Diagnostic Tests: Notes

CAUTION: Perform all resistance and voltage tests with a Digital Volt-Ohmmeter (DVOM) with minimum 10-megohm impedance, unless stated otherwise in test procedures. Ensure ignition switch is in OFF position when performing resistance tests.

CAUTION: All ECM connector measurements must be made at the back of the ECM connector. Probing the connector face cavities will result in damage to the connector terminals, resulting in poor terminal contact.

NOTE: For identification of circuits, terminals and wire colors referenced in the following testing, see WIRING DIAGRAMS .