Your Car Won’t Start; If you have a faulty ECM, your vehicle might be difficult to start or may not start at all when you put the key in the ignition or press your vehicle’s start button.

Your Car Won’t Start; If you have a faulty ECM, your vehicle might be difficult to start or may not start at all when you put the key in the ignition or press your vehicle’s start button.

The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions.

Your Car Won’t Start; If you have a faulty ECM, your vehicle might be difficult to start or may not start at all when you put the key in the ignition or press your vehicle’s start button.

Your Car Won’t Start; If you have a faulty ECM, your vehicle might be difficult to start or may not start at all when you put the key in the ignition or press your vehicle’s start button.

The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions.

Your Car Won’t Start; If you have a faulty ECM, your vehicle might be difficult to start or may not start at all when you put the key in the ignition or press your vehicle’s start button.

The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions.

The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions.

The electronic control module (ECM) or powertrain control module (PCM) is the main computer that controls many of the vehicle’s essential functions.