sassapazz

i have a 2001 TL and when i was installing my amp i disconnected the battery. when i reconnected it my car wil not start. the starter cranks but the none of the accessories will turn on. radio, air, door locks, power seat, headlights all do not work. i cannot figure this out. any help would be appreciated! thanks in advance.

3.2TLc

Welcome Sassapazz !!!
There's a good chance that ya blew a fuse or two....check them out.

sassapazz

i checked all the fuses under the hood and by the driver door and passenger door. they all seem to be fine. are there any other fuses that i dont know about?

3.2TLc

Did all the Amp wiring go smoothly without any problems ? Check the grounds and connections to the Amp again....along with the main underhood fuses and relays.

3.2TLc

Start with the underhood fuse/relay box: (#41 and #42, 60A)
then driver's underdash fuse panel: (#13, 7.5A)
and other then the above, maybe the PGM-FI main relay or PCM ?

If all of these are good, doublecheck the battery and starter circuits, as something may have caused a short.....fusible link ?

sassapazz

yes the wiring went okay with no problems. everything was working fine up until i disconnected the battery. how do i tell if a relay is bad?

Skirmich

I bet he blew the ACC fuse its like a 10AMP? 15A? and basically kills all the interior lights stereo and other stuff.

sassapazz

the acc fuse is fine. i checked it twice. now where do i find the fusible link?

3.2TLc

Your best bet would be to download a copy of the Factory Service Manual for more detailed electrical circuit diagrams and troubleshooting info.

01tl4tl

there is a main ground wire under the spare tire,,were you anywhere near there?
tap into a ground or made a fresh one for amp?

relays of same color can be swapped for testing
fuses can `look` good,,only a test light or multi meter- if no power from source- can tell for sure
harbor freight tools gives aways multi meter with coupon,,everyone should have one

TLer trash

Are you checking the fuses with a test light or voltmeter, as opposed to just eyeballing them? Check fuse #41 underhood, the 120 amp one.

sassapazz

Well I had it towed to a mechanic, I was tired of not getting anywhere. Hopefully they can figure it out.

3.2TLc

Ya gave up too easily !!!
Your "DIY" installation of the Amp will prove to be rather costly. Probably end up being something relatively simple......such as a blown fuse.

TLer trash

Yeah, we weren't done guessing.

sassapazz

Well I guess the computer modules were scrambled. They reset the computer and it fired right up! I don't think I could've done that on my own, or could I? Anyways thanks for all your helpful advice!

3.2TLc

Hopefully they didn't charge ya too much. No blown fuses ?

But, to answer your question.....you could've "Reset" the computer (ECU) had you known that was where the problem actually was.
Sometimes, the actual diagnosis is the difficult part in itself.