Conditions for Running the DTC

WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

P0658

The engine speed is greater than 500 RPM for 5 seconds.
Ignition voltage is 8.6 volts or greater.
High side driver 1 is enabled.
DTC P0658 has not set this ignition.

P0659

DTC P0659 has not set this ignition.
Ignition voltage is 8.6 volts or greater.
Ignition switch transitions from OFF to run position.