Operation CHARM: Car repair manuals for everyone.
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ICM3 - Check ICM Wire For Open



- Key OFF.

- Install Breakout Box (leave PCM disconnected).

- Disconnect the 6-pin distributor connector.

- Measure the resistance between BOB Test Pin ICM and the ICM terminal at the 6-pin distributor connector.

- Is the resistance less than 5 ohms?

Yes -- Go to ICM4. ICM4 - Check ICM Wire For Short

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