# Calling subaru people... Fuel Pump voltage troubleshooting help.

**URL:** <https://forums.speedlife.net/t/calling-subaru-people-fuel-pump-voltage-troubleshooting-help/249872>\
**Category:** Shift518 Automotive\
**Created:** [January 21, 2010, 4:55pm UTC](https://forums.speedlife.net/t/calling-subaru-people-fuel-pump-voltage-troubleshooting-help/249872 "2010-01-21T16:55:30Z")\
**Posts on this page:** 1\
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**Author:** ![KrazyKid](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/krazykid/32/6371_2.png) [@KrazyKid](https://forums.speedlife.net/u/KrazyKid)\
**Post date:** [January 25, 2010, 4:09pm UTC](https://forums.speedlife.net/t/calling-subaru-people-fuel-pump-voltage-troubleshooting-help/249872/16 "2010-01-25T16:09:12Z")

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> [@OFFICIAL Buffalo Sabres Thread](https://forums.speedlife.net/t/official-buffalo-sabres-thread/25170/5050):
>
> ASD relay connector
> 
> Pin#1 Black wire, direct to chassis ground  
> Pin#2 Light Green, Pin 63 on main PCM connector  
> Pin#3 Yellow/Blue stripe, pin 1+2 on main PCM connector, MAS, and fuel injectors  
> Pin#4 Yellow/Red stripe, Power feed for o2 sensors, data connector, emissions control solenoids  
> Pin#5 Red, power feed from distribution block main 30a fuse  
> Pin#6 Red, power feed from distribution block main 30a fuse
> 
> Pin # 2 is the one to check…that should have power with the key-on position. That is the power for the relay field, which closes the circuit and sends power to everything else…
> 
> Pins 5 and 6 should have battery voltage. Those, plus pin #2 on the FP relay, all feed of the same distribution connection in the main fuse box.
> 
> I have to see if I have a pinout chart for the AWD PCM…
> 
> BTW is your car auto or manual(gearbox)?

Well this is what I got:  
With the relay not connected to the plug  
#1 is ground  
#2 12V  
#3 .68V  
#4 nothing  
#5 nothing  
#6 nothing

Relay plugged in to plug  
#1 ground  
#2 10.9V  
#3 quick .0# flicker and nothing  
#4 nothing  
#5 Nothing  
#6 Nothing

The relay clicks on and off with ignition

So yeah… where is the main 30A fuse??? I looked at all the ones under the hood and in the underdash block and dont see anything poped.

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