Many Ford drivers may have heard of the Ford Code P20BA but may be unfamiliar with what it means and how it relates to the Ford powertrain control module (PCM). The code P20BA indicates that the glow plug system during the key ON, engine running (KOER) self-test, the glow plug system is out of tolerance with an expected threshold. This is because the GPCM detects that the reductant heater conductance is out of tolerance with this threshold, and it sends a message to the PCM, which sets this DTC. To help you understand Ford Code P20BA better, we have created a table below that outlines some of the causes and solutions regarding this code.
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Causes and Solutions of Ford Code P20BA
| Causes | Solutions |
|---|---|
| Powertrain Control Module (PCM) is malfunctioning | Replace the PCM |
| The Glow Plug Control Module (GPCM) has failed | Replace the GPCM |
| The Reductant Heater has a short circuit | Replace the reductant heater |
| The Reductant Heater is malfunctioning | Replace the reductant heater |
Ford Code P20BA is a code specific to Ford models and related to the powertrain control module (PCM). It is triggered when the glow plug system during the key ON, engine running (KOER) self-test for the glow plug system is out of tolerance with an expected threshold. This is because the GPCM detects that the reductant heater conductance is out of tolerance with this threshold, and it sends a message to the PCM, which sets this DTC. To better understand this code and its potential causes and solutions, it is important to understand its components. The PCM enables the glow plug control module (GPCM), which monitors the conductance of each reductant heater during peak power and compares it to an expected threshold. When the GPCM detects that the reductant heater conductance is out of tolerance with this threshold, it sends a message to the PCM, which sets this DTC. If this happens, then the causes of the code P20BA could be a malfunctioning powertrain control module (PCM), a failed glow plug control module (GPCM), a short circuit in the reductant heater, or a malfunctioning reductant heater. The solutions to these causes would be replacing the PCM, GPCM, or reductant heater.
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Conclusion
Ford Code P20BA is a code specific to Ford models and related to the powertrain control module (PCM). The code can be triggered when the glow plug system during the key ON, engine running (KOER) self-test for the glow plug system is out of tolerance with an expected threshold. The potential causes of Ford Code P20BA are a malfunctioning powertrain control module (PCM), a failed glow plug control module (GPCM), a short circuit in the reductant heater, or a malfunctioning reductant heater. The solutions to these causes would be replacing the PCM, GPCM, or reductant heater. In conclusion, it is important to be aware of Ford Code P20BA and its causes and solutions to properly diagnose and repair your Ford vehicle.
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