Connected battery backwards on GS430...
#1
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Connected battery backwards on GS430...
I pulled a major bonehead move trying to do something in a hurry and connected a brand new battery up backwards on my 2006 GS430. My car is virtually dead now. The headlights, hazard lights, horn, and vanity mirror lights all work. I think that is about it. Nothing comes on in the dash, doesn't try to start, basically nothing. I've checked some of the fuses looking at the owners manual. I keep reading about a main fuse but don't know where that is located to check.
Does anyone have any ideas they could possibly help with for me to check?
Thanks in advance.
Does anyone have any ideas they could possibly help with for me to check?
Thanks in advance.
#3
Now that's a real bummer,
To be frank this could literally be really bad or just several blown fuses, relays, and/or links and possibly the alternator. Did you see or smell any smoke? Did you notice the error before or after you tried to start your GS?
This typically reeked havick on older vehicles yet hopefully something as sophisticated as an 06 has several fuses/relays to prevent serious damage etc. I've seen the aftermath of others at the dealership I worked at but luckily I've never done this myself. Very easy with same size post and side-post batteries etc.
Hopefully you didn't tick off every ECM/computer in the car.
Keep us posted.
To be frank this could literally be really bad or just several blown fuses, relays, and/or links and possibly the alternator. Did you see or smell any smoke? Did you notice the error before or after you tried to start your GS?
This typically reeked havick on older vehicles yet hopefully something as sophisticated as an 06 has several fuses/relays to prevent serious damage etc. I've seen the aftermath of others at the dealership I worked at but luckily I've never done this myself. Very easy with same size post and side-post batteries etc.
Hopefully you didn't tick off every ECM/computer in the car.
Keep us posted.
#7
Lexus Champion
ouch. the thing with fuse is it regulate current, not direction of flow. diod does the polarity and most cars don't bother to have that. if you can see where to put in the batt you can see the red wire.
check the fuse but i think dealer is your best solution. they have more tools and more 'know how' people and this reverse is a major one.
when i replace my battery, i tell ya i checked this red wire like 10 times. make sure the neg have a wire hook into the body.
check the fuse but i think dealer is your best solution. they have more tools and more 'know how' people and this reverse is a major one.
when i replace my battery, i tell ya i checked this red wire like 10 times. make sure the neg have a wire hook into the body.
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#9
I believe the '06 gs430 has a bus bar with the main fuse built in. I am not 100% sure... however, if you are lucky, only the main fuse blew. If that's the case, and it's in a bus bar, then the bus bar needs to be replaced.
It could be worse... I had a salesperson jump an RX backwards, and also popped the ecu for power steering...
It could be worse... I had a salesperson jump an RX backwards, and also popped the ecu for power steering...
#11
Lexus Champion
he had to cut his internet to save money to fix his car. LOL j/k
it happen all the time, ppl don't report back. me with my over active imagination I always assume the worst, it's more fun. LOL
His lexus die middle of nowhere due to this problem, an alien abducted him cause he was the only 1 in middle of nowhere. than to escape he uses the only skill he know, he reverse polarity of the battery in the alien space ship and blows all their refuse and he died in the crash and therefor cannot report back to here. LOL
it happen all the time, ppl don't report back. me with my over active imagination I always assume the worst, it's more fun. LOL
His lexus die middle of nowhere due to this problem, an alien abducted him cause he was the only 1 in middle of nowhere. than to escape he uses the only skill he know, he reverse polarity of the battery in the alien space ship and blows all their refuse and he died in the crash and therefor cannot report back to here. LOL
#12
cross polarity on my 06 GS 430
we also test ecu which is good and still has the same problem
any help
#13
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Join Date: Aug 2020
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needed help here please,jump start my lexus and switch cables around,car won't start,so my local mechanic changed all fuse and a few on main bus bar,car starts up and all lights came on on dash,vsc,ect.car has no brakes now and reving very hard.
we also test ecu which is good and still has the same problem
any help
we also test ecu which is good and still has the same problem
any help
#14
cross polarity jump start
hope this helps.
anyways i bought the samw exact car with 70k miles in excellent condition
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