If we were to troubleshoot this relay for correct operation, would we follow this?:
12 volts at the fuel pump relay fuse. If present, then check for 12 volts at blade 30 of the fuel pump relay (relay "feed"). Blade 85 would be this relays ground, and blade 86 at the relay would have 12 volts when the ignition key is in the on/run position (used as the "trigger" for this fuel pump relay to operate). Blade 87 (when relay is "on") would be the 12 volt output to the inertia switch, which then suppies the 12 volts to the fuel pump.
Would this be correct?
I guess I would first turn the key to "on", and check blade 87 for voltage. If I see 12 volts at this point with the key in on/run, the relay is working, and providing voltage to the fuel pump. If not, then I'd check the other blade points of the relay. If we have ground at blade 85, 12 volts at 86 with the ignition key in the on/run position, and 12 volts at blade 30 (from the fuel pump fuse), then the relay is bad.
Last edited by bucko; 07-25-2014 at 05:01 AM.