Replaced ETCS fuse. Disconnected and Reconnected battery. Issues resolved.
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2008 4Runner: truck started..all the dash warning lights are..throttle
Resolved Question:
I accidently crossed my jumper cables while trying to start my 2008 4Runner. The cables became very hot. After they cooled I connected them correctly and the truck started but all the dash warning lights are on and the throttle is non responsive. How screwed am I?
Submitted: 2 years ago.
Category: Toyota
Expert: Boxer54 replied 2 years ago.
Thank you for trusting Just Answer with your Toyota question. In the underhood fuse box, there is a 10A fuse marked ETCS. Check this fuse first.
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Customer: replied 2 years ago.
That fuse is blown
Customer: replied 2 years ago.
I replaced the fuse with the spare and that did not correct the problem.
Expert: Boxer54 replied 2 years ago.
Ok, you probably have blown the main or ALT fuse. These are the large fuses with clear plastic tops. In the same fuse box you were in, use a flashlight to look into those fuses and you should be able to see if any are blown.
Customer: replied 2 years ago.
None of the fuses with clear tops appear to be blown. I was able to identify the ALT fuse and it also does not appear to be blown.
Customer: replied 2 years ago.
I do have throttle response now.
Customer: replied 2 years ago.
The ABS 30a fuse was blown.
Expert: Boxer54 replied 2 years ago.
Disconnect the battery for a few minutes, then reconnect after replacing the fuse. Let me know if it is normal after that.
Customer: replied 2 years ago.
Replace the fuse and disconnected the battery for 20+ minutes. The VSC, ABS, Brake lights are still on.
Expert: Boxer54 replied 2 years ago.
Is everything else OK? Do you have access to a digital voltmeter or a 12 volt test light?
Customer: replied 2 years ago.
Everything seems to be working correctly. Cranks fine, throttle is working again. Brakes are working. The car will shift out of park.
I have a friend with a volt meter. I will try and get it. Can I respond to you later in the day?
Expert: Boxer54 replied 2 years ago.
Absolutely.
Customer: replied 2 years ago.
When I do get the volt meter, what all do I need to check?
Expert: Boxer54 replied 2 years ago.
Need to check the ABSENT fuse again and see if it is blown. If it is, remove it and check across the fuse terminals for battery voltage. In other words, one lead of the meter to each side of the fuse terminals. If we get battery voltage, we have a short to ground. Probably at the ABS computer. What we then need to do is unplug ALL the connectors from the ABS computer and see if the short goes away. If it does, the computer is shorted inside and will need to be replaced. I have seen this before in these situations.
Customer: replied 2 years ago.
Update:
I found another fuse associated with the ABS that was blown. After I replaced it and disconnected the battery, the warning lights are off!!
I pretty sure I dodged a bullet.
Thanks for your help today.
Expert: Boxer54 replied 2 years ago.
Great!!!!. Keep us in mind for all Your future needs.
Boxer54, Toyota Technician
Category: Toyota
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