B2250

DOOR / HATCH: BACK DOOR CLOSER SYSTEM: B2250: Back Door Closer Operation Malfunction

DTC B2250 - Back Door Closer Operation Malfunction

DESCRIPTION

The power back door ECU (power back door motor unit)*1 or back door closer ECU (multiplex network door ECU)*2 receives signals from the latch switch, sector switch and back door courtesy switch, which are built into the back door lock. Based on these switch signals, the latch position of the back door lock is determined.





- *1: w/ Power Back Door System
- *2: w/o Power Back Door System

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT BACK DOOR LOCK ASSEMBLY (SECTOR SWITCH)
(a) Remove the back door lock assembly Smart Key System (for Start Function).
(b) Measure the resistance according to the value(s) in the table below.





Standard Resistance:

Sector Switch





Text in Illustration





NG -- REPLACE BACK DOOR LOCK ASSEMBLY
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - POWER BACK DOOR ECU OR BACK DOOR CLOSER ECU)




(a) w/ Power Back Door System
(1) Disconnect the R1 back door lock assembly connector and L20 power back door ECU connector.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





Text in Illustration








(b) w/o Power Back Door System
(1) Disconnect the R1 back door lock assembly connector and L21 back door closer ECU connector.
(2) Measure the resistance according to the value(s) in the table below.
Standard Resistance:





Text in Illustration





Result:





C -- REPLACE BACK DOOR CLOSER ECU (MULTIPLEX NETWORK DOOR ECU)
B -- REPLACE POWER BACK DOOR ECU (POWER BACK DOOR MOTOR UNIT)
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR