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P253D 2016 GMC Sierra Code - Power Take-Off Relay Feedback Circuit High Voltage

Quick Answer

The P253D diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Power Take-Off (PTO) Relay Feedback Circuit High Voltage. Common causes include Malfunctioning power take-off relay, Short circuit in the relay feedback circuit, Faulty wiring harness connected to the power take-off system. 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
P253D 2016 GMC Sierra indicates Power Take-Off Relay Feedback Circuit High Voltage.
Common causes
Common causes include Malfunctioning power take-off relay, Short circuit in the relay feedback circuit, Faulty wiring harness connected to the power take-off system.
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 P253D 2016 GMC Sierra Description

The P253D diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Power Take-Off (PTO) Relay Feedback Circuit High Voltage. This code indicates that there is a high voltage condition detected in the relay feedback circuit of the power take-off system. The power take-off system is responsible for transferring mechanical power from the engine to auxiliary components such as hydraulic pumps, generators, or other machinery. In the case of a GMC Sierra, this system is commonly used in commercial applications or for heavy-duty tasks.

OBDII Code P253D 2016 GMC Sierra - Power Take-Off Relay Feedback Circuit High Voltage
P253D 2016 GMC Sierra Code - Power Take-Off Relay Feedback Circuit High Voltage

Common Causes of P253D 2016 GMC Sierra

  1. Malfunctioning power take-off relay
  2. Short circuit in the relay feedback circuit
  3. Faulty wiring harness connected to the power take-off system
  4. Issues with the vehicle's electrical system, such as a faulty ground connection
  5. Water or corrosion damage to the relay or wiring components

Symptoms of P253D 2016 GMC Sierra

  1. Illumination of the check engine light on the dashboard
  2. Difficulty engaging or disengaging the power take-off system
  3. Reduced power output from the auxiliary components
  4. Unusual noises coming from the power take-off system
  5. Decreased fuel efficiency due to inefficiencies in the power take-off system

How to Fix P253D 2016 GMC Sierra

  1. Begin by performing a comprehensive inspection of the power take-off relay and the relay feedback circuit to identify any visible damage or corrosion.
  2. Test the power take-off relay using a multimeter to check for proper functionality and voltage output.
  3. Inspect the wiring harness for any signs of damage, wear, or corrosion. Repair or replace any damaged wires as necessary.
  4. Clear the DTC from the vehicle's system using an OBD-II scanner, and test drive the vehicle to ensure that the code does not reappear.
  5. If the code persists, consult with a professional mechanic or dealership for further diagnosis and repair, as the issue may require specialized tools or expertise to resolve.

Cost to Fix P253D 2016 GMC Sierra

The typical repair costs for addressing a P253D code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. On average, the cost of replacing a power take-off relay and repairing any damaged wiring harnesses can range from $200 to $500, including parts and labor. Additional costs may apply if there are underlying electrical system issues that need to be addressed. It's important to note that the diagnosis time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to ensure a competitive price. Keep in mind that rates may be higher at dealerships or in metropolitan areas, while independent shops tend to 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 P253D 2016 GMC Sierra Code

1. What does the OBDII code P253D mean on a 2016 GMC Sierra?

P253D indicates a high voltage issue in the Power Take-Off (PTO) relay feedback circuit, which monitors the PTO system used for auxiliary equipment like winches or hydraulics.

2. What are the common symptoms of a P253D code in a GMC Sierra?

Symptoms may include a check engine light, PTO system not functioning, reduced vehicle performance, or noticeable electrical issues.

3. What causes the P253D code to appear?

Common causes include a faulty PTO relay, damaged wiring or connectors in the PTO circuit, a malfunctioning control module, or a blown fuse.

4. Can a P253D code affect the drivability of my 2016 GMC Sierra?

It may not directly affect basic drivability but can impair PTO operation, and in some cases, it may lead to reduced engine performance or related electrical issues.

5. How do I diagnose a P253D code?

Start by inspecting the PTO relay, wiring, and connectors for damage or corrosion. Use a multimeter to check for proper voltage and continuity in the circuit.

6. Can I drive my GMC Sierra with a P253D code?

While the vehicle may remain operable, it’s best to address the issue promptly, especially if you rely on the PTO system for work or other tasks.

7. How do you fix a P253D code?

Repairs may include replacing a faulty PTO relay, repairing damaged wiring or connectors, replacing a blown fuse, or reprogramming the control module if necessary.

8. How much does it cost to fix a P253D code on a GMC Sierra?

Repair costs vary but typically range from $50 to $200, depending on whether the issue is a simple relay replacement or involves more extensive wiring repairs.

9. Could a weak battery trigger a P253D code?

Yes, a weak or failing battery can cause electrical irregularities, potentially triggering this code. Ensure the battery and charging system are in good condition.

10. Does the P253D code require professional repair?

If you’re comfortable with basic electrical diagnostics, you might handle it yourself. However, for complex issues, consulting a professional mechanic is recommended.

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