This guide discusses the usual problems that cause the Dodge inspect engine light to remain on and also how to diagnose the difficulty yourself. 

What does Dodge examine Engine LightEngine irradiate Mean?


If her Dodge examine Engine LightEngine Light (CEL) is remaining on as soon as you begin the car or comes on when driving, it shows that the On-Board Diagnostics (OBD) system has actually detected a problem.

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A solid examine engine light does not always mean an emergency, yet it is crucial to have the codes check out as shortly engine light does not always mean an emergency, yet it is essential to have actually the codes review as shortly as possible.

If your Dodge inspect engine light engine irradiate is flashing, it way the ECU has detected an engine misfire. Carry out not run your automobile for an extensive period. Driving once the examine engine is flashing can reason damage to the engine and cataltyic converter.

Ignoring the CEL warning light deserve to cause an ext problems under the road.

Also, store in mind that your fuel economic climate may be lower if your Dodge CEL/MIL irradiate is on, and also exhaust emission commonly increases.

Your Dodge inspect engine light have the right to come top top for various reasons. If it could be miscellaneous as straightforward as a loose gas cap, over 100 diagnostic trouble codes (DTC) can trigger the check eengine light deserve to come ~ above for miscellaneous reasons. If it might be something as an easy as a loosened gas cap, over 100 diagnostic problem codes (DTC) can cause the examine engine lightengine light.

Without reading the codes, it is difficult to understand what is wrong. Below you will uncover instructions on reading codes yourself or where you deserve to have them check out for free.


Symptoms you may notice when her Dodge inspect engine lightengine irradiate is on.

Reduced engine powerEngine shaking because of misfireReduced fuel economy

In part cases, you might not notice any symptoms except check the engine irradiate or organization engine shortly light top top the dashboard.

Most common Problems


Seven the the most common problems that can cause the examine engine light to come on a dodge engine light to come on a Dodge auto are:

A loosened gas lid or gas cap demands to be replaced.Intake vacuum leak

It is an overwhelming to understand why your Dodge examine engine irradiate is ~ above without reading the faengine irradiate is top top without analysis the error codes. 

What come do as soon as the Dodge check engine lightengine light comes on?

If her Dodge examine engine irradiate is on, in most cases, girlfriend can continue to run the car if there room no power issues and also the check engine irradiate is Nengine irradiate is on, in most cases, girlfriend can continue to operate the auto if there room no power issues and the inspect engine light is Nengine irradiate is not flashing.

 See the closestly mechanic or evade dealer if the inspect engine light isengine light is flashing. 

1. Monitor Dashboard Warnings

Check her dashboard warning lights and gauges. Make certain there space no warning lights for low oil pressure or engine overheating.

Drive with caution and continue come monitor exactly how the car is running. If the engine sounds different, the difficulty may be serious and also should it is in diagnosed immediately.

2. Examine Gas Cap

Check your gas cap to make sure it is top top tight. If you find that the gas cap was loose or removed, tighten it until you hear it click.

If you have a capless design, examine the flap for debris and also make sure it closes properly. 

After a couple of driving cycles, the irradiate will turn off ~ above its own because the ECU will keep on checking the EVAP system. 

It will take a few driving cycles because that the light to reset, and also in many cases, the light resets within two to 3 days.

3. Screen Engine Temperature

Next, you must monitor the engine temperature. If your inspect engine light come on since of one engine misfire, the engine might be walk engine light came on since of one engine misfire, the engine can be going to overheat.

If the engine go overheat, it can lead come a swollen head gasket, which have the right to be a i have lot of money repair, especially if your check engine irradiate is flashing engine light is flashing or blinking.

If the engine is overheating or the oil light is ON, you need to pull over and shut off the engine as shortly as possible.

4. Mitigate Speed and also Load

If your inspect engine light is on, reduce your speed and not unnecessarily pack on the engine. If you room towing a trainer, either alleviate the speed significantly or remoengine irradiate is on, reduce your speed and not unnecessarily fill on the engine. If you room towing a trainer, either minimize the speed considerably or eliminate the load.

5. Read Diagnostic problem Codes and Reset examine Engine LightEngine Light

Let"s look at exactly how you deserve to use an OBD-II scanner to check out codes related check engine codes.


