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P127D Chrysler Code - Fuel Pump Control Circuit 2 High

Quick Answer

The P127D diagnostic trouble code (DTC) specifically relates to the Fuel Pump Control Circuit 2 High in Chrysler vehicles. Common causes include Faulty fuel pump control module, Short or open circuit in the wiring, Defective fuel pump relay. 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
P127D Chrysler indicates Fuel Pump Control Circuit 2 High.
Common causes
Common causes include Faulty fuel pump control module, Short or open circuit in the wiring, Defective fuel pump relay.
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 10, 2024
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Code P127D Chrysler Description

The P127D diagnostic trouble code (DTC) specifically relates to the Fuel Pump Control Circuit 2 High in Chrysler vehicles. This code indicates that there is a high voltage condition detected in the fuel pump control circuit 2. The fuel pump control circuit is responsible for regulating the fuel pump's operation, ensuring the correct amount of fuel is delivered to the engine for combustion.

OBDII Code P127D Chrysler - Fuel Pump Control Circuit 2 High
P127D Chrysler Code - Fuel Pump Control Circuit 2 High

Common Causes of P127D Chrysler

  1. Faulty fuel pump control module
  2. Short or open circuit in the wiring
  3. Defective fuel pump relay
  4. Malfunctioning fuel pump
  5. Electrical issues in the fuel pump control circuit

Symptoms of P127D Chrysler

  1. Engine misfires or stalling
  2. Decreased fuel efficiency
  3. Rough idling or hesitation during acceleration
  4. Check Engine Light illuminated
  5. Difficulty starting the engine

How to Fix P127D Chrysler

  1. Begin by conducting a thorough diagnostic scan to confirm the P127D code and identify the specific cause of the high voltage condition.
  2. Inspect the fuel pump control module, wiring, relay, and fuel pump for any signs of damage or malfunction.
  3. Test the fuel pump control module and relay using a multimeter to check for proper voltage and continuity.
  4. Replace any faulty components, such as the fuel pump control module, wiring, relay, or fuel pump, as needed.
  5. Clear the DTC and reset the vehicle's onboard computer to ensure the issue has been resolved.

Cost to Fix P127D Chrysler

The cost of repairing the Fuel Pump Control Circuit 2 High issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, the repair cost for this issue can range from $200 to $500, including parts and labor. It's essential to consider that diagnostic time and labor rates at auto repair shops can vary, so it's advisable to inquire about local rates for a more accurate estimate. Additionally, the rates may be higher at dealerships or in metropolitan areas, while independent shops may offer more affordable prices.

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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 P127D Chrysler Code

1. What are the common symptoms of OBDII code P127D in a Chrysler related to the Fuel Pump Control Circuit 2 High?

Symptoms may include rough idling, engine stalling, poor fuel efficiency, and the illumination of the check engine light.

2. What are the possible causes of OBDII code P127D in a Chrysler?

Possible causes include a faulty fuel pump, issues with the fuel pump control module, wiring or connector problems, or a malfunctioning powertrain control module (PCM).

3. How can I diagnose the cause of OBDII code P127D in my Chrysler?

Diagnosis typically involves checking the fuel pump operation, inspecting the wiring and connectors for damage or corrosion, and using a diagnostic scanner to read live data and monitor the fuel pump control circuit.

4. Can a DIY enthusiast repair OBDII code P127D in a Chrysler?

While some repairs may be possible for experienced DIYers, diagnosing and repairing issues related to the fuel pump control circuit can be complex and may require specialized tools and expertise. It's recommended to consult a qualified mechanic for proper diagnosis and repair.

5. Is it safe to continue driving with OBDII code P127D in my Chrysler?

Continuing to drive with this code present can lead to potential engine performance issues and further damage to the fuel system components. It's best to address the issue promptly to avoid potential safety hazards or more costly repairs down the line.

6. How much can I expect to pay to repair OBDII code P127D in a Chrysler?

The cost of repairs can vary depending on the underlying cause of the code and the labor rates in your area. Repair costs may range from a few hundred dollars for simpler fixes to over a thousand dollars for more complex issues.

7. What are some preventive maintenance tips to avoid OBDII code P127D in a Chrysler?

Regularly maintaining your vehicle, including fuel system inspections, using high-quality fuel, and addressing any issues promptly can help prevent the occurrence of OBDII code P127D related to the fuel pump control circuit.

8. Can a bad fuel pump cause OBDII code P127D in a Chrysler?

Yes, a faulty fuel pump can cause the fuel pump control circuit to operate abnormally, triggering OBDII code P127D in a Chrysler.

9. Will resetting the check engine light resolve OBDII code P127D in a Chrysler?

Simply resetting the check engine light without addressing the underlying issue will not fix OBDII code P127D. It's essential to diagnose and repair the root cause of the problem to prevent the code from reoccurring.

10. How long does it typically take to repair OBDII code P127D in a Chrysler?

The repair time can vary depending on the specific cause of the code and the availability of parts. Simple repairs may take a few hours, while more complex issues could require a day or more to diagnose and fix.

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