Conditions for Running the DTC

WARNING: This page is about a different car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

Ignition voltage is 7 V and no more than 16 V.
The accessory DC power control module runs a portion of the diagnostics for this DTC at Accessory/Ignition On.
The accessory DC power control module runs additional diagnostics when the 42 volt output is commanded on.