The 120Ω Reading on Pins 6 & 14: The CAN Bus Termination Fault Most Techs Misdiagnose
You know the drill. Communication drops. The dash lights up with a symphony of U-codes, then goes quiet. You grab your multimeter and probe the OBD-II port—Pin 6 to Pin 14. It reads 120Ω. “That seems fine,” you think. It’s a 120-ohm bus, right? Then it clicks: that’s the value of one resistor, not the network. Your CAN bus is running […]