B173d - Peugeot Work

This guide provides an exhaustive, step-by-step approach to diagnosing and fixing the root causes of the B173D fault code in Peugeot models.

Measure the voltage of your main car battery (it should be over 12.5V). If it is below 12V, charge or replace it. 4. Perform a BSI Reset (PEUGEOT "Wake-Up" Procedure) Sometimes the BSI module needs to be forced into a reset. b173d peugeot work

Once the cause of the B173D fault code is identified, the necessary repairs can be undertaken: This guide provides an exhaustive, step-by-step approach to

If the code persists after a reset and the battery is healthy, the internal motor or the sensor inside the steering lock module may have failed. Because this is a security-linked part, replacements often require specialized coding to sync with your car's immobilizer system. Is it Safe to Drive? Because this is a security-linked part, replacements often

If the error persists, the BSI unit itself may require a software update or replacement, which should be handled by a specialized mechanic.

The car may intermittently fail to detect the key when inside the reader. Electrical circuit fault: have your vehicle repaired

French vehicles are notoriously sensitive to erratic input voltages. Use a digital multimeter to test the car's engine-bay battery. Should read at least 12.6 Volts .