You can disconnect and reconnect the battery or You can reset the fuse housed within the engine control module. Replacing the battery is as straightforward as it sounds. Simply disconnect it, set it aside for about twenty minutes and then reconnect it.
How do you reset the computer on a Chevy Malibu?
Simply disconnect it, set it aside for about twenty minutes and then reconnect it. If this doesnt reset the computer, Youll need to access the fuse box to reset the fuse. Follow the instructions on Your ownership manual to locate the fuseboxAnd reset the fuse.
How do I reset my Chevy ECM?
Remove the nut off the negative battery cable with a socket set or wrench. Slide the cable off of the battery and put it aside. Turn the headlight switch to the “on” position to drain the ecm of any remaining power. Wait at least 10 minutes , then turn it back to the “off” position.
What is ECM malfunction on Chevy Malibu?
The. condition is caused by an error in the ECM software, which was programmed by GM's. supplier of the modules. In rare cases this condition can cause the engine to stall at speed and without warning , increasing the risk of a crash.
How do I reprogram my ECM module?
How Do I Reprogram an ECM? It's not like changing the oil in your garage — it requires expensive, professional tools . With these tools the whole process is fairly simple and it's almost entirely automated. No parts need be removed.
Will disconnecting battery reset ECU?
Will Disconnecting a Car Battery Reset The Computer? ... Disconnecting the battery for a short time may not do the trick because the car's computer, or ECU, still has some current in it. Waiting for over 15 minutes after disconnecting the engine will help ensure the equipment is reset.
What are the signs of a bad ECM?
- Check Engine Light Starts Flashing. ...
- Stalling or Misfiring Engine. ...
- Engine Performance Issues. ...
- Vehicle not starting. ...
- Poor Fuel Efficiency.
Where is the ECM located on a 2009 Chevy Malibu?
Remove the positive terminal cable from the battery using needle nose pliers . Go to the fuse box, and look at the diagram. Select the fuse that is labeled “ecm” and remove this fuse.
Is there any recalls on a 2018 Malibu?
Chevrolet is recalling 177,276 of its 2018 Malibu sedans because a software problem could disable the fuel injectors . If that happens, the engine may not start, or might stall while the car is in motion, according to the National Highway Traffic Safety Administration.
Does a used ECM need to be reprogrammed?
While it's built to last, it needs to be reprogrammed to ensure that everything is functioning optimally . Several parts may experience wear due to constant friction, and engine parts may loosen because of vibrations.
Can a ECM be repaired?
The first, and easiest, way to repair an ECM is if there's a problem with the power supply . Oftentimes, these can be repaired by a skilled mechanic or electrician, by rectifying any shorts or bad connections. ... Basically, unless it's a simple power supply issue, ECMs are challenging to repair.
Why would a car's computer need to be reprogrammed?
Reprogramming can improve spark plug timing and fuel enrichment —and can help boost pressure on turbocharged engines to squeeze out every last drop of horsepower. Reprogramming your ECM is necessary for keeping your vehicle control software up to date.
How long does it take for ECU to relearn?
When resetting the ECU it will take about 50km (31 miles) to relearn.
How do you reset your car's computer?
While disconnecting the battery is the most common method of resetting your computer , it's not always the best way. That's because disconnecting the car battery causes your computer to lose its memory. So, things like your preset radio stations, shift points, and your car's ideal fuel/air mixture are forgotten.
Where is the ECM fuse located?
The power distribution center is located under the hood and contains almost every single one of the vehicle's fuses and relays. The ECM power relay, or the PCM relay, acts as a switch that provides power to the ECM.
Can I drive my car with a bad ECM?
If the ECM were to become damaged or faulty, then it could spell trouble for the entire engine because it would not be managed properly . If the engine is not managed properly, then it is not going to operate properly and then your car won't work properly.
