D18 - Check C4 At Coil Pack - KOEC - Coils Disconnected

^ Key off.

^ Connect incandescent test lamp between J57 (B+) and J28 (LC4C).

^ Crank engine.

^ Does test lamp blink during crank?


YES -- Replace left coil pack. Input to coil pack is OK, but no high voltage output. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.


NO -- Replace ICM. No C4 output. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.