Code Definition

B2242 — Rear Cargo Door Unlock Circuit Open

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

About B2242

B2242 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 B2242 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 B2242 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

DTC B2242 is set by the Body Control Module when it detects an open circuit condition on the rear cargo door unlock actuator output circuit. The BCM drives the cargo door lock actuator with a switched output for unlocking, and it monitors the load on this output to confirm the actuator is connected and drawing the expected current when commanded. When the unlock output is commanded but no load is detected (current draw is effectively zero or voltage at the output pin does not pull down as expected under load), the BCM sets this open circuit code. With this code set, the rear cargo door will no...

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