Code 543 retrieved....Fuel Pump Secondary Circuit Fault. - Ranger-Forums - The Ultimate Ford Ranger Resource

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Code 543 retrieved....Fuel Pump Secondary Circuit Fault.

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Old 11-10-2006
Jeremy102579's Avatar
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Code 543 retrieved....Fuel Pump Secondary Circuit Fault.

i recieved my obd-1 code scanner in the mail today and hooked it up to my 94 ranger.

for the last month, my CEL has been coming on for a minute, then goes off for a minute, then comes on again and repeats every couple minutes.

I got a code of 543.......

Code Reader Manual says.....Fuel Pump Secondary Circuit Fault.
Haynes manual says.......Fuel Pump Circuit Open; Battery to PCM.

Where and how do i start in correcting this known problem?

thanks

jr
 
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Old 11-10-2006
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i really dont have a legitamite answer, but ill venture to guess that by what the haynes manual says, maybe a fuse is blown for the fuel pump or the pcm(powertrain control module?), so first thing i would do is check the fuse box or the haynes manual for fuel pump fixes?

kinda obvious i know but maybe it helps
 
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Old 11-10-2006
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all the fuses look good, thanks.
 
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