Code Definition

B2245 — Passenger Rear Door Ajar Circuit Open

System: Body  |  Type: Generic (OBD-II Standard)  |  Make: Generic

About B2245

B2245 is a generic (obd-ii standard) body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B2245 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

Because B2245 is a generic OBD-II code, its base definition is shared across manufacturers. The specific diagnostic steps, reference values, and repair procedures can vary by vehicle, and the TaT Diagnostic Assistant includes verified procedures submitted by working technicians.

Code Information

The Body Control Module (BCM) monitors the passenger rear door ajar switch circuit to determine whether the door is open or closed. DTC B2245 sets when the BCM detects an open circuit condition on the passenger rear door ajar input, meaning the expected pull up voltage cannot be read or pulled low by switch operation. The ajar switch is typically built into the door latch assembly and is connected to the BCM via a dedicated signal wire that runs through the body to door grommet at the hinge area. When this code is set, the BCM may fail to detect when the passenger rear door is open, leading to...

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