Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
B0085 00 or B0086 00
- The SIS has been shorted to voltage, open or shorted to ground.
- The SIS current has been above 23 mA for longer than 5 milliseconds.
- The SDM has not received a message from the SIS for more than 375 milliseconds.
B0085 39 or B0086 39
- The SDM has received a NOK message from the SIS.
- The SDM has not received a message.
B0085 0F or B0086 0F
The SDM has received erratic messages from the SIS.
B0085 3A or B0086 3A
- The SDM has received an ID message from the SIS which does not match the ID stored in the SDM memory.
- The SDM has reset the SIS twice without detecting the correct ID message.