Turn top top the ignition. The is not important to start the engine if her Dodge has actually a Start/Stop button. Push it twice without pressing the brake pedal to turn on the accessories and also the OBD-II port.Read dodge fault codes. Instructions on this step will vary depending on the scanner that you space using. For your convenience, we have provided videos on using miscellaneous OBD2 scanners to review codes and also clear the Dodge inspect engine lightengine light.

Clearing password without resolving the trouble that triggered the CEL does not settle the problem. Always resolve the trouble first, then clear the inspect engine lightengine light.

These instructions work on 1996 and newer evade vehicles such together Dodge grand Caravan, Stratus, Viper, Challenger, Charger, Avenger, Caliber, Dart, Magnum, Neon, Durango, and Journey.

How to read Dodge password without a scanner

For example, you deserve to retrieve the password without a scanner on a couple of Dodge vehicles such as Dodge Dakota and Grand Caravans.

Cycle the vital in the ignition 3 times. Turn key to ON, then OFF three times.Leave the crucial in the on position.Wait five seconds.

Dodge examine Engine light FlasEngine irradiate Flashes 10 Times

If you revolve the an essential to the ON place (or an essential in ACC position) but do not start the engine, friend may an alert the check engine irradiate flashes 10x times. This happens if yengine light flashes 10x times. This wake up if you recently disconnected the battery or used an OBD-II scanner to clear the codes.

It way that one or more of the emissions systems space not ready, recognized as the I/M readiness test.

All the equipment will it is in tested as you drive the vehicle, and the light typically stops blinking ~ a few driving cycles.

If her Dodge CEL flicker 10 times at startup, continue to drive your Dodge, and the light have to stop blinking within a couple of days. execute NOT journey if the car if the CEL proceeds to flash once the engine is running.

It is crucial to understand that if her Dodge check engine irradiate is flashing 10 times, and you take the automobile for an emission test, it will fail since at least one the the following systems iengine light is flashing 10 times, and also you take it the auto for an emission test, it will fail because at least one of the adhering to systems is not ready:

Fuel SystemCatalystHeated CatalystSecondary waiting SystemOxygen Sensor Sensor Heater

Even if your check engine light transforms off, however one or an ext of these equipment is not READY, your Dodge is not ready for emissiengine light turns off, yet one or more of these systems is no READY, your Dodge is not all set for emissions testing.

Once all the systems detailed above room tested by the onboard diagnostic system and the auto is all set for emission test, the examine engine light will certainly come on because that a few seconds then revolve off. It will not blink and also should not continue to be on when the engineengine light will certainly come on for a couple of seconds then turn off. It will certainly not blink and also should not stay on when the engine is running.

If friend think the light is flashing 9 or 11 times, counting it again. It must blink ten times.

When you contact your evade dealer or any kind of auto mechanic, you will certainly be inquiry to carry the vehicle for a diagnostic.

The factor is the they must plug in a scan tool to review the password from the ECU. This is a procedure that you deserve to perform if you have actually the appropriate tools.

For this checkup, evade dealers charge between $80 and $130. If your Dodge is quiet under warranty, her Dodge dealer will do diagnostic free of charge.

Also, keep in mind that a couple of Dodge dealerships might offer free check engine light engine light diagnostics.

Just reading the codes is the starting point. Her dealer will certainly make proposal on the components that have to be replaced based on the diagnostic results.

The main advantage of taking your automobile to the dealer is that the dealership"s scanner provides much more detailed info than the password that friend retrieve making use of a share OBD-II scanner.

The diagnostic fee charged at the dealership or the mechanic does not incorporate the cost to resolve it.

If you decide to have the car fixed at the same place that carry out the diagnostics, ask the manager come waive the diagnostic fee. In many cases, they will if girlfriend ask in advance.

Fault Codes

While hundreds of Diagnostic problem Codes (DTCs) are few of the most usual fault codes that many Dodge owners may experience.


This code indicates a very small leak in the EVAP system. A usual problem with Dodge van such together Dodge ram gasoline engine is a rotted hose for the EVAP system.

The hoses from the fuel tank to the engine have the right to crack end time. The trouble could additionally be the NVLD valve. Along with the P0456, you may likewise get P0440 or P0442. These room EVAP codes. If girlfriend have any kind of of these codes, inspect the gas cap as well.

