[kkurtz]

Hey Folks,
Got a 2010 6-cylinder sport. Love it. 250+ K and still going.
BUT..
Battery died, tried to jump it, stupidly reversed the polarity, corrected, jumped, started, but the car is now in LIMP mode. 1K RPM and 5 mph, no more.

Car was running good before the self-inflicted problems. :/

Checking all the fuses now. So far, nothing, but still working on the under dash fuses...tough for me to get to those.

FYI - the fuse boxes under the hood, driver and pass sides are all good.

FYI - The battery was bad and I replaced it before I started troubleshooting the limp mode.

 

[Avisitor]

Not familiar with the RAV4 battery. There seems to be a fuse box on the battery. Some models have it on the positive post. Other models have it on the negative post. It seems to be the big fuses. Those should be checked. See if the cable going to the fuse box in the engine bay has any power. Good luck.

 

[kkurtz]

yes, there is power going into the fuse box.
Update: There is a DTC
P2118 - Throttle Actuator Control Motor Current Range/Performance
Anyone seen this before?, especially after reversing the cables during a jump?
Thanks

 

[Dr. Dyno]

Many threads on fixing this reversed jump issue. Try a search.

 

[kkurtz]

Hey guys, this was all due to a blown fuse, which I missed due to me putting a replacement for the blown fuse into the wrong slot, which is normally unused.. Once I realized there was a missing fuse , and put one in, the limp mode was gone. About 200 miles later the code cleared, the check engine, AWD , and trac lights also went out. Thanks for the inputs.

 

[Big Bird]

ETCS fuse? I think 10A. It is the first to go. Glad that it did not take out the 'fusebus' . That is a pain.

I think you will notice a low idle when warm. Clean the thottle body and you should be good to go.

 

[Janvier]

Hey Folks,
Got a 2010 6-cylinder sport. Love it. 250+ K and still going.
BUT..
Battery died, tried to jump it, stupidly reversed the polarity, corrected, jumped, started, but the car is now in LIMP mode. 1K RPM and 5 mph, no more.

Car was running good before the self-inflicted problems. :/

Checking all the fuses now. So far, nothing, but still working on the under dash fuses...tough for me to get to those.

FYI - the fuse boxes under the hood, driver and pass sides are all good.

FYI - The battery was bad and I replaced it before I started troubleshooting the limp mode.

hello my friend ！
how have you solved it same situation on my 2008 rav4 badly jumped and now no pedal response at all！do I need new ECU？

 

[Dr. Dyno]

Many threads on fixing this reversed jump issue. Try a search.

 

[Janvier]

Many threads on fixing this reversed jump issue. Try a search.

thanks very much！ I have passed through many threads but only fuse is replaced ！
but in my case replacing fuse made no difference🙆

 

[Blogson]

There generally is more than one fuse involved. Fuses need to be tested with a continuity tester since a visual check alone is not reliable. Did you check this thread? Lots of reading but a rather thorough explanation: Effects of reversing battery polarity - with fixes.

 

[Avisitor]

Hopefully reverse polarity jumping the battery only blows a fuse or two. I have done it on my 2001 Elantra (long gone to the parking lot in the sky). So, after replacing fuses, check to make sure all the other things work. It can take out the radio and other electronic components.

 

[Janvier]

hello my friend ！
how have you solved it same situation on my 2008 rav4 badly jumped and now no pedal response at all！do I need new ECU？

With 2008 rav4
I guess a guy messed up with the jump starting process!
I don't know but because according to the symptoms/clues I have seen here including
@The fuse of ETCs 10A burnt out
@The fuse of ALT 120A burnt out
@The only faults I have are blaming the throttle body actuator motor circuit!
@ accelerator pedal is useless
Tested Throttle body actuator no problem
Tested continuity from actuator to module no problem
Tested accelerator position sensor; it's circuit no problem, headache 😔.
It is an indicator of the crossed jump starting process!
By Searching I found that only fuse replacement is common saviour but does no help for me Strong headache!

Sometimes if "person A" is blaming "person B"
They're two possibilities
1.person B is wrong Or
2.person A is Wrong

So by suspecting the ECM this is what I have found in it
current forced Two legs were to go for a visit 😂

By having another ECU the car is happy again on uphill condition!

you see ECU blaming ETCS !!! While it is the one to be blamed 🙆