← Back to list

How to Fix B0091-00 SRS Fault Code on 2009 Silverado 3500HD - Step-by-Step Diagnosis

Model: 2009 Silverado Fault Code: B0091 Posted: 2018-10-15 17:29

What should I check to repair the B0091-00 SRS fault code on my 2009 Chevrolet Silverado 3500HD? The B0091-00 code indicates an issue with the front impact sensor, specifically that the center front impact sensor current exceeds 23 mA for more than 5 milliseconds. This could be due to the sensor being open-circuited, shorted to ground, or shorted to voltage. Common causes include faulty wiring, damaged connectors, or a defective sensor itself. For accurate diagnosis and repair, it's recommended to inspect the sensor circuit, verify electrical connections, and test for proper signal output using an OBD2 scanner or multimeter.

Related fault codes
B0091
Comments (2)
Anonymous 2018-10-15 17:34

I have already replaced the front impact sensor with a Dorman part, but the B0091-00 code persists. The issue may lie in wiring or connector connections rather than the sensor itself.

Anonymous 2018-10-17 10:07

This is not typically a DIYer-level fix. B0091-00 indicates that the center front impact sensor has either an open circuit, a short to ground, or a short to voltage. The fault occurs when the current exceeds 23 mA for more than 5 milliseconds during operation.