RX400h · Service Manual BODY

B2215 Back door does not operate

Diagnostic trouble codes

DESCRIPTION

This DTC is output when the position switch in the back door has a malfunction. This position switch detects if the back door is in the open/close position and sends a position signal to the power back door ECU.
DTC No.
DTC Detection Condition
Trouble Area
B2215
Back door does not operate
  1. Back door lock assembly
  2. Power back door ECU
  3. Wire harness

NOTICE:
The power back door ECU records the back door positions in the memory. In the case where any of the batteries, fuses, power back door ECU and power back door drive unit are removed and then reinstalled, the power back door ECU loses the memory of the door positions. In such a case, resetting the power back door system is necessary. Refer to the resetting operation specified in page Click here.


WIRING DIAGRAM

B112749E03

INSPECTION PROCEDURE


1. CHECK WIRE HARNESS (BACK DOOR LOCK ASSEMBLY - POWER BACK DOOR ECU)

  1. B111702E07
    Disconnect the back door lock assembly connectors.

  1. Disconnect the power back door ECU connectors.

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

    Standard resistance:
    Tester Connection
    Condition
    Specified Condition
    B12-8 - P10-21 (POS)
    Always
    Below 1 Ω
    B12-9 - Body ground
    Always
    Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


2. INSPECT BACK DOOR LOCK ASSEMBLY (DOOR LOCK MOTOR)

  1. B069878E01
    Check operation of the door lock.
    1. Using a screwdriver, push the latch in order to put the back door lock in the locked condition (full-latch position).

    2. Apply battery voltage and check operation of the latch.

      OK:
      Measurement Condition
      Specified Condition
      Battery positive (+) → Terminal 7
      Battery negative (-) → Terminal 5
      Latch turns to open-latch position

    3. Check motor operation when battery voltage is applied to the terminals.

      OK:
      Measurement Condition
      Specified Condition
      Battery positive (+) → Terminal 5
      Battery negative (-) → Terminal 7
      Close operation (Full-latch)
      Battery positive (+) → Terminal 7
      Battery negative (-) → Terminal 5
      Release operation (Open-latch)



NG
REPLACE BACK DOOR LOCK ASSEMBLY
OK


3. INSPECT BACK DOOR LOCK ASSEMBLY (SWITCH)

  1. B112750E01
    Measure the position switch resistance.
    1. Connect the battery positive (+) lead to connector terminal 7 and the negative (-) lead to connector terminal 5.

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

      Standard resistance:
      Tester Connection
      Driven Gear Position
      Specified Condition
      8 - 9
      Release
      Below 1 Ω

    3. Connect the battery positive (+) lead to connector terminal 5 and the negative (-) lead to connector terminal 7.

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

      Standard resistance:
      Tester Connection
      Driven Gear Position
      Specified Condition
      8 - 9
      Close
      10 kΩ or higher



NG
REPLACE BACK DOOR LOCK ASSEMBLY
OK

REPLACE POWER BACK DOOR ECU


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