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AutoCodes - Generic - P204E

P204E Code - Reductant Pressure Sensor Circuit Intermittent/Erratic

- Code Popularity: 6,941 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P204E?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Reductant Pressure Sensor
  • Reductant Pressure Sensor harness is open or shorted
  • Reductant Pressure Sensor circuit poor electrical connection
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How to Fix the DTC P204E?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P204E code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P204E Description

The Reductant Pressure Sensor, located in the Reductant Pump and Sensor Assembly, responds to pressure changes in the reductant system. The Reductant Control Module supplies 5 V to the reductant pressure sensor on the 5 V reference circuit and provides a ground on the low reference circuit. The reductant pressure sensor provides a signal to the Reductant Control Module on the sensor signal circuit relative to the pressure changes in the reductant system. The Engine Control Module (ECM) is
connected to the Reductant Control Module via the Controller Area Network (CAN) bus. The Diagnostic Trouble Code (DTC) will be set when the ECM detects that the reductant pressure sensor signal is open or shorted to ground.

OBDII Code P204E - Reductant Pressure Sensor Circuit Intermittent/Erratic - AutoCodes.com
P204E Code - Reductant Pressure Sensor Circuit Intermittent/Erratic

Need More Information on the Code?

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Information for Specific Makes

  • P204E Chevrolet Reductant Pressure Sensor Circuit Intermittent/Erratic
  • P204E Dodge Reductant Pressure Sensor Circuit Intermittent/Erratic
  • P204E Ford Reductant Pressure Sensor Circuit Intermittent/Erratic
  • P204E GMC Reductant Pressure Sensor Circuit Intermittent/Erratic

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