ICM4 - Check ICM Wire For Short

- Key OFF.

- Install Breakout Box (leave PCM disconnected).

- Disconnect the 6-pin distributor connector.

- Measure the resistance between BOB Test Pin ICM and ground.

- Measure the resistance between Test Pin ICM and Test Pin PWR.

- Are the resistances greater than 10,000 ohms?

Yes -- Go to ICM5. ICM5 - Ground at Distributor

No -- Service the ICM wire for short(s).