PCM 42 ecu pinout grounding question(00 silverado)
03-17-2014, 08:01 PM
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PCM 42 ecu pinout grounding question(00 silverado) I got my pin in the ecu, i started the truck and i was testing to make sure the ecu sent out the ground signal. Well it grounded out at like 180/181, But when it was grounding out, it wasnt a steady ground, it was like it was beeping......(beep......beep....beep) it was never a steady ground. Wouldnt that in turn keep kicking on and off that relay and possibly burn it up ?
