Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Any of the following conditions exist for 10 seconds:
B0085 01, B0088 01
The impact sensor has been shorted to voltage.
B0085 02, B0088 02
- The sensor has been shorted to ground.
- The sensor current is greater than 23 mA for greater than 5 ms.
B0085 04, B0088 04
- The impact sensor has an open or high resistance.
- The Inflatable Restraint Sensing and Diagnostic Module has not received a message from the sensor for greater than 375 ms.
B0085 39, B0088 39
- The Inflatable Restraint Sensing and Diagnostic Module has received a Not OK message from the sensor.
- The Inflatable Restraint Sensing and Diagnostic Module has not received a message.
B0085 3A, B0088 3A
- The Inflatable Restraint Sensing and Diagnostic Module has received identification message from the sensor, which does not match the identification stored in the Inflatable Restraint Sensing and Diagnostic Module memory.
- The Inflatable Restraint Sensing and Diagnostic Module has reset the impact sensor twice without detecting the correct identification message.
B0085 71, B0088 71
The inflatable restraint sensing and diagnostic module has received invalid serial data from the sensor.