92 Ford F53 crank no start

[1992 Bounder]

Engine cranks no start.
OBD1 engine code 556
Is there a test I can do to troubleshoot if it’s the fuel pump relay or a bigger problem?

[subford]

Ground pin#6 of the self-test plug and turn the key to the run position. The fuel pump relay should click (make) and the fuel pump should run.
Also make sure the Inertia switch is not tripped as you test the circuit with a loading test light (non led).
















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[1992 Bounder]

Thanks Bill, I will do that first thing in the morning. Do I ground pin 6 to negative of battery or another pin?

[GypsyR]

Whichever ground is most convenient for you. The frame or a chassis bolt for example, but sometimes paint/dirt/rust can make such a connection unreliable for testing so a wire direct to a negative battery terminal is best.
May I take it you're a bit new to motor vehicle type troubleshooting?

[1992 Bounder]

I have changed a few parts over the years but electrical is not my strong suit, lol

[GypsyR]

Not exactly my forte either to tell the truth.

[1992 Bounder]

Thanks everyone, the old Bounder has life. The fuel pump was bad. I would not have been able to troubleshoot this without your help.