positive (+) lead to terminal 3 and
battery negative (-) terminal lead to terminal 2.
- Apply battery voltage to the terminals and check the
motor operation.
OK

- Check the resistance of the clutch terminals.
Resistance

- Reinstall the motor and clutch with the connector
connected.

- Check the pulse of the pulse sensor.
- Using an oscilloscope, check the pulse generated
when the door is manually opened and closed.
Reference

HINT:
A cycle of the pulse changes between approx. 10 to
20 msec. according to the speeds that the slide door
is moving.
NOTICE:
When disconnecting the control motor and
clutch, initialize the power slide door system.
REPLACE POWER SLIDE DOOR ECU LH
DTC B2223 Power Slide Door Pulse Sensor Malfunction on
Rear Right Door
DESCRIPTION
A pulse sensor is built into slide door RH for jam and foreign
object detection and for slide door pos ...
DESCRIPTION
The power slide door operates only when the power slide door main
switch is ON (switch free: orange
paint on the top of the switch appears). The power slide door ECU LH
c ...
Other materials:
Sound Signal Circuit between Video Terminal and Television Display
DESCRIPTION
This is the sound signal circuit from the video (video adapter) terminal to
the television display assembly.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 CHECK HARNESS AND CONNECTOR (TELEVISION DISPLAY ASSEMBLY - VIDEO
TERMINAL)
Disconnect the connectors from the video (vide ...
Short to GND in Driver Side Squib 2nd Step Circuit
DTC B1182/19 Short to GND in Driver Side Squib 2nd Step Circuit
DESCRIPTION
The driver side squib 2nd step circuit consists of the center airbag sensor
assembly, the spiral cable and
the steering pad.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1182/19 ...
Inner rear view mirror
COMPONENTS
REMOVAL
1. REMOVE INNER REAR VIEW MIRROR ASSEMBLY
w/ EC mirror:
Remove the inner rear view mirror cover.
w/ EC mirror:
Disconnect the connector.
Remove the screw.
Remove the inner rear view mirror assembly as
shown in the illustration.
IN ...