Guide To P2044 OBD Error Code Solutions

<<See All OBD Codes

See the error code P2044 flashing? Can’t comprehend the big words? Don’t worry, Parts Avatar to the rescue! Here’s we have written down all that you need to know about the error code P2044. One can observe that the reductant heater and sender assembly consist of the pickup tube for reductant pump module, an electric heating element, a reductant temperature sensor and an electrode type level sensor. The heating element can be situated above the pickup tubes inlet filter. Also, the reductant temperature sensor performs the duty of detecting the diesel exhaust fluid temperature. When it drops to the freezing point of 12°F (-11°C), the PCM orders the glow plug control module to offer voltage to heating element. Further, the liquid reductant is melted by the heating element within the reductant heater and sender assembly reservoir during cold temperatures.

It is notable that the exhaust gas recirculation (EGR) systems proceed further in the process of reducing the NOx. Although, modern day’ larger and powerful diesel engines often fail to meet strict federal (U.S) emission standards with the EGR, diesel particulate filter/catalytic converter, and NOx trap alone. Thus, this become the reason behind the invention of the selective catalytic reduction (SCR) systems.

What causes this problem with the Reductant Temperature Sensor Circuit Low?

• A malfunctioning reductant temperature sensor
• Corroded or loose reductant temperature sensor harness
• Deficient electrical connection in the reductant temperature sensor circuit

1. Reductant pump module - Fearing an error code P2044? Don’t know what all problems it can cause? Well, a malfunctioning reductant pump module is likely to trigger problems with the overall engine performance of the system. Tune into Parts Avatar to get your hands on your new reductant pump module.
2. Exhaust gas temperature sensor - Observing an engine ping or knock? Yes, it is happening due to a defective exhaust gas temperature sensor. Log into Parts Avatar to get your defective one repaired or replaced now!
3. Reductant heater - Are there any open or shorted circuits in the reductant heater? Then it is likely caused due to your faulty reductant heater. Visit us today to grab amazing deals on premium quality auto parts.
4. Diesel exhaust fluid pump - If is there is a damaged diesel exhaust fluid pump, then it may throw off the timing and fuel settings of the engine, which therefore negatively affect’ the overall performance. Tune into Parts Avatar to get your hands on your new diesel exhaust fluid pump now!
5. Powertrain control module - Do you know that the poor performance or unexplained drops in fuel economy or efficiency are often linked to problems related to the powertrain control module? Mend or restore yours now instantly.

Our main motive is to achieve customer satisfaction and that’s why we will help you to diagnose P2044 code by mentioning some major symptoms below:

Common Symptoms

• An illuminated dash check engine light (or service engine soon warning light)
• Also, apart from excessive black smoke emissions during acceleration, the driver may fail to notice any obvious codes other than an illuminated service engine soon lamp and a stored trouble code

Have a look at some ways with which you can correct the P2044 code:

• Repair or replace your damaged reductant temperature sensor
• A visual inspection should be performed of all the harness and wires in the reductant temperature sensor. Make sure you perform repairs to fix malfunctioning ones
• Amendments should be performed to fix a bad electrical connection running in the reductant temperature sensor circuit

Don’t get tensed if you are still facing any of these issues as we care for our customers and that’s why we offer a good range of pcm,temperature sensor,diesel exhaust fluid,reductant heater and a lot more. We are sure that now all your issues would be resolved.

Here are some steps which you should follow in order to diagnose this fault code:

First and foremost, to perform an accurate diagnosis, you will need a diagnostic scanner, a digital volt/ohmmeter (DVOM), and a source of vehicle specific diagnostic information. Next, you should try to search your source of vehicle information to locate a technical service bulletin (TSB) that parallels the vehicle year, make/ model as well as the engine size, code/s stored, and symptoms exhibited. And, if you are successful in finding one, it could yield helpful diagnostic information. The scanner should be employed (linked to the vehicle diagnostic connector) to restore all stored codes and relevant freeze frame data. We advise you to record all this information down before the codes are cleared. Perform a test-drive of the vehicle until the PCM either enters readiness mode or the code returns.

If in case, you notice the PCM entering the readiness mode at this time, the code stored is an intermittent one and may be much more challenging to diagnose. Also, the conditions that might have added to the code being stored may need to worsen before a precise diagnosis can actually be made. On the other hand, if the code resets immediately, the next step of the diagnosis would require you to search your vehicle information source for diagnostic flow-charts, connector pin-out charts, connector face views, and component testing procedures/specifications. Further, these steps should be performed to overcome the problems completely:

STEP 1

The DVOM should be used to test the reductant temperature sensor in accordance with the manufacturer specifications. It should be noted that the electrical components that fail to fall within maximum allowable parameters should be considered damaged.

STEP 2

Now, if in case, the actual reductant temperature is within the required specifications, and still the code P2044 returns and the sensor is functioning in order, the DVOM should be used to test the input and output signal circuits between the temperature sensor and the PCM/SCR controller. All the controllers should be de-linked before using the DVOM for testing. Generally, the reductant temperature sensor codes are usually stored due to a malfunctioning or disconnected sensor.

Common Mistakes When Diagnosing the P2044 Code

Here we have listed a few common mistakes that should be avoided while diagnosing the error code P2044:

Often, the technicians commit the mistake of changing the oxygen sensor instead of the exhaust temperature/pressure sensor. It is essential that the right sensor is located for the diagnostic and replacement purpose. All the functions of a damaged system should be tested to ensure that there are no further problems.