The CAN Bus Health Check: What Your Multimeter is Really Telling You (And What 60Ω, 120Ω, and 0Ω Actually Mean)

Your multimeter gives you a number. This table translates it into your first actionable clue—before you even open a wiring diagram. Reading (Powered Off) Likely Diagnosis Next Action 0Ω – 5Ω Hard Short Physical hunt for pinched wires or water ingress. Use the Split-Half Method to isolate. ~40Ω Over-Termination Find and remove the extra 120Ω load (e.g., […]