October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

Possible Causes

ECM power supply
Loose connections or contact resistance in CAN terminals
Open circuit in one or both CAN signal cables
Short to ground, voltage or each other in one or both CAN signal cables
Interference in CAN signal wiring
Defective node in CAN