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.

ECM Power & Ground Circuits

Proper power and ground supply to ECM is required to guarantee correct operation of ECM and self-diagnostic system. See ELECTRONIC CONTROL MODULE (ECM) under COMPUTERIZED ENGINE CONTROLS in SYSTEM & COMPONENT TESTING article.