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International Automotive Technicians Network
Re: international 4300 trouble
Posted to HD/Fleet Forum on 2/27/2018 3 Replies

The circuit is two wires. B+ ignition and ground controlled PWM from ecm. Load the 12v power, I’d bet you see it drop to nearly zero. Problem is usually between the 24pin melrose connector and ipr. The solution is to replace the engine wiring harness as it is ... Login to read more.

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