B0077 front impact sensor code

03denali02814 · April 30, 2016

Hello i have a 03 denali with 6.0L of coarse. I had my service airbag light come on and have a snap-on modis scanner. Found the b0077 code for the drivers side front impact sensor. Tried doing some research but there isn't a whole lot out there on this code. Found most people solved the problem with either a new sensor or had corrosion on the connection to the sensor.

So far ive replaced the sensor with a new

one due to the body of the sensor having heavy corrosion on it but the connector itself is in perfect condition and clean as can be. No change in the problem after changing the sensor, after that took a suggestion and checked all fuses which were all fine.

At this point im stumped and could really use the troubleshooting tree for this code. I worked for gm for over 5 years as a tech so i am very familiar with gm vehicles, and have professionally worked on cars for over 15 years. Any help or suggestions would be greatly appreciated as this is the only light on in the truck which has 325,000 miles on it and id like to take care of this problem before something else comes up

tbarn · May 7, 2016

Try this

b0077.pdf

03denali02814 · May 17, 2016

Thank you very much tbarn. That is exactly what i was looking for. If you have the wiring diagrams for the circuit that would be very helpful also. If not this was a very big help alone. Thank you again, Mike