What does it mean when the battery says disconnected?
If it says ‘battery disconnected’ it probably means that your battery is not touching the pins properly. I had the same problem and i put a small wad of folded paper behind the battery and then slid it in its place. The battery is now pushed firmly against the pins and voila! the connection is proper and no more ‘battery disconnected’ !
What happens if you disconnect the battery and use the code Saver?
So, if you’ve disconnected the battery but put the code-saver in place, and then you go play DIY auto electrician and accidentally put some voltage into one of the car’s bright yellow airbag deployment wires, you’ll deploy the airbag. (good safety tip: all the car’s airbag deployment wires are bright yellow. It’s the law.) Best-case scenario?
Do you get P1000 codes when batteries are disconnected?
You noted in the other thread (which I’m deleting, because the truck can’t be both a 2008+ and a 1999-2007 truck at the same time)… that he got no codes from a diagnostic reader. The PCM will always give at least a P1000 code when the batteries have been disconnected.
How long should battery be disconnected to reset ECU?
1 Open up the hood. 2 Remove the positive terminal cable from the battery using your pliers or wrench. 3 Go to your fuse box in your car, and look at the diagram. Select the fuse that is labeled “ECM” and remove this fuse. 4 Keep the car disconnected like this for two to three minutes to clear the computer’s memory.
What happens when you disconnect the battery on a car?
The best way to do this would be with a scanner, but if you don’t have one, disconnecting the battery will do the trick on many vehicles. However, disconnecting the battery will not only erase diagnostic trouble codes but also erase drivability, security and radio codes in many vehicles.
How do you change a car battery without losing the radio code?
Put the clamp back in place and tighten the bolt (s) that hold it in place. Fire up the car to ensure that the new battery has been successfully fitted. Now try the radio. If you have follwed this guide correctly, the power to your radio will not have been cut and your radio will not require programming with the radio code.
Where is the battery code in the owner’s manual?
In most cases they include the code in your owner’s manual. Sometimes the dealer supplies it at the time of delivery. This may not do any good if you bought it off a used car lot. Also note that disconnecting the battery on cars with a factory installed alarm or active theft system can cause problems.
1 Open up the hood. 2 Remove the positive terminal cable from the battery using your pliers or wrench. 3 Go to your fuse box in your car, and look at the diagram. Select the fuse that is labeled “ECM” and remove this fuse. 4 Keep the car disconnected like this for two to three minutes to clear the computer’s memory.