DIY Dodge Repairs and Maintenance

Dodge Check Engine Light Blinking 9 Times, What is the Cause?

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Dodge check engine light blinking 9 times is an indication that the vehicle’s computer has detected a problem with the emissions system. The computer will continue to blink the check engine light until the problem is fixed.

The most common cause of this problem is a faulty oxygen sensor, which is located near the catalytic converter. The oxygen sensor measures the amount of unburned fuel in your exhaust and sends this information to your vehicle’s computer, which then adjusts for optimal performance. If your oxygen sensor becomes clogged or damaged, it can’t send accurate readings to your car’s computer and its performance may be compromised.

Dodge Check Engine Light Blinking 9 Times, What Should I Do?

The Dodge check engine light blinking 9 times is a warning that something is wrong with your vehicle. This could be anything from a loose gas cap to a faulty catalytic converter. The problem can range from minor to extremely serious, so you’ll want to have it checked out as soon as possible.

The first thing you should do when the Dodge check engine light blinking 9 times is contact your mechanic and schedule an appointment for them to look at your car. They’ll use their diagnostic tool to determine what is causing the problem, and let you know if it’s something minor or something serious enough to warrant immediate repair. If it’s not an urgent issue and they find that it’s just a loose gas cap or something like that, they may choose not to replace whatever part caused the light to come on in the first place (saving you both time and money).

The number of flashes indicates which sensor or system is causing the problem and what action needs to be taken. The codes are as follows:

Blinking Code Meaning Action Required;

  • Continuously Flashing CHT (Engine Coolant Temperature) Sensor A problem has been detected in the cooling fan circuit or sensor No action required
  • Repeatedly Flashing TPS (Throttle Position Sensor) A problem with the throttle position sensor has been detected No action required
  • Repeatedly Flashing EGR (Exhaust Gas Recirculation) System A problem has been detected with the EGR valve No action required.
4 1
  • IAC (Idle Air Control Valve) Flashing Repeatedly A problem has been detected with the idle air control valve. No action required
  • Repeatedly Flashing MAP (Manifold Absolute Pressure Sensor) A problem has been detected with the manifold absolute pressure sensor. No action required
  • O2S1 (First Oxygen Sensor) Flashing Repeatedly A problem has been detected in the first oxygen sensor or circuit.
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