Quote:
Originally Posted by Mike D
Well, YOU'RE not filling me with confidence. 
Dunno whether the start relay is supposed to go high, low or ground on the activation leg as I can't find squat regarding voltages in the fricking shop manual. |
The ASD relay is controlled on the switch side by the PCM, it supplies ground on or off. The load side of the relay powers up the injectors, coils and fuel pump.
If in any case the PCM doesnt see a crank sensor input or timing sync input (cam sensor) or extreme long crank to start, the PCM switches off the ASD relay and cuts power.