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International Automotive Technicians Network
Re: 1993 GM IAC Testing
Posted to Technical Discussion Forum on 2/15/2004

Hi Carl,

Actually this is the one I am using.

[...] 4&category=databaseDescript&maxhits=5&keywords=OTC3320 [[...]]

It is used in conjuction with the LED noid lights to test the driver circuits in the PCM.

[...] 29934 [[...]]

Andy Login to read more.