Code Definition

B1554 — Decklid Release Circuit Short To Ground

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1554

B1554 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1554 is stored, the module has detected a short-circuit (voltage pulled to ground or to supply) 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.

B1554 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Body Control Module (BCM) monitors the electrical circuit that controls the decklid (trunk lid) release solenoid or actuator. DTC B1554 is set when the BCM detects that the decklid release output is shorted to ground when no command has been issued, or when the current draw on activation exceeds the protected limit because the load side of the circuit is grounded. This typically indicates chafed wiring contacting body sheet metal, an internally shorted solenoid winding to its case, or a damaged connector. When this code is active, the trunk may fail to release, the BCM may disable the outp...

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