P0456 & P0457

If the P0457 and P0457 codes come up and also your inspect engine light is on, the first you should do is to examine or also replace engine irradiate is on, the very first you must do is to examine or also replace the gas cap.


If the password remains, over there is a high chance that you have actually a defective leak detection pump. Your Dodge leak detection pump deserve to be accessed from underneath the car. It can be changed without removing the fuel tank.

P0306, P0303 or P0300

These codes typical that the Engine manage Unit has detected one engine misfire. Any kind of of the complying with can reason these codes:


Bad spark plugsDefective ignition coilFuel injector dirtyMass air flow sensorDamaged catalytic converterThese are simply a few of the troubles that can cause a cylinder misfire.

To determine the reason of P03XXX codes, you must perform further troubleshooting.


A defective EGR valve usually triggers this code. The EGR valve may have a bad solenoid or carbon blockage.

In many cases, the valve is replaced, which is a job that most DIYers have the right to tackle themselves.

While the is not required, the is recommended to disconnect the battery while replacing the EGR valve. Girlfriend can additionally clean the EGR valve, but no guarantee cleaning it will deal with the problem.


The P0562 code can be triggered if a low mechanism voltage is detected. In addition to the P0562 light, you may additionally get a red battery warning irradiate on the dashboard.

Newer evade vehicles may even go into a limp (fail-safe) mode when this password is present. Short voltage can be led to by a negative alternator or voltage regulator. The can likewise be caused by negative ground connection, corroded battery terminals, or a battery that has a bad cell.

If you review the codes and also your Dodge has actually code P0562, resolve the problem as soon as possible. If ignored, you may experience other difficulties such as the engine refusing to start, poor fuel economy, or infection not shifting out the Park and into Drive.


If her Dodge check engine light is on and also you gain code P0404, it meanengine light is on and also you acquire code P0404, it way that your Dodge Exhaust Gas Recirculation (EGR) valve is operation out that range.

The EGR valve aims to recirculate exhaust gases and also send them ago into the engine to lower the NOx emissions.

A brand-new Dodge EGR Valve prices anywhere indigenous $50 come $200 and also is changed at the dealer ~ above average. You will certainly pay between $300 and $550.

The EGR is an installed on her Dodge engine close to the exhaust. In many Dodge vehicles, the is relatively easy come replace.

This is a task that most DIYers have the right to perform in your driveway as long as you have actually the correct tools.

Keep in mind the the EGR valve itself may not always be the problem. The problem could also be the signal native the EGR valve come the engine ECU.

This code has similar symptoms come a vacuum leak together well. Make certain to check the solenoid operation and wiring as well. You have to perform a continuity test on the wire harness to ensure the cable harness come the EGR is no defective.

Some that the most typical symptoms the the P0404 on evade vehicles incorporate engine dice at idle, engine stalling, or rough idle. This is a common problem on dodge trucks such as Rams, where in enhancement to the P0404 code, girlfriend may also get the P0406 code.


A P0720 password is a generic transmission code. The code suggests that there is a failure of the output shaft sensor. The problem might be the sensor chin or the wire harness.

Common symptoms include delayed shifting and the check engine irradiate on. In some cases, a evade P0720 can also be led to by a defective transmission fluid temperaengine light on. In part cases, a evade P0720 can likewise be resulted in by a defective transmission liquid temperature sensor.

The sensor is placed on the next of the transmission towards the end. Note that the output rate sensor is additionally used together the input speed sensor on details Dodge transmissions.

Check the existing price top top the Dodge output rate sensor.


If your check engine light is on and also you acquire the P0420 code, it way that the catalytic converter functions belowengine light is on and also you gain the P0420 code, it means that the catalytic converter works below efficiency.

In many cases, the catalytic converter is the culprit, however the trouble could additionally be one oxygen sensor not working prosensor not functioning properly.

One symptom of gift a negative catalytic converter is that the car may battle to accelerate as soon as you press the gas pedal. When this password is present, the fuel economy decreases.

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This code method the evaporative emission control system has actually incorrect purge flow. A P0441 password on evade vehicles is frequently triggered by either a faulty purge regulate valve, purge solenoid, or damaged solenoid wires. This problem can be resulted in by constraints on the EVAP mechanism or a negative vacuum switch.