B1370 06

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Ignition 1 voltage circuit is open for more than 2 seconds.
Ignition 1 voltage, accessory voltage, or off/run/crank voltage circuit shorted to ground
Battery positive voltage circuit of the ignition switch open or shorted to ground
Run crank relay coil control circuit open, including relay coil and ground