Code Definition

B174E (11) — Power Tailgate Lock Closing Fault

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

About B174E

B174E is a manufacturer-specific body diagnostic trouble code recorded for Peugeot vehicles. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

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.

B174E 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 Built in Systems Interface (BSI) or dedicated tailgate control module operates the power tailgate latch through a small DC motor and a cinching mechanism that pulls the tailgate from the secondary catch position to the fully latched position. DTC B174E with subcode 11 indicates the lock control circuit voltage was below the expected threshold when the closing operation was commanded, which the module interprets as a short to ground or a stuck low driver state. The module monitors both the commanded output and the feedback from the latch position microswitches, and stores this code if the m...

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