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Toyota Sienna Service Manual: Jam Protection Function Activates During Power Back Door Operation

Toyota Sienna Service Manual / Engine hood / door / Power back door system / Diagnostic trouble code chart / Jam Protection Function Activates During Power Back Door Operation

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK DTC

  1. Check for DTC B2222. DTC B2222 indicates a pulse sensor malfunction.
  1. Without code outputs, proceed to A.
  2. With code outputs, proceed to B.

2 VISUALLY CHECK

  1. Check for foreign objects on the operating area.

3 MANUAL OPERATION

  1. Turn off* the power door main switch in order to locate the area where reverse operation has been triggered.

    * OFF is the condition when the orange paint on the top of the switch does not appear

  2. Move the back door manually, and then check to make sure no obstacles are present (no extra resistance) around the reverse operation area and that the back door smoothly operates.

4 READ VALUE OF INTELLIGENT TESTER

  1. Using the intelligent tester, check the DATA LIST for proper functioning of the power back door touch sensor LH.

OK (Power back door ECU):

Power back door ECU

5 INSPECT POWER BACK DOOR TOUCH SENSOR LH

INSPECT POWER BACK DOOR TOUCH SENSOR LH

Resistance

Resistance

6 CHECK WIRE HARNESS (POWER BACK DOOR TOUCH SENSOR LH - POWER BACK DOOR ECU)

CHECK WIRE HARNESS

  1. Disconnect the P15 switch and P13 ECU connectors.
  2. Check the resistance between the wire harness side connectors.

Resistance (Check for open circuit)

Check for open circuit

REPLACE POWER BACK DOOR ECU

7 READ VALUE OF INTELLIGENT TESTER

  1. Using the intelligent tester, check the DATA LIST for proper functioning of the power back door touch sensor RH

OK (Power back door ECU):

Power back door ECU

8 CHECK POWER BACK DOOR TOUCH SENSOR RH

CHECK POWER BACK DOOR TOUCH SENSOR RH

Resistance

Resistance

9 CHECK WIRE HARNESS (POWER BACK DOOR TOUCH SENSOR RH - POWER BACK DOOR ECU)

CHECK WIRE HARNESS

  1. Disconnect the P16 switch and P13 ECU connectors.
  2. Check the resistance between the wire harness side connectors.

Resistance (Check for open circuit)

Check for open circuit

REPLACE POWER BACK DOOR ECU

10 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Select the ACTIVE TEST and then check that the power back door drive unit operates.

HINT: During the ACTIVE TEST, the intelligent tester sends a signal to the power back door ECU to drive the drive unit.

If the drive unit operates, the drive unit itself and the wire harness between the drive unit and power back door ECU are considered to be functioning normally.

OK (Power back door ECU):

Power back door ECU

11 INSPECT POWER BACK DOOR DRIVE UNIT

INSPECT POWER BACK DOOR DRIVE UNIT

  1. Remove the unit.
  2. Connect the battery positive (+) lead to terminal 3 and battery negative (-) terminal lead to terminal 9.
  3. Apply battery voltage to the terminals and check the motor operation.

OK

INSPECT POWER BACK DOOR DRIVE UNIT

  1. Check the resistance of the clutch terminals.

Resistance

Resistance

  1. Reinstall the unit with the connector connected.

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

Reference

INSPECT POWER BACK DOOR DRIVE UNIT

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 drive unit, initialize the power back door system

12 CHECK WIRE HARNESS (POWER BACK DOOR DRIVE UNIT - POWER BACK DOOR ECU)

CHECK WIRE HARNESS

  1. Disconnect the P12 unit and P13 ECU connectors.
  2. Check the resistance between the wire harness side connectors.

Resistance (Check for open circuit)

Check for open circuit

REPLACE POWER BACK DOOR ECU

Power Back Door does not Operate
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