What should I do if my ECU has been reset?
Turn the ignition to the “On” position but don’t crank the engine (it won’t start anyway). Wait five minutes and reinsert the fuse. The “Check Engine” light will blink, then shut off. This will indicate that your ECU has been reset. “Auto Repair For Dummies”; Deanna Sclar; IDG Books Worldwide; 1999
When to reset the ECU after changing an O2 sensor?
Sometimes an O2 sensor fails, and you need to replace it. Once you’ve replaced your vehicle’s O2 sensor, you’ll need to reset the ECU so it can properly gather information from the new O2 sensor.
Where is the fuse for the ECU located?
Locate the fuse for the ECU using the fuse diagram on the underside of the fuse panel cover. Pull the fuse for the ECU using the fuse pullers in the fuse panel. Turn the ignition to the “On” position but don’t crank the engine (it won’t start anyway).
Why is my ECU not working on my RAV4?
1. When I told him about the resistor solder joints. He immediately concluded the bigger resistor’s higher inertia in a car that is bouncing around might be the cause. 2. He said these circuit boards use lead free solder which becomes brittle. He used leaded solder for touch up. He said leaded solder responds much better to shaking.
What to do if you have a problem with your ECU?
Here are the steps to take, when facing this problem. #Step 1. Don’t attempt to open or mess with the ECU or ECM, unless the technician is qualified for the car in question. The engine diagnostic and code reading machine should tell, what the problem is.
Why does my ECU go bad when I jump start my car?
If the voltage is 6 or less, then this is likely causing your ECU problems. Whenever a jump start is performed on your battery, you need to ensure that the jumper cables are attached properly. If you perform a jump start with the cables attached incorrectly, then it could short out your ECU by causing it to spike too quickly.
Why is my ECU not working on my VW Golf?
Common failing engine ECU that causes intermittent or complete none starting of the engine. Very common ECU fault causing complete non start of the engine and diagnostic communication problems. Common failing instrument cluster for the VW Golf MK5 that causes complete or intermittent loss of display and/or incorrect reading guages.
Can a car ECU be repaired in a jiffy?
Now, getting an ECU or ECM repaired is not a piece of cake because it can’t be fixed just like that in a jiffy. Any attempt to open or mess with an ECU or ECM will end very badly. It houses the software and hard drive that controls all the functions of a car engine. Here are the steps to take, when facing this problem. #Step 1.