B173d Peugeot Work ((better)) | Best |

A story involving code in a Peugeot usually starts with a minor annoyance and ends with a deep dive into the car's "brain," the Built-in Systems Interface (BSI) . This specific fault code refers to an invalid identifier

Use your diagnostic tool to access the . b173d peugeot work

Intermittent or low power supplied to the BSI, often stemming from the Battery Protection Unit (BPGA). A story involving code in a Peugeot usually

Start by checking the fuse related to the brake lights and body electronics. A simple 5-amp or 10-amp fuse replacement can sometimes clear the code immediately. 2. Testing the Switch Start by checking the fuse related to the

Diagnosing the B173D fault code requires a systematic approach:

. Because the immobilizer doesn't get the correct "handshake" signal, it prevents the engine from cranking or firing to protect against theft. Common Symptoms Non-starting engine: The car may not even attempt to crank. "Key Not Detected" messages: