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Randall C
Randall C, ASE Certified Technician
Category: Toyota
Satisfied Customers: 12744
Experience:  ASE Master Technician, 32 years, diagnostic/repair / electrical specialist
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I have a 2004 Toyota Sequoia. And I am experienced

Customer Question

I have a 2004 Toyota Sequoia. And I am experienced experiencing no running lights. Fuses are good, relay replaced, bulbs all good, now what?
Submitted: 1 year ago.
Category: Toyota
Expert:  Randall C replied 1 year ago.

Hello, I am Randall Do you have a testlight or voltmeter to test a couple things?

Customer: replied 1 year ago.
I have both.
Expert:  Randall C replied 1 year ago.

Ok, i need you to remove the tail light relay, turn key On, probe the relay terminals, how many have power? 12 volts?

Customer: replied 1 year ago.
2 terminals have 12V
Expert:  Randall C replied 1 year ago.

Ok, remove the tailight fuse, turn lights ON, probe both the termiansl the fuse plugs into, either have power?

Customer: replied 1 year ago.
Which fuse is the running lights
Expert:  Randall C replied 1 year ago.

ok, sorry, you said you checked fuses, let me see if I have a diagram to send

Customer: replied 1 year ago.
Right, i checked all fuses
Expert:  Randall C replied 1 year ago.

Ok, understood, the tail fuse is in the INSIDE fuse box, It is a 15 amp fuse located top left corner, See the link I included, Swap it out even if it looksok, If still no lights? then I lean very strongly to the combination/headlight switch as being bad even though headlights still work, The switch contains different circuits for different things, I can send the wiring diagram also if you feel it will help, It is likely going to be the combo switch or the fuse is bad

Customer: replied 1 year ago.
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Expert:  Randall C replied 1 year ago.

did you swap the fuse? did you do the power test?

Customer: replied 1 year ago.
My fuse box is not like your diagram. Ihave 3 different fuse/ relay boxes.
I need to identify which is the running ligh fuse...
Expert:  Randall C replied 1 year ago.

that is odd,. where are yours located, this is a 2004? is it 4x4?

Customer: replied 1 year ago.
2004 , 4x4 sequoia
I can send you pic with my phone if needed
Expert:  Randall C replied 1 year ago.

that may help, I have pulled the factory diahrams for a 2004, and this is the layout it shows

Customer: replied 1 year ago.
Pics of boxes
Expert:  Randall C replied 1 year ago.

I wrote the INSIDE fuse box, none of the pics are that fuse box, The one inside the vehicle, lower left, under dash, drivers side, did you go that box?

Customer: replied 1 year ago.
Ok, found it...fuse poped. Replaced .. poped again...
I had no idea of a fourth box...
Expert:  Randall C replied 1 year ago.

then a short can be difficult from my end, I would start by removing the bulbs one at a time or all at same time indicating a shorted bulb socket, With so many lights in the cirucit, any one could be bad, No way for me to say exact where the problem lies but most common? a bad bulb socket

Customer: replied 1 year ago.
Amen...thank you for your patience.
I think I'll be able to trace it down from here.
Expert:  Randall C replied 1 year ago.

sorry I had to step out, this is the only way to start the repair., even in the shop we have to do this, hope all goes ok

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