Toyota RAV4 manuals

Toyota Sienna Service Manual: PBD Pulse Sensor Malfunction

DTC B2222 PBD Pulse Sensor Malfunction

DESCRIPTION

DTC No.

DTC Detection Condition

Trouble Area

B2222

Power back door does not operate
  • Wire harness
  • Power back door drive unit
  • Power back door ECU

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

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

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

  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

2 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.

 INSPECT POWER BACK DOOR DRIVE UNIT

  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

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 drive unit, initialize the power back door system

REPLACE POWER BACK DOOR ECU

Diagnostic trouble code chart
If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below. (Proceed to the page given for that circuit.) POWER BACK DOOR SYSTEM ...

Power Back Door does not Operate
DESCRIPTION The power back door operates only when the power back door main switch is ON. The power back door ECU controls the power back door by activating the back door motor (built into ...

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