DTC U1300: Class 2 Short To Ground: Description

When PZM is energized, it monitors class 2 serial data line for a short to ground. DTC U1300 will set when PZM determines class 2 serial data line is shorted to ground for 10 seconds or more. PZM will then use default values. DTC U1300 will clear when PZM determines class 2 serial data line is no longer shorted to ground.