Is your Jeep’s remote start suddenly not working, and the check engine light just came on? You’re not alone, and this can be frustrating, especially when you rely on remote start to warm up or cool down your vehicle quickly.
The good news is that these two issues are often connected, and understanding why can help you fix the problem faster. You’ll discover the common reasons behind your Jeep’s remote start failure linked to the check engine light, simple steps to troubleshoot it, and what to do next.
Keep reading to get your Jeep running smoothly again without the guesswork.
Common Causes
Several common issues can cause your Jeep’s remote start to stop working, especially when the check engine light is on. Understanding these causes helps you pinpoint the problem faster and get back on the road with ease.
The check engine light often signals a fault that disables the remote start feature. Other factors like key fob problems or vehicle conditions also play a role.
Check Engine Light Triggers
The check engine light usually means the engine control unit found an issue. This can include problems with sensors, emissions, or ignition systems. When this light is on, the remote start often gets disabled for safety and performance reasons.
Key Fob Battery Issues
A weak or dead key fob battery can stop the remote start from activating. The vehicle may not recognize the signal, preventing it from starting remotely. Replacing the battery often solves this problem quickly.
Open Doors Or Hood
The remote start system checks if all doors and the hood are closed. Any open door or hood will stop the remote start from working. This safety feature prevents the vehicle from starting when it is not secure.
Low Fuel Or Coolant Levels
Low fuel or coolant levels can disable remote start. The system needs these levels to be above a certain point to protect the engine. Filling up fuel or topping off coolant can restore remote start function.
Faulty Sensors And Coils
Faulty sensors or ignition coils can cause the check engine light to come on. This issue also stops the remote start from working. Replacing or repairing these parts usually resolves the problem.
Diagnosing The Problem
Diagnosing why your Jeep remote start is not working alongside a check engine light can be straightforward. You need to follow clear steps to find the root cause. This process involves tools and simple checks. Each step helps rule out common problems quickly.
Using An Obd-ii Scanner
An OBD-II scanner reads error codes from your Jeep’s computer. These codes explain why the check engine light is on. Connect the scanner to the port under the dashboard. Turn on the ignition without starting the engine. The scanner will show codes that point to specific issues. Note these codes and look them up online or in the manual. This step helps you understand if the problem affects remote start.
Visual Inspection Tips
Look over your Jeep carefully. Check if the hood is fully closed. Remote start won’t work if the hood switch is open. Inspect all doors and the trunk to ensure they are locked. A door sensor fault can stop the remote start. Also, check for loose wires around the engine and battery. Signs of corrosion or damage may block signals needed for remote start.
Checking Remote Start Programming
Remote start systems need correct programming to work. Review your Jeep’s user manual for programming steps. Sometimes the system resets after battery changes or faults. Try reprogramming the remote start using the key fob or vehicle controls. Check if the remote start feature is enabled in the vehicle settings. Incorrect settings can disable the remote start without warning.
Battery Condition Check
The battery powers your Jeep and remote start system. A weak or dead battery can cause the check engine light and stop remote start. Test the battery voltage with a multimeter. A healthy battery should have at least 12.4 volts when off. Also, check the key fob battery. A low fob battery weakens the signal and prevents remote start activation.
Frequently Asked Questions
Will My Remote Start Stop Working If My Check Engine Light Is On?
A check engine light often disables remote start to protect your vehicle. Fix the issue to restore remote start functionality.
Can A Low Key Fob Battery Cause A Check Engine Light?
A low key fob battery does not cause a check engine light. The light signals engine or emissions issues, not key fob problems.
How Do I Reset My Autostart Remote Starter?
To reset your autostart remote starter, turn the ignition on and off three times quickly. Then, press and hold the lock and unlock buttons on the remote simultaneously for 15 seconds. Release and test the remote to confirm the reset.
Can A Remote Starter Cause Engine Problems?
A remote starter rarely causes engine problems. Faulty installation or low battery may trigger check engine lights. Regular maintenance prevents issues.
Conclusion
A check engine light often stops Jeep remote start from working. Simple issues like a low key fob battery or open doors can also cause problems. Always check these basics first before seeking professional help. Using an OBD reader can reveal error codes quickly.
Regular maintenance keeps your Jeep running smoothly and your remote start functional. Stay attentive to warning lights to avoid surprises. Taking small steps helps fix remote start issues fast. Keep your Jeep ready and enjoy the convenience of remote start without hassle.
