Circuit Opening Relay Location???

That is correct. I'm not sure if Tacomas are the same way but the circuit opening relay on pre-Tacomas waits for oil pressure sensor input before powering the fuel pump

 

This is great! I found the George Schenfeld thread for this issue (a 95 Tacoma) while standing in line at Auto Zone getting ready to buy a fuel pump. I see that its origin is from waaaay back. That means that this problem could happen at any time which takes some of the magic away from driving the world's most reliable vehicle. Anyway, it helped me a lot in convincing me to keep looking for the Circuit Open Relay which was, actually, easily found by removing the panel just below the steering column. A quick test with 12VDC, as per my awesome Haynes manual, tells me this thing, along with the main EFI relay, works just fine. I also put 12V onto the leads of my old fuel pump (yes, I changed it anyway. I mean, it IS 30 years old and I already dropped the tank) and it jumped like a fish so I have to think that it's good which is now pointing me toward the ECM, per the discussion. So, the Haynes has a good electrical diagram & schematic so I'm going to follow connections from the ECM to the fuel pump. If it turns the direction of the ECU, I could use some advice in making sure I obtain one that is correctly matched to my vehicle so as I heard that this is a fine but critical line.
Painfully experienced, please advise.

Also, if this looks to anyone like I'm heading in the wrong direction, let me know (with details).

Thanks

 

following.

 

Old thread, I know, but it's still a mystery where the Open Circuit Relay is on my truck - 2001 Tacoma (4cyl). Removed all the panels and can't find it. Some say it's green, other say it's under the fuse bank. Any ideas? (Problem is the same as others' - fuel not getting to fuel rail after hard braking).

 

So i literally just replaced mine this week after a crank/no start situation. It was right here in this area where you appear to have some random fuse holder?! Any idea what that's about? Part of an alarm system?





Here's where it should be. just to the left of the steering column.


EDIT: I have a 99 and noticed you have a 2001 so your location may be different. thanks Toyota.

 

Well, I realize now that the pic i found on the internet actually came from this thread so you've probably already seen that...

@themattman67 you may need to consult the 2001 FSM to find it.

 

Been a while but I think it is this one:

 

Yep - the big green Circuit Open Relay just isn't there. The small black RY302 Relay on the lower right corner of the fuse block may be it, but replacing it did not fix the problem. Still crank/no start. What else could be interrupting power to the fuel pump?

 

Did you have any luck matt?

 

Wish there was more replies on this thread. I’m having the same problem.

 

Alexa. What fixed my problem. Loose wire in the ignition pigtail that clips to the ignition coil