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.

All of the following conditions must exist for 5 seconds:

B0081 3A

The SDM has received an ID message from the PPS which does not match the ID stored in the SDM memory.
The SDM has reset the PPS twice without detecting the correct ID message.

B0081 39

The SDM has received a NOK message from the PPS.
The SDM has not received a message.

B0081 71

The SDM has received invalid serial data from the PPS.