A DMM set to read DC volts is connected across terminals 6 and 14 of the DLC. The meter reads zero volts at all times, key on or key off. This indicates ________.
A) a low temperature condition
B) a CAN BUS shorted to ground
C) bad UART output
D) headlights are OFF

Question

Quizplus · Accepted Answer

A reading of zero volts on a DMM set to read DC volts across terminals 6 and 14 of the DLC indicates that the CAN BUS is shorted to ground. This is because these terminals are part of the CAN network and a short to ground can result in a loss of communication and a zero voltage reading.

A DMM Set to Read DC Volts Is Connected Across