P1056 Dodge Code - Reductant Pump Low Speed
Quick Answer
The P1056 diagnostic trouble code (DTC) for Dodge vehicles refers to a potential issue with the Reductant Pump Low Speed. Common causes include Faulty Reductant Pump: A failing or malfunctioning reductant pump can trigger the P1056 code, Malfunctioning Reductant Pump Control Module: Issues with the control module that regulates the reductant pump's speed can also lead to this code, Wiring Issues: Damaged or corroded wiring connections related to the reductant pump system can cause communication errors and trigger the code. 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
- P1056 Dodge indicates Reductant Pump Low Speed.
- Common causes
- Common causes include Faulty Reductant Pump: A failing or malfunctioning reductant pump can trigger the P1056 code, Malfunctioning Reductant Pump Control Module: Issues with the control module that regulates the reductant pump's speed can also lead to this code, Wiring Issues: Damaged or corroded wiring connections related to the reductant pump system can cause communication errors and trigger the code.
- 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.
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Code P1056 Dodge Description
The P1056 diagnostic trouble code (DTC) for Dodge vehicles refers to a potential issue with the Reductant Pump Low Speed. This code indicates that the vehicle's reductant pump, which is responsible for delivering the diesel exhaust fluid (DEF) to the selective catalytic reduction (SCR) system, is operating at a lower speed than expected. The reductant pump plays a crucial role in reducing harmful emissions by injecting DEF into the exhaust stream, where it reacts with the exhaust gases to convert harmful nitrogen oxides into harmless nitrogen and water vapor.
Common Causes of P1056 Dodge
- Faulty Reductant Pump: A failing or malfunctioning reductant pump can trigger the P1056 code.
- Malfunctioning Reductant Pump Control Module: Issues with the control module that regulates the reductant pump's speed can also lead to this code.
- Wiring Issues: Damaged or corroded wiring connections related to the reductant pump system can cause communication errors and trigger the code.
- Clogged DEF Filter: A clogged diesel exhaust fluid (DEF) filter can restrict the flow of DEF to the SCR system, leading to a low-speed condition of the reductant pump.
Symptoms of P1056 Dodge
- Illuminated Check Engine Light: The most common symptom associated with the P1056 code is the illumination of the Check Engine Light on the vehicle's dashboard.
- Reduced Engine Power: The vehicle may experience a decrease in engine power or performance, especially during acceleration.
- Poor Fuel Efficiency: A malfunctioning reductant pump can lead to decreased fuel efficiency, as the SCR system may not be operating efficiently.
- Increased Emissions: The vehicle may emit higher levels of harmful emissions, which can contribute to air pollution.
How to Fix P1056 Dodge
- Diagnose the Issue: Use a diagnostic scan tool to retrieve the specific DTC and pinpoint the underlying cause of the Reductant Pump Low Speed code.
- Inspect the Reductant Pump: Check the condition of the reductant pump for any signs of damage or malfunction. Replace the pump if necessary.
- Check the Reductant Pump Control Module: Test the control module to ensure it is functioning correctly. Replace the module if it is faulty.
- Inspect Wiring Connections: Check the wiring connections related to the reductant pump system for any damage or corrosion. Repair or replace any faulty connections.
- Clear Codes and Test Drive: After completing the repairs, clear the DTCs from the vehicle's memory and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P1056 Dodge
The typical repair costs for addressing a P1056 DTC related to the Reductant Pump Low Speed can range from $200 to $800, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that the actual cost can vary based on factors such as the vehicle make and model, the location of the repair shop, and the extent of the repairs needed. Additionally, diagnosis time and labor rates at auto repair shops can vary, with hourly rates typically ranging between $80 and $150. It's recommended to obtain a detailed estimate from a trusted mechanic or dealership to get an accurate cost assessment for addressing this issue.
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