Conditions for Setting 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.
- An external condition has caused an accessory DC power control module 42 volt malfunction,
OR
- The accessory DC power control module has detected an internal malfunction.