DIAGNOSTIC ITEM 26: Short To Power Supply Or Ground, Open Circuit Or Line-To-Line Short In The CAN-B Bus Lines: Function
WARNING: This page is about a different car, the 2012 Mitsubishi Lancer. However, it is still accessible from the selected car via links, so may be relevant.
If a short to power supply or ground, open circuit or line-to-line short is present at either CAN_H or CAN_L side on the CAN-B lines, this diagnosis result will be set.