Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The TCM does not illuminate the malfunction indicator lamp (MIL).
The TCM uses default assumption that brake is off.
DTC P0703 will be stored in TCM history.
TCM inhibits torque converter clutch (TCC) engagement.