Circuit/System Verification

WARNING: This page is about a different car, the 2007 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Ignition ON, with scan tool compare the Prev. State of Charge and Start Up State of Charge parameters. The readings should not differ my more than 30%.

If the readings differ by more than 30%, go to Battery Electrical Drain/Parasitic Load Test .