What does code P203B mean?
Learn More About OBD Error Code P203B. This code is set when the Engine Control Module gets an unacceptable signal from the reductant level sensor. The leftover exhaust particles in your vehicle get converted into harmless gases. This happens with the assistance of the Diesel Exhaust Fluid (DEF).
What is a reductant level sensor?
The Reductant Level Sensor tells the engine computer (PCM) how much DEF is left in the tank. If the PCM detects an implausible signal from the Reductant Level Sensor, code P203D is set. This sensor is usually built into the Reductant Tank.
How do I fix code P203F?
How To Correct P203F Reductant Level Too Low
- Repair or replace the DEF.
- Repair or replace DEF sensor.
- Repair or replace Fuel filler neck.
- Repair or replace ECM.
- Repair or replace ECU.
- Repair or replace discrete level sensor.
What does code P20BA mean?
Reductant Heater “A” Control Circuit Performance
Diagnostic trouble code (DTC) P20BA stands for “Reductant Heater “A” Control Circuit Performance.” This trouble code sets when the powertrain control module (PCM) has detected that the voltage signal from the control circuit of the designated reductant heater “A” is out of the expected range.
What does code P20B9 mean?
Diagnostic trouble code (DTC) P20B9 stands for “Reductant Heater “A” Control Circuit/Open.” This code sets when the reductant heater doesn’t perform as expected. The P20B9 engine code can also be triggered if the powertrain control module (PCM) doesn’t detect voltage in the reductant heater A’s control circuit.
What is reductant level too low?
The Reductant Level Sensor tells the engine computer (PCM) how much DEF is left in the tank. If the PCM sees that the DEF level is too low, code P203F is set. Additional warnings may be present on the instrument cluster. Failure to add DEF fluid may result in the engine not restarting until more DEF fluid is added.
What is a reductant tank heater?
OBD-II Code P202B is defined as a Reductant Tank Heater Control Circuit Low. Newer diesel vehicles have a Diesel Particulate Filter to reduce soot emissions. This filter uses DEF Fluid to assist in the burning off soot. The Reductant Tank Heater heats the DEF Fluid to the temperature is more efficient.
How do I fix my P20B9 code?
How To Correct P20B9 Reductant Heater A Control Circuit/Open
- Changing the broken reductant heater ‘A’ control circuit.
- The opening or the shorted circuit of the reductant heater ‘A’ control must be quickly fixed.
- Quickly replacing the dirty diesel exhaust fluid.
- Replacing the broken glow plugs.
What is a reductant heater a control performance?
The reductant heater is a component that is used to prevent diesel exhaust fluid from freezing or crystallizing in low temperatures. It is usually located in the diesel exhaust fluid filter reservoir and/or the reductant injector supply hose(s).
Is Blue DEF cow urine?
Diesel exhaust fluid sold in stores and at semi-truck pumps at truck stops in the U.S. does not contain urea derived from cows, bats, or any other animal’s urine, and to be clear, diesel owners should under no circumstances urinate in their DEF tanks.
What does a reductant tank do?
The Reductant Temperature Sensor tells the engine computer (PCM) the temperature of the DEF in the tank.
How important is a DEF heater?
DEF Heating Pots are designed to quickly return DEF to liquid form, ensuring proper flow through the lines and pump unit. If your diesel vehicle is operating in limp mode, or is not operating at full power, a common culprit is a failed DEF heating element.
Where is def heater located?
DEF Dosing Line Heater – A DEF dosing line heater is located at the end of the DEF dosing line where it meets the DEF pump. This heater is used to heat the dosing line between the DEF pump and the DEF dosing valve to prevent freezing during vehicle operation.
Can you pee in DEF tank?
The urea found in urine is not in the proper concentration needed for DEF, nor is it of a sufficient level of purity, in either urea or water. The bottom line, to spell it out just one more time… urine and DEF = Never. DON’T PEE IN YOUR DEF TANK!