DTC B2250: Back Door Closer Operation Malfunction: Procedure

Fig 1: Identifying Back Door Lock (Sector Switch) Component & Connector Terminal Identification

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Remove the back door lock, refer to REMOVAL
2. Measure the resistance of the switch.

   Standard resistance

   Sector switch 

   Tester Connection	Door Lock Latch Position	Specified Condition
   6 (POS) - 4 (GND)	Open-latch	Below 1 Ω
   6 (POS) - 4 (GND)	Over-latch	10 kΩ or higher
   6 (POS) - 4 (GND)	Full-latch	10 kΩ or higher
   6 (POS) - 4 (GND)	Half-latch	10 kΩ or higher

NG → See step   3 

OK: Go to next step 

1. Disconnect the T4 door lock connector.
   Fig 2: Identifying Back Door Lock And Power Back Door ECU Connector Terminal Identification

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the O15 ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   T4-6 (POS) - O15-24 (POS)	Always	Below 1 Ω
   T4-4 (GND) - Body ground	Always	Below 1 Ω
   T4-6 (POS) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   4