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-   -   Low Voltage Fuel Pump Relay Turn on pin (http://www.peachparts.com/shopforum/tech-help/294123-low-voltage-fuel-pump-relay-turn-pin.html)

JamesDean 02-14-2011 09:59 AM
Low Voltage Fuel Pump Relay Turn on pin
 
560sel

For some reason, randomly, my buddy's 560SEL will only output 4v to turn on the fuel pump relay (which is fails to actually turn on). We cant figure out why this is happening.

Anyone have any ideas?

mbdoc 02-14-2011 10:04 AM
Which pin?? circuit 15 or 30?

JamesDean 02-14-2011 10:11 AM
9) Pink/Black - Ignition Switch - Pin 15

JamesDean 02-14-2011 10:30 AM
According to the FSM, that is powered direct from the ignition switch (which is connected direct to battery) and also provides power to the following
1) Ignition Coil
2) EZL
3) OVP
4) All Warning Indicators
5) Fuel Pump Relay
6) Fuse 7

JamesDean 02-14-2011 10:34 AM
Could something on Fuse 7 be causing a problem? Hmr Perhaps not, if something was grounding out it should certainly blow that fuse...

mbdoc 02-14-2011 11:34 AM
Just run a new wire directly from the back of the fuse box to the terminal of the fuel pump relay.

daddi 02-14-2011 12:40 PM
Quote:
Originally Posted by mbdoc (Post 2661649)
Just run a new wire directly from the back of the fuse box to the terminal of the fuel pump relay.
Or replacing fuse 7.

mbdoc 02-14-2011 12:46 PM
That is NOT a fused circuit, just a junction point for switched power.

JamesDean 02-14-2011 12:55 PM
yes, just a junction. its most likely a loose wire. We'll probably just end up running a nice fresh line to the fuse box.


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