Where is the p20bd code located on a reductant heater?
Where is the p20bd code located on a reductant heater?
These heaters are typically located in the DEF reservoir and/or the reductant injector supply hose/s. If the PCM detects no voltage on the control circuit for reductant heater B, a code P20BD will be stored and a malfunction indicator lamp may be illuminated.
How to test the reductant heater control circuit?
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. If voltage is insufficient, suspect that the controller is bad or has experienced a programming error.
Where are reductant heaters located in the Def reservoir?
Reductant heaters are used to prevent diesel exhaust fluid from freezing during extreme temperatures. These heaters are typically located in the DEF reservoir and/or the reductant injector supply hose/s. If the PCM detects no voltage on the control circuit for reductant heater B, a code P20BD will be stored…
What’s the difference between catalyst and reductant heater?
This designation is used where multiple reductant heaters are in use, consult a vehicle specific repair manual to determine which is the A circuit for your application. The catalyst system is responsible for reduction of (basically) all the other exhaust emissions although certain applications are also equipped with a NOx trap.
What is the reductant heater control system used for?
The reductant heater control system is used by the Powertrain Control Module (PCM) to heat up the Diesel Exhaust Fluid (DEF) to prevent it from freezing.
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?…
Where are the reductant heaters located in a diesel engine?
Reductant heaters are used to prevent diesel exhaust fluid from freezing during extreme temperatures. These heaters are typically located in the DEF reservoir and/or the reductant injector supply hose/s.
This designation is used where multiple reductant heaters are in use, consult a vehicle specific repair manual to determine which is the A circuit for your application. The catalyst system is responsible for reduction of (basically) all the other exhaust emissions although certain applications are also equipped with a NOx trap.
