2012 INFINITI G37 Won't Start

Common Causes for Your 2012 INFINITI G37 Not Starting and How to Resolve Them

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Reviewed by
Aisha
Written by RepairPal Car Genius
Updated January 14, 2025
0%
38% chance it's the
Battery
0%
27% chance it's the
Alternator
0%
20% chance it's the
Starter
0%
15% chance it's
Something else
The most common reasons a 2012 INFINITI G37 won't start are a dead battery, an alternator problem, or failed starter.
  • Battery: A weak or failing battery can result in difficulty starting the engine and electrical system malfunctions.
  • Alternator: A failing alternator can result in insufficient electrical power, leading to battery drain and electrical system malfunctions.
  • Starter: A faulty starter motor or a weak battery can prevent the engine from cranking properly, leading to starting issues.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What steps should I take to diagnose why my 2012 INFINITI G37 won't start?

To effectively diagnose why your 2012 INFINITI G37 won't start, begin with a systematic approach that prioritizes simpler checks before delving into more complex diagnostics. Start by examining the battery, as a dead or weak battery is a common culprit; ensure it is fully charged and that the terminals are clean and securely connected. Next, inspect the fuel system by confirming there is adequate fuel in the tank and listening for the fuel pump's activation when you turn the ignition key. Following this, assess the ignition system, which includes checking the ignition switch, spark plugs, and ignition coils for any signs of malfunction. Utilizing an OBD-II scanner can provide valuable insights by revealing any error codes that may point to specific issues. If the starter motor is suspected, listen for clicking sounds when attempting to start the vehicle, as this can indicate a problem. Additionally, verify that the alternator is functioning properly to ensure the battery is being charged. Lastly, check the security system to rule out any immobilization that could prevent the car from starting. If these steps do not resolve the issue, consulting a professional mechanic may be necessary for a more thorough diagnosis. By following this structured approach, you can efficiently identify the root cause of your vehicle's starting problem.

What are the common problems that could cause a 2012 INFINITI G37 to not start?

When your 2012 INFINITI G37 refuses to start, it can be frustrating, but understanding the common problems can help you troubleshoot effectively. One of the first things to check is the battery; a dead or weak battery is often the culprit, especially if the vehicle has been sitting idle or exposed to extreme weather. If the battery is in good condition, the next step is to inspect the starter motor, as a faulty starter can prevent the engine from cranking. Additionally, issues within the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump, can hinder fuel delivery, making it impossible for the engine to start.

Don't overlook the ignition system; a malfunctioning ignition switch or worn spark plugs can disrupt the ignition process, leading to starting difficulties. Similarly, a faulty ignition coil can prevent the necessary spark from igniting the fuel. If these components check out, consider the fuel pump relay, as a failure here can stop fuel from reaching the engine. Security system malfunctions, including problems with the immobilizer or key fob, can also prevent the car from starting. Lastly, if all else fails, the Engine Control Module (ECM) may be at fault, as it plays a crucial role in managing engine operations. By systematically addressing these potential issues, you can effectively diagnose and resolve the starting problems with your INFINITI G37.

How urgent is it to address the starting issue in a 2012 INFINITI G37?

When dealing with a starting issue in a 2012 INFINITI G37, understanding the urgency of the situation is crucial for any DIY enthusiast. If your vehicle fails to start completely, it is imperative to address the problem immediately to avoid being stranded or risking further damage to the engine and electrical systems. Intermittent starting problems, while seemingly less urgent, should not be ignored, as they can escalate into more severe issues if left unresolved. Additionally, if your vehicle's onboard diagnostics reveal any trouble codes related to the starting system, these should be investigated promptly to prevent complications that could affect the vehicle's performance and safety. Safety is paramount; if the starting issue is linked to critical safety systems, immediate action is necessary to ensure your well-being on the road. Ultimately, while some issues may appear minor, the potential for significant damage or safety risks makes it essential to address any starting problems in your INFINITI G37 without delay.

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