Fuel pump wiring diagram

Doesn't have a fuel reset button . What problem are you having ? No start , starter spins the engine over but doesn't start an run ? Ford has inertia fuel shut off switch , not dodge . Hooking up a fuel pressure gauge an testing for fuel pressure ,not guessing , is the way to verify . Looking at a wiring diagram an using a DVOM - digital volt ohmmeter to test the fuel pump electrical circuit is another way . Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. Under system click on engine ,then under subsystem click on fuel controls . Click the search button then the blue link. Scroll down to the #3 diagram . fuel pump electrical circuit . Looking at the diagram i see the fuel pump relay , the fuel pump relay is energized by the PCM powertrain control module - engine computer . If the PCM doesn't see a crankshaft position sensor input it won't energize the fuel pump relay . Does the vehicle have spark ? Do you know how to test for spark ? Video's on youtube . The fuel pump relay could be bad .

Fuel Pump Electrical Circuits Description and Operation

Without testing ,hard to say !Do you know what a wiring diagram is ? How to use a DVOM - digital volt ohm meter to test automotive electrical circuits . Does the vehicle have spark ? When turning the key to run ,not start , do your hear the fuel pump run for two seconds to prime the fuel system , fuel rail etc.... Did you hook up a fuel pressure gauge ? Free wiring diagrams here http://www.bbbind.com/free-tsb Enter vehicle info. year , make , model an engine size. Under system click on engine ,then under subsystem click on fuel controls . Click the search button then the blue link's one at a time till you find fuel pump circuit .
Fuel Pump Electrical Circuits Description and Operation

Learn to test ,not guess .

Doesn't have one ! What problem are you having ? Engine Cranks but doesn't start an run ? Did you hook up a fuel pressure gauge or are you assuming it is a fuel delivery problem ? Do you know how to view wiring diagrams an use a DVOM - digital volt ohm meter to test electrical circuit for the fuel pump ? Do you know what a relay is an how they work ? Looking at a wiring diagram for your year , make an model vehicle i see a relay that is controlled by the ECM -engine computer .Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size ! under system click on engine , then under subsystem click on fuel pump . Click the search button then the blue link . Watch this video
Fuel Pump Electrical Circuits Description and Operation

You need a wiring diagram of the fuel circuit, here is a link to a possible source of the diagrams. http://bbbind.com/free_tsb.html


One note you understand the pump only runs when the engine is being cranked?

Go to http://bbbind.com/free_tsb.html free wiring diagrams ! Enter vehicle info. Then click on engine under systems , then fuel controls under subsystem . There you will find fuel pump electrical circuit diagram ! Here is a testing GM fuel system video ! GM Fuel Pump Relay Testing

Instead of rigging it why don't you lean how to fix it right . There are plenty of trouble shooting videos on you tube for GM fuel pump circuits . Watch scanner danners video GM fuel pump circuit testing , Also check out a basic electrical trouble shooting video . Go to www.bbbind.com/ for a free wiring diagram of your fuel pump circuit .

Did you check fuel pump electrical circuit ? Look at a wiring diagram to see what all is involved in making the fuel pump work. No , the knock sensor can't cause this ! Do you know how to do automotive electrical circuit testing using a DVOM - digital volt ohm meter ? How to read an use a wiring diagram to pin point areas for testing in a electrical circuit ! What do you think makes that fuel pump work ? AIR !!!! Looking at a wiring diagram I see a fuel pump relay that gets B+ voltage from the engine control relay. The engine computer energizes both, relays .There is a fuel pump resistor inline before the fuel pump.
Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size. Under system click on engine then under subsystem click fuel controls ! Click the search button then the second blue link . The second diagram down shows the fuel pump electrical circuit .
Watch this videos from youtube .
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http://www.bbbind.com/free_tsb.html free wiring diagrams ! Enter vehicle info. year , make , model an engine size . Under system click on engine ,then under subsystem click on fuel controls . Then click the search button , then click blue link .The 7th diagram down shows two fuel pump relays , This I have not seen before ! One is speed cont. relay an the other is just fuel pump relay ? The speed control one has a resistor in the electrical circuit . That is way your droping voltage .
Fuel Pump Electrical Circuit Diagnosis (VIN K)
Fuel Pump Electrical Circuit Diagnosis (VIN 1)

The PCM alters fuel pump speed by energizing the fuel pump speed control relay. Under normal conditions, the fuel pump speed control relay is energized. The applied voltage to the fuel pump is controlled by a resistor assembly. When higher fuel volume is required due to increased engine load, MAP sensor value over 90 kPa the PCM de-energizes the fuel pump speed control relay circuit. The increased voltage to the in-tank fuel pump allows a higher volume of fuel to be delivered to the fuel rail. The PCM also compensates for low system voltage by energizing the fuel pump speed control relay.

Have it check for codes !
Did DTC P0230 or DTC 1260 set?
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Go to DTC P0230 Fuel Pump Relay Control Circuit or DTC P1260 Fuel Pump Speed Relay Control Circuit
Go to Step 3

See page one at the pdf link below.
http://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=18451

HI...
The common cause of the problem that you related.
Is the FUEL PUMP RELAY " Called MAIN RELAY.
Is located : left side under the dash.
Is a BIG relay gray colour. with a connector of 7 or 8 wires.
I recomend replace the relay.

And letme know if you solve your problem.

I hope this information work on your problem.
Thank you for use fixya.