P204E Code - Reductant Pressure Sensor Circuit Intermittent/Erratic
Quick Answer
The P204E diagnostic trouble code (DTC) indicates that there is an intermittent or erratic signal coming from the reductant pressure sensor circuit. Common causes include Damaged wiring harness, Faulty reductant pressure sensor, Poor electrical connections. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P204E indicates Reductant Pressure Sensor Circuit Intermittent/Erratic.
- Common causes
- Common causes include Damaged wiring harness, Faulty reductant pressure sensor, Poor electrical connections.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code P204E Description
The P204E diagnostic trouble code (DTC) indicates that there is an intermittent or erratic signal coming from the reductant pressure sensor circuit. This sensor is a critical component of the vehicle's emissions control system, specifically in vehicles equipped with Selective Catalytic Reduction (SCR) systems. The reductant pressure sensor is responsible for monitoring the pressure of the diesel exhaust fluid (DEF) in the SCR system, which is used to reduce harmful emissions.
Common Causes of P204E
- Damaged wiring harness
- Faulty reductant pressure sensor
- Poor electrical connections
- Issues with the SCR system
- Corrosion or contamination in the sensor circuit
Symptoms of P204E
- Check engine light illuminated
- Decreased fuel efficiency
- Engine hesitation or rough idling
- Failed emissions test
- Reduced engine performance
How to Fix P204E
- Diagnose the issue using a diagnostic scan tool to pinpoint the exact cause of the intermittent/erratic signal.
- Inspect the wiring harness for any damage or corrosion and repair or replace as needed.
- Test the reductant pressure sensor for proper function and replace if faulty.
- Check and clean electrical connections to ensure a secure and reliable connection.
- Verify the operation of the SCR system to ensure proper functionality.
Cost to Fix P204E
The cost of repairing a P204E code can vary depending on the specific cause of the issue and the make and model of the vehicle. On average, the cost of parts for this repair could range from $100 to $300, with labor costs adding an additional $100 to $200. Overall, the total repair cost for addressing a reductant pressure sensor circuit intermittent/erratic issue could range from $200 to $500. It is advisable to consult with a qualified mechanic or auto repair shop to get an accurate estimate based on the specific circumstances of your vehicle. Additionally, labor rates at auto repair shops can vary, with factors such as location and shop reputation influencing the final cost.
Need more information about the P204E code?
Need more information on how to fix the P204E code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P204E code diagnosed by a professional: Find a repair shop in your area
Code P204E 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
Frequently Asked Questions about P204E Code
No Frequently Asked Questions about P204E Code found.
Discuss the causes and fixes for P204E OBDII Code
Code P204E comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.