Diagnostic Aids

WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Possible causes of this DTC are the following conditions:

A loss of battery ground
A disconnected battery
A running reset
A running reset is detected when the keep alive memory check sum is not updated properly.
A sudden drop in the system voltage to less than 5 volts
Long extended engine cranks that cause the battery voltage to drop
Poor power or ground connections
An internal EBCM malfunction