Electronic Control Module (ECM)
ECM is located under left side of dash. ECM power is sent from the EFI main relay to ECM terminals A12 and A13. ECM back-up power is received from fuse box 15-amp fuse No. 3 at ECM terminal A1.
NOTE:
Components are grouped into 2 categories. The first category is INPUT DEVICES, which are components that control or produce voltage signals monitored by the control unit. The second category is OUTPUT SIGNALS, which are components controlled by ECM.