What is the code for a reductant tank heater?
Most owners will first find their reductant tank heater is out of specification by a check engine light. By using a code reader the most common code is P20B9, DEF reservoir heater control open circuit/low voltage. The most common repair for the P20B9 code is either replacing or manually engaging the reductant tank heater.
How to check a reductant heater control circuit?
Start by checking the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins. The cost to diagnose the P20BD code is 1.0 hour of labor.
Where is the reductant heater located in a diesel engine?
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).
What does DTC stand for on reductant heater?
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.
How to test a reductant heater control circuit?
Use the DVOM to test the power supply to the SCR control system/. Test fuses with the circuit loaded to avoid misdiagnosis. If the appropriate power (battery voltage) and ground circuits are discovered, use the scanner to activate the reductant heater/s and test output control circuit voltage.
How to find out if my p20ba reductant heater needs to be replaced?
How can I find out about this without being at the mercy of a dealership Thanks Stuart… Ford dealership says that the Diesel Exhaust pump sending unit on a 2015 F350 6.7 diesel needs to be replaced for a P20BA engine light code ; does that make sense to anyone?…
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.
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).