Error Code P246F: What It Means & What To Do?

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Error code P246F? Don’t worry, Parts Avatar to the rescue! All you need is this brief guide by Parts Avatar to solve the error code P246F. The exhaust gas temperature sensor circuit range/performance is also known as the OBD-II code powertrain control module (PCM) failure. One can observe that the the diesel exhaust fluid (DEF) helps greatly while converting the leftover exhaust particles to harmless gases. Therefore, to burn off those particles, an increased temperature is required in the exhaust system. The injection of DEF Fluid when put into the exhaust stream elevates the diesel particulate filter (DPF) up to temperature. Only then the system is able to perform the task of converting the toxic NOx to nitrogen, carbon dioxide and water. To completely finish the NOx present in the exhaust stream, the reductant catalyst (SRC) is added. Further, the exhaust gas temperature performs the function of informing the engine control (ECM) about the exhaust gas going in and out of the selective catalytic reduction (SRC). The code P246F is stored as soon as an impractical signal is detected by the powertrain control module.

It is notable that the task of controlling the exhaust gas temperature sensor (EGTS) for the right circuit continuity and out of range high values is undertaken by the powertrain control module (PCM). One can find the EGTS located in front of the diesel oxidation catalyst (DOC) and/or in front of the diesel particulate filter (DPF). The EGTS identifies the exhaust gas temperature and alters it into a voltage. This is provided back to the PCM with the voltage signal in order monitor the engine conditions to efficiently reduce the emissions. When the EGTS fails to conform to the factory specifications, the powertrain control module sets the OBD-II code P246F.

What causes this problem with the Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 4?

• A defect in the exhaust gas temperature sensor (EGTS) bank 1 sensor 4
• The harness in the exhaust gas temperature sensor bank 1 sensor 4 is open or short circuited
• A bad electrical connection in the exhaust gas temperature sensor bank 1 sensor 4 circuit
• Leakages in the exhaust
• Particulate matter collected on sensor

1. Powertrain Control Module - Check engine light illuminated? Stressed? A whole lot of problems like a no-start condition and car stalling (even while driving) follow a malfunctioning powertrain control module. Log into Parts Avatar for your new PCM now!
2. Exhaust Gas Temperature Sensor - This is an essential unit, if defective should be changed right away as it brings along a lot of problems including difficulties in starting the vehicle, erratic idle and a misfiring condition too. Now get your new exhaust gas temperature sensor delivered easily with Parts Avatar. Tune in now!
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4. Diesel Oxidation Catalyst - Having problems with the diesel oxidation catalyst? Don’t you worry, Parts Avatar has it all. A fault could end up being the root cause behind the error code P246F.
5. Diesel Particulate Filter - If you start experiencing engine misfires, stalling, or rough idling when the car is stopped, it should be taken as a sign of a faulty diesel particulate filter. Now get your error code P246F fixed with us at Parts Avatar. So? What are you thinking? We are just a click away!
6. Automatic Transmission Cooler - A jammed or deficient automatic transmission cooler is dangerous for the automatic transmission system parts as it directly affects the overall performance of the sensor. Tune into Parts Avatar to get your automatic transmission cooler at budget friendly prices.

It is vital to know the symptoms of an issue as only then you would be able to solve the problem. So that’s why we have listed out some major symptoms of OBD code P246F here:

Common Symptoms

• One may observe an illuminated check engine light (or service engine warning light)

Want to correct the trouble code P246F? Read these points mentioned below:

• Replace or repair your defective exhaust gas temperature sensor (EGTS) bank 1 sensor 4
• The harness in the exhaust gas temperature sensor bank 1 sensor 4 if open or short circuited should be changed or mended
• Amendments should be performed to fix bad electrical connection in the exhaust gas temperature sensor bank 1 sensor 4 circuit
• Clean the excessive particulate matter buildup on the sensor
• Fix all the exhaust leakages present throughout the system

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It is essential to diagnose this fault code. Here are some steps which a mechanic should follow for diagnosing the problem that triggered a P246F code to be stored:

If you observe white smoke emitting out, it signals that the fuel that is being injected into the combustion chamber is improperly burnt. Also, one of the most general causes that lead to the generation of white smoke extents from something as basic as low engine compression or water in the fuel to the fuel pump timing being thrown off due to something blocking the fuel from getting to the pump in the manner required for the pump to time and work according to the specifications. Well, note that, replacements or repairs shouldn't be just performed according to the P246F DTC. It is essential to refer to the service manual for possible causes of the fault along with the required testings. Get a hydraulic pressure diagram referring to that specific vehicle. Connect the end of the gauge into the appropriate opening on the transmission housing to register the pressure in the pump. In case if either the reference voltage or ground circuits are disconnected, the digital volt/ohmmeter should be used to check for continuity (disconnect all related control modules from the circuit before checking circuit resistance or controller damage may occur) and resistance in all circuits. An electronically controlled valve in the automatic transmission cooler lines is utilized by numerous vehicle applications to manage the flow of fluid to the cooler itself. An intermittent condition should be suspected, if the code fails to return immediately.

Common Mistakes When Diagnosing the P246F Code

Here we have listed a few common mistakes that should be avoided while diagnosing the error code 246F:

• A malfunctioning exhaust gas temperature (EGT) sensor
• A defective powertrain control module (PCM)
• Concerns related to the wiring