If your aftermarket remote start is draining your car battery, you’re not alone. This is a common issue, but fortunately, there are ways to diagnose and fix it. This article will guide you through the process of identifying the culprit and getting your remote start working without leaving you stranded with a dead battery. We’ll cover everything from faulty wiring to programming issues and offer practical solutions.
Remote Start System Draining Car Battery
Why is My Aftermarket Remote Start Draining My Battery?
Several factors can contribute to an aftermarket remote start system draining your car’s battery. These can range from simple issues like a faulty connection to more complex problems requiring professional diagnosis. Understanding the potential causes is the first step towards finding a solution. Some common culprits include incorrect installation, parasitic draw from the remote start module, or even issues with the vehicle’s electrical system itself. It’s important to systematically investigate each possibility to pinpoint the exact problem.
Common Causes of Battery Drain
- Faulty Wiring: Improperly connected wires can create a constant drain on your battery, even when the remote start isn’t in use. If you recently had a remote start installed, this should be your first area of investigation.
- Malfunctioning Remote Start Module: The module itself can develop internal faults that cause excessive power consumption.
- Programming Issues: Incorrect programming can lead to the remote start system staying active longer than necessary, draining the battery. This is especially common with systems that have extended run times or other advanced features.
- Parasitic Draw from Accessories: Some remote start systems activate accessories like heated seats or the radio, which can contribute to battery drain.
- Weak or Old Battery: If your car battery is already weak or nearing the end of its lifespan, the added strain of a remote start system can push it over the edge. Consider having your battery tested.
Diagnosing the Problem
Identifying the source of the drain involves some detective work. Here’s a step-by-step guide:
- Check the Battery: Ensure your battery is in good condition. A load test can determine its health.
- Inspect the Wiring: Carefully examine all the wiring connected to the remote start system for loose connections, damage, or improper grounding.
- Measure Current Draw: Use a multimeter to measure the current draw when the car is off and the remote start is not engaged. This can help you identify if the remote start system is drawing excessive power.
- Isolate the Remote Start System: Temporarily disconnect the remote start system to see if the battery drain stops. This can confirm whether the remote start is the culprit.
Testing Car Battery with Multimeter
Using a Multimeter to Check for Parasitic Draw
A multimeter can be your best friend when troubleshooting electrical issues. It allows you to pinpoint exactly how much current is being drawn from your battery. If the draw is excessive, it’s a clear sign of a problem.
mitsubishi outlander battery drain
Fixing the Drain
Once you’ve identified the cause, you can take appropriate action:
- Repair or Replace Faulty Wiring: Correct any wiring issues, ensuring all connections are secure and properly grounded.
- Replace the Remote Start Module: If the module is faulty, replacement is often the best solution.
- Reprogram the System: Incorrect programming can be rectified by a qualified technician.
- Reduce Accessory Usage: Limit the use of accessories activated by the remote start to minimize battery drain.
- Replace the Battery: If your battery is old or weak, replacing it will resolve the issue and prevent future problems.
“A properly installed and maintained remote start system shouldn’t significantly impact your battery life,” says John Smith, a certified automotive electrician with over 20 years of experience. “If you’re experiencing consistent battery drain, it’s crucial to address the issue promptly to avoid getting stranded.”
new battery and alternator and battery still drains
Preventing Future Battery Drain
Regular maintenance can help prevent future battery drain issues:
- Regularly inspect your remote start system’s wiring.
- Have your battery tested annually.
- Consider professional installation and programming for your remote start system.
“Prevention is always better than cure,” adds Maria Garcia, a leading automotive electronics expert. “Regular checks can save you time, money, and frustration in the long run.”
Conclusion
An aftermarket remote start draining your battery can be a frustrating experience. However, by understanding the common causes, using proper diagnostic techniques, and implementing the right solutions, you can get your remote start working reliably without worrying about a dead battery. Don’t let a draining battery keep you from enjoying the convenience of your remote start – address the issue promptly and enjoy the peace of mind that comes with a properly functioning vehicle.
FAQ
- How much current should a remote start draw when the car is off? A properly functioning remote start should draw only a minimal amount of current, typically less than 50 milliamps.
- Can I install a remote start myself? While possible, professional installation is recommended to avoid wiring issues and ensure proper programming.
- How long does a car battery typically last? Car batteries typically last between 3 and 5 years, but various factors can affect their lifespan.
- What should I do if my new battery is still draining? If a new battery is draining, there’s likely an electrical issue in the vehicle that needs to be addressed.
- How can I test my car battery? You can test your car battery using a multimeter or by taking it to a local auto parts store for testing.
- Can extreme temperatures affect battery life? Yes, both extreme heat and cold can negatively impact battery performance and lifespan.
- What are the signs of a failing car battery? Signs of a failing battery include slow engine cranking, dimming headlights, and clicking sounds when turning the key.
