Engine Control Module: Testing and Inspection
ECM Connector Identification:
ECM CONNECTOR PIN-VOLTAGE CHECK
1. Check voltage at the connector terminals as listed, under the stated conditions with the ECM connected. Measure voltage with a DVOM through a "break-out box" or use a straight pin inserted from the back of the connector into the appropriate terminal.
CAUTION: Do not short between terminals! Damage to the ECM may result.