Battery, ABS, Handbrake and Airbag light

[Betgil Lurker Find all posts View Profile Close Betgil]

After a little advice if anyone can help? Our 2008 Prado had to be towed after the battery light, ABS light, handbrake light (when not on), and airbag light came on while driving. We then lost acceleration. The car could restart using the second battery but not accelerate. Any ideas on what could be wrong?

[Guest Close Guest]

Its gone into limp mode.. Need to get a code reader put on it to see what codes have been thrown.. If no code reader you can disconnect the battery for <> 30 mins to reset the computer. See if it starts and drives OK then. Getting the codes read however will make it a lot easier to know whats going on.

[Guest Close Guest]

Your description, kind of points towards a failed battery as well, perhaps not charging, are you 100% sure of the lights? Battery light could be a failed alternator (not charging) Meaning it ultimately died. Low batteries make them do strange things.. I would call the RACQ (if in them) and have them come look at it, they should be able to check if charging and read the codes too.

[Betgil Lurker Find all posts View Profile Close Betgil]

Thank you for your reply, both batteries were replaced in April and are reading as full. Good advice about disconnecting the battery, will give that a go. It is definitely in limp mode, it just got to a suitable towing spot. It cranks over on the second battery like they’re dead, but they are fully charged.

[Guest Close Guest]

How have you checked they are fully charged? You need to multimeter them, then get the car started to see if the alternator is charging them. I had a brand new battery fail on me just 6 days in, a couple months ago... You never know whats going on till testing stuff.

[BigT01 Junior Member Find all posts View Profile Close BigT01]

sounds to me that these batteries need to be load tested, they may read 12v until a load is put on them , then may only read 10.5 thus the slow turn of starter.

Tony

[Betgil Lurker Find all posts View Profile Close Betgil]

Both batteries are reading 13.5V on a multimeter and are drawing 2V on start up.

[JohnLynn Senior Member Find all posts View Profile Close JohnLynn]

I hope you mean they are dropping BY 2 volts not dropping to 2V or they have had it!

[Guest Close Guest]

He said Drawing, I take that to mean its dropping to 11.5 volt on startup.. So is this the voltage sitting? What is it when car is running?

[JohnLynn Senior Member Find all posts View Profile Close JohnLynn]

Yes I didn't like to start complaining that drawing usually means current, and I couldn't see how starting current could be measured with a multimeter. In fact I tried to delete my post but didn't know how, sorry my contribution wasn't very helpful.

[sweetpea Senior Member Find all posts View Profile Close sweetpea]

both batteries were replaced in April and are reading as full. ..... . It cranks over on the second battery like they’re dead, but they are fully charged.

Why does it not crank on the starting battery?

What is the voltage on the starting battery when you crank with the second battery disconnected.

Have you checked that the battery terminals on the starting battery are clean and tight.

S.

[GEEEXL Member Find all posts View Profile Close GEEEXL]

After a little advice if anyone can help? Our 2008 Prado had to be towed after the battery light, ABS light, handbrake light (when not on), and airbag light came on while driving. We then lost acceleration. The car could restart using the second battery but not accelerate. Any ideas on what could be wrong?

haven't lost the serpentine / belt?

have you checked voltage at the starter motor