Ask Experts Questions for FREE Help !
Ask
    Tonyc1994's Avatar
    Tonyc1994 Posts: 3, Reputation: 1
    New Member
    		  
    #1

    May 31, 2012, 06:33 PM
    Crossed battery cables
    I was changing the battery to my 1994 Honda accord and I accidentally put the positive on the negative and negative to positive. It's sparked at first but it stopped, but when I went to start it it did nothing. I thought the wires may have been a little loose so when I went to tighten them that's when I noticed my mistake. So what happens in that scenario did I burn something out or shorted out a fuse? I can't find anything
    smoothy's Avatar
    smoothy Posts: 25,490, Reputation: 2853
    Uber Member
    		  
    #2

    May 31, 2012, 06:41 PM
    Quote Originally Posted by Tonyc1994 View Post
    I was changing the battery to my 1994 Honda accord and I accidentally put the positive on the negative and negative to positive. It's sparked at first but it stopped, but when I went to start it it did nothing. I thought the wires may have been a little loose so when I went to tighten them that's when I noticed my mistake. So what happens in that scenario did I burn something out or shorted out a fuse? I can't find anything
    Might have fried the ECU... are you getting any codes off it?
    Tonyc1994's Avatar
    Tonyc1994 Posts: 3, Reputation: 1
    New Member
    		  
    #3

    May 31, 2012, 07:17 PM
    I don't understand? I'm not getting any lights on the dash if that's what you mean. The head lights come on and the horn works, also my hazards come on but that's it. When I turn the key it does nothing
    Tonyc1994's Avatar
    Tonyc1994 Posts: 3, Reputation: 1
    New Member
    		  
    #4

    May 31, 2012, 07:20 PM
    Quote Originally Posted by smoothy View Post
    Might have fried the ECU....are you getting any codes off it?
    None of the dash lights are coming on only the head lights horn and hazards work. What is the ecu? And thanks for your time
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #5

    May 31, 2012, 07:40 PM
    Look in your fuse box for fried fuses.
    TxGreaseMonkey's Avatar
    TxGreaseMonkey Posts: 16,761, Reputation: 5597
    Uber Member
    		  
    #6

    Jun 1, 2012, 04:44 AM
    Test all under hood and under dash fuses with a test light or multimeter.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
    Uber Member
    		  
    #7

    Jun 1, 2012, 05:21 AM
    I would say fuses as well, The starter doesn't need ECU to crank.
    A test light will follow power from battery to starter and to ignition switch and to starter.
    When you find the Fuse? I would check that it is still charging.
    CaptainRich's Avatar
    CaptainRich Posts: 4,492, Reputation: 537
    Cars & Trucks Expert
    		  
    #8

    Jun 1, 2012, 05:48 AM
    You'll likely find the Engine Control Unit (ECU) has suffered damage. Delicate electronics don't like that kind of reverse power surges applied to them.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

1993 Civic Jumper Cables Crossed [ 6 Answers ]

We tried to Jump the car, but of course broke the golden rule, DON'T CROSS THE WIRES!! Now there is nothing happening after I have switched in a Brand New Battery. Are there some simple test I can do to check, or is it too late for anything?

Put the cables on the battery wrong need help! [ 4 Answers ]

Hey I put the battery cables on the battery the wrong way not paying attention burnt the wire that goes from the battery to the alternator fixed the wire but it will crank just fine but won't start up it's a 95 cheverolet 1500 need suggestions please!

Z300, Do I need a battery fitted to check cables for shorts ? [ 4 Answers ]

Nissan Z300 (1986) Turbo. My driver side headlight dip beam does not work. I have put the sealed beam into the passenger side connection, it works. I guess there is a short somewhere? Question 1. Can I check all wires without the car battery connected ? Question2. Putting a meter on and earth...

Crossed battery jumper cables [ 2 Answers ]

My husband who doesn't have a mechanical bone in his body, God bless him, had to jump start our car the other day. He used our 1994 Ford Aerostar to do it. He accidentally mixed up the negative. And the pos. on the van battery but did it correctly on the car battery. Now the van's battery light...

Instructions Needed On How To Properly Use Booster Cables For Dead Car Battery [ 3 Answers ]

HELP! I am embarressed to say, that I DO NOT know how to use my Booster Cables to boost a dead battery in my car. :( I have in the past been nervous of getting an electric shock! That was then, and now I no longer want to be IGNORANT! :D Can someone please tell me, with very EASY SIMPLE...

View more questions Search