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  1. tom2378

    voltage ramp rate at output of ignition switch

    Hi All, the voltage at the input of the ignition switch, terminal 30 is 12V , I turn the key and the voltage at the ignition swith output climbs to 12V in 10mS. Half a second later both voltages drop as the engine is starting. Question : why does it take 10mS for the voltage at the ignition...

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