Engine-Codes.com
Engine-Codes – GMC – P208A GMC

P208A GMC Code - Reductant Pump Control Circuit

Quick Answer

The P208A diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the reductant pump control circuit. Common causes include Faulty reductant pump, Wiring issues or electrical connections related to the reductant pump control circuit, Defective reductant pump control module. 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
P208A GMC indicates Reductant Pump Control Circuit.
Common causes
Common causes include Faulty reductant pump, Wiring issues or electrical connections related to the reductant pump control circuit, Defective reductant pump control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 09, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P208A GMC Description

The P208A diagnostic trouble code (DTC) for GMC vehicles refers to an issue with the reductant pump control circuit. The reductant pump is a crucial component of the Selective Catalytic Reduction (SCR) system, which helps reduce harmful emissions in diesel engines. The reductant pump is responsible for supplying the Diesel Exhaust Fluid (DEF) to the SCR system, where it reacts with the exhaust gases to convert harmful nitrogen oxides into harmless nitrogen and water vapor.

OBDII Code P208A GMC - Reductant Pump Control Circuit
P208A GMC Code - Reductant Pump Control Circuit

Common Causes of P208A GMC

  1. Faulty reductant pump
  2. Wiring issues or electrical connections related to the reductant pump control circuit
  3. Defective reductant pump control module
  4. Corrosion or damage to the reductant pump components
  5. Software or programming issues related to the reductant pump control system

Symptoms of P208A GMC

  1. Check engine light illuminated
  2. Reduced fuel efficiency
  3. Difficulty starting the engine
  4. Rough idling or engine misfires
  5. Increased emissions

How to Fix P208A GMC

  1. Diagnose the issue using a diagnostic scan tool to confirm the P208A code and pinpoint the exact cause of the problem.
  2. Inspect the reductant pump, wiring, and connections for any visible damage or corrosion. Replace any faulty components as needed.
  3. Test the reductant pump control module to ensure it is functioning correctly. Replace if necessary.
  4. Clear the DTC from the vehicle's memory and reset the check engine light.
  5. Test drive the vehicle to ensure the issue has been resolved and that the emissions system is functioning properly.

Cost to Fix P208A GMC

The cost of repairing a reductant pump control circuit issue can vary depending on the extent of the problem and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $200 to $500, while labor costs can add an additional $100 to $300. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your vehicle make and model.

Need more information about the P208A GMC code?

Need more information on how to fix the P208A GMC code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P208A GMC code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P208A GMC Code

1. What are common symptoms of OBDII code P208A GMC related to the Reductant Pump Control Circuit?

- Common symptoms include the Check Engine Light coming on, decreased fuel efficiency, and potential failure to pass emissions testing.

2. What are some possible causes of OBDII code P208A GMC?

- Possible causes include a faulty reductant pump, damaged wiring or connectors in the control circuit, or a malfunctioning reductant heater.

3. How can I diagnose the issue causing OBDII code P208A GMC?

- Diagnosis typically involves using a scan tool to check for the specific error code, inspecting the reductant pump and related components, and testing the wiring and connectors for continuity.

4. Can I continue driving with OBDII code P208A GMC active?

- It is generally not recommended to continue driving with this code active, as it can lead to increased emissions and potential damage to the vehicle's emissions control system.

5. How can I repair OBDII code P208A GMC related to the Reductant Pump Control Circuit?

- Repair typically involves replacing the faulty reductant pump, repairing or replacing damaged wiring or connectors, and ensuring proper functioning of the reductant heater.

6. Are there any preventive maintenance tips to avoid OBDII code P208A GMC in the future?

- Regularly inspecting and maintaining the reductant pump, wiring, and connectors can help prevent issues that lead to this code. Also, using high-quality diesel exhaust fluid (DEF) can help maintain proper reductant system function.

7. Is it possible to reset OBDII code P208A GMC without making any repairs?

- While clearing the code may temporarily turn off the Check Engine Light, it is not recommended to reset the code without addressing the underlying issue, as it may lead to continued problems and emissions non-compliance.

8. Can a DIY enthusiast repair OBDII code P208A GMC at home?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code at home. However, dealing with emissions control systems can be complex, so professional assistance is often recommended.

9. How long does it typically take to repair OBDII code P208A GMC at a mechanic's shop?

- The repair time can vary based on the exact cause of the code and the shop's workload. In general, it may take a few hours to a full day to diagnose and repair the issue related to the Reductant Pump Control Circuit.

10. Will OBDII code P208A GMC cause any long-term damage if left unaddressed?

- Ignoring this code can lead to increased emissions, reduced fuel efficiency, and potential damage to the vehicle's emissions control system over time. It is advisable to address the issue promptly to prevent further complications.

Discuss the causes and fixes for P208A GMC OBDII Code

Submit a New Comment

Code P208A GMC comments

No comments found for this page.