Conditions For Setting DTC P0730

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

DTC sets when one of the following conditions occurs for 7 seconds:

Gear ratio is more than 2.97:1.
Gear ratio is 2.43:1 to 2.87:1.
Gear ratio is 1.62:1 to 2.33:1.
Gear ratio is 1.05:1 to 1.52:1.
Gear ratio is .75:1 to .95:1.
The gear ratio is less than .65:1.