Code Definition

P106F — Passengers Air Bag Deactivation Not Defined

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

About P106F

P106F is a manufacturer-specific powertrain diagnostic trouble code recorded for Peugeot vehicles. It belongs to the P-prefix family of codes, which covers engine, transmission, emissions, or fuel-system faults.

Scanning & clearing: A generic OBD-II scan tool will usually read and clear powertrain (P) codes. For live data, freeze-frame capture, and bi-directional tests you may need a more capable scan tool that supports the vehicle's ECM protocol.

P106F 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

On these Peugeot vehicles the Airbag Control Unit (ACU) must know whether the passenger airbag is switched on or off, determined either by the manual passenger airbag deactivation switch or by the occupant sensing system. Shortly after ignition on the ACU checks this deactivation input for a valid on or off state. DTC P106F sets when the ACU cannot detect any defined deactivation status within the timeout period, meaning the signal is undefined or floating rather than a clear on or off. The cause is usually the deactivation switch, the occupant detection mat or sensor, or the wiring between th...

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