Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
B0091 00
- The front impact sensor has been shorted to voltage, open, or shorted to ground.
- The front impact sensor current has been above 23 mA for longer than 5 milliseconds.
- The SDM has not received a message from the front impact sensor for more than 375 milliseconds.
B0091 01
- The front impact sensor has been shorted to voltage.
- The front impact sensor current has been above 23 mA for longer than 5 milliseconds.
- The SDM has not received a message from the front impact sensor for more than 375 milliseconds.
B0091 02
- The front impact sensor has been shorted to ground.
- The front impact sensor current has been above 23 mA for longer than 5 milliseconds.
- The SDM has not received a message from the front impact sensor for more than 375 milliseconds.
B0091 05
- The front impact sensor has been shorted to voltage.
- The front impact sensor circuit is open.
- The front impact sensor current has been above 23 mA for longer than 5 milliseconds.
- The SDM has not received a message from the front impact sensor for more than 375 milliseconds.
B0091 0F
The SDM has received erratic messages from the front impact sensor.
B0091 39
- The SDM has received a NOK message from the front impact sensor.
- The SDM has not received a message.
B0091 3A
- The SDM has received an ID message from the front impact sensor, which does not match the ID stored in the SDM memory.
- The SDM has reset the front impact sensor twice without detecting the correct ID message.
B0091 71
The SDM has received invalid serial data from the front impact sensor.