B173d Peugeot Work [portable] Access

In the context of Peugeot and Citroën vehicles, is a diagnostic fault code indicating a

2. Corroded or Loose Connections at the BPGA Unit

The BPGA unit (also called the Fuse Box Under Bonnet) is a common failure point. Water ingress from a clogged windscreen drain or poor sealing corrodes the relay sockets, causing high resistance and false B173D triggers. b173d peugeot work

Repairing the B173D Peugeot Work Code

Measure power & ground