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06 Highlander electrical problem
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MoeFugga
Novice
Nov 21, 2019, 8:21 AM
Post #1 of 11
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06 Highlander electrical problem
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2006 Toyota Highlander 2.l 4cyl, 116k miles
Hey all,
I went to start my car up the other day and got nothing. Zero power whatsoever. Took the battery in, tested bad so I got a new one and popped it in. Now when I turn the key, I get headlights (presumably taillights too, didn't check), interior lights, the backlight on the instrument cluster and the check engine and open door lights as well as the chime to indicate the door is open, but no radio or climate control. Engine doesn't crank, no noise from the starter. I replaced one blown fuse that I believe is for the audio system, the other fuses all seem to be fine. I had last driven the car a couple days prior and there were no issues at that time. Any advice would be greatly appreciated.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Nov 21, 2019, 9:51 AM
Post #2 of 11
(2114 views)
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Re: 06 Highlander electrical problem
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Seems silly but did they test the new battery and charge it before you took it? Did in fact the old battery also test a real "zero?"
Audio System? Original or some rolling boom box now - just asking.
Right for now since no starter noises at all the rest means little takes no real power. Check the entire cable ends at the battery. If all corroded, don't tighten well or hacked up you need to begin there. Nothing is going to happen well if all messed up right there must be clean, intact and secure,
T
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 21, 2019, 12:14 PM
Post #3 of 11
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Re: 06 Highlander electrical problem
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I suspect the battery wasn't actually that bad and they just took advantage of the opportunity.
The actual problem still needs to be found.
So, did the audio system come back on when you changed the fuse?
Did you by chance hook up jumper cables the wrong way trying to get this started?
I assume this isn't a Hybrid Highlander.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Nov 21, 2019, 12:15 PM)
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MoeFugga
Novice
Nov 22, 2019, 7:19 AM
Post #4 of 11
(2073 views)
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Re: 06 Highlander electrical problem
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I can say that the battery wouldn't take a charge at all from home so I'll give them the benefit of the doubt. There was initially no power whatsoever, with the new battery I at least get lights. No radio after changing the blown fuse, that fuse was for the radiator fan. And it isn't just the radio, but no climate control or windows either. I did notice the clamps are not as right as they could be, but as tight as I can make them so I'm heading out to get some new clamps and cables and we'll see how that goes.
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 22, 2019, 7:48 AM
Post #5 of 11
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Re: 06 Highlander electrical problem
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Go back and check the connections at the battery again. There are often separate, smaller leads connected that feed accessories and possibly the ignition switch. Make sure they are not left off and connected clean and securely.
Other than that you make have a blown fusible link or maxi fuse. I believe Toyota uses a plastic bar that is comprised of multiple, high current fuses they call fusible links.
Beyond any of these obvious things you would have to use a wiring diagram and systematically follow the current flow to find out where it is being lost.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MoeFugga
Novice
Nov 24, 2019, 6:01 PM
Post #6 of 11
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Re: 06 Highlander electrical problem
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Ok - replaced the 140a fuse and we have power. Engine starts, lights, radio, AC, all that. Problem now is there's no response from the accelerator. I don't suppose that's something as simple as a blown fuse?
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Hammer Time
Ultimate Carjunky
/ Moderator
Nov 24, 2019, 6:04 PM
Post #7 of 11
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Re: 06 Highlander electrical problem
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It could be. That's a drive by wire system. It could also be a stored trouble code for the throttle system.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MoeFugga
Novice
Nov 24, 2019, 6:15 PM
Post #8 of 11
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Re: 06 Highlander electrical problem
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I'll go back through the fuse box tomorrow. Any way to clear that code that you're aware of?
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Hammer Time
Ultimate Carjunky
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Nov 24, 2019, 6:19 PM
Post #9 of 11
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Re: 06 Highlander electrical problem
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I'm not aware of any code being stored. I suggested that you should check for that. Clearing it is not the answer. The code is helpful diagnostic information if there is one.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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MoeFugga
Novice
Nov 25, 2019, 9:17 AM
Post #10 of 11
(2002 views)
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Re: 06 Highlander electrical problem
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Well this was an adventur I don't care to repeat. Went through the fusebox and found the ETCS fuse blown. Swapped that with the 10a fuse from the horn and the car now runs and drives. Grabbed some new fuses at the store and I'm in better shape than I was. The "Engine," "Brake," "ABS," "VCS" and "Trac Off" lights are on. I have no brake lights. I grabbed a new gas cap since the one I had was pretty garbage and I know that is a common cause of the engine and vcs lights coming on. Popped that on, no more engine light but the rest are still there. The tail lights themselves are fine, as is the reverse light, just nothing when I hit the brakes. Checked the fusebox again and found a 30a ABS fuse blown. Missed it at first glance because the break was so small. Replaced that, all lights cleared and we are back in business! Thanks for the advice y'all, it was much appreciated!
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Hammer Time
Ultimate Carjunky
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Nov 25, 2019, 9:23 AM
Post #11 of 11
(1998 views)
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Re: 06 Highlander electrical problem
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There is really only one explanation for all these fuses blown............
The battery cables or jumper was hooked up backwards. You will be very lucky if the fuses are the only problem and you don't have some fried control modules.
It's a shame you didn't admit that in the first place. This would have gone much quicker.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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