IGNC4 - Check For Spout Open In Harness

^ Key OFF.

^ Disconnect PCM.

^ Disconnect diagnostic cable TFI module tee from Ignition Control Module only; leave TFI module tee connected to vehicle harness.

^ DVOM on ohm scale.

^ Measure resistance between Pin 36 (SPOUT) of the PCM vehicle harness connector and Pin 10 (SPOUT) at the breakout box.

^ Is resistance less than 5.0 ohms?

YES -- Replace PCM. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.

NO -- Service SPOUT open in harness between PCM and Ignition Control Module. Remove all test equipment. Reconnect all components. Clear continuous memory. Rerun quick test.