AutoCodesGeneric – P0562

P0562 Code - Charging System Voltage Low

Quick Answer

The battery supplies electricity to the Engine Control Module (ECM) even when the ignition switch is OFF. Common causes include Low battery charge, Battery defective, Loose or missing alternator drive belt. 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
P0562 indicates Charging System Voltage Low.
Common causes
Common causes include Low battery charge, Battery defective, Loose or missing alternator drive belt.
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 Popularity 74,895
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Aug 16, 2020
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Code P0562 Description

The battery supplies electricity to the Engine Control Module (ECM) even when the ignition switch is OFF. This electricity allows the ECM to store data such as Diagnostic Trouble Code (DTC) history, freeze frame data, fuel trim values and other data. If the battery voltage falls below a minimum level, the ECM will conclude that there is a fault in the power supply circuit. The next time the engine starts, the ECM will turn on the Malfunction Indicator Light (MIL) and a DTC will be set.
OBDII Code P0562 - Charging System Voltage Low - AutoCodes.com
P0562 Code - Charging System Voltage Low

What are the Possible Causes of the DTC P0562?

  • Low battery charge
  • Battery defective
  • Loose or missing alternator drive belt
  • Faulty alternator
  • Open or short system voltage circuit

How to Fix the DTC P0562?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0562 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0562 code?

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Need Help with the Code?

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Information for Specific Makes

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 P0562 Code

1. What does the OBDII code P0562 mean?

P0562 indicates that the powertrain control module (PCM) has detected a lower voltage output from the charging system than expected. This code is often seen with other faults related to the electrical system.

2. What are the symptoms of code P0562?

Symptoms of code P0562 can include a battery warning light on the dashboard, dimming headlights, slow engine cranking, and in some cases, the vehicle's electrical systems may fail to function properly.

3. What causes a P0562 code to appear?

The code P0562 can be triggered by several issues including a failing alternator, poor battery condition, loose or corroded battery cables, or problems with the vehicle's electrical connections and wiring.

4. How can I diagnose the problem leading to a P0562 code?

To diagnose a P0562 code, start by checking the battery's state of charge and condition. Inspect all battery connections and wiring for corrosion or looseness. Test the alternator’s output voltage and inspect its connections and wiring. A comprehensive diagnosis might require an advanced scanner to monitor live data and a multimeter.

5. What steps should be taken to fix the code P0562?

Repairing a P0562 code involves addressing the underlying issue: replace a faulty battery, repair or replace a failing alternator, tighten loose connections, or clean and secure corroded terminals. After repairs, clear the code with an OBD-II scanner and verify if the issue is resolved.

6. Can I drive my car with the code P0562 active?

While you might be able to drive with P0562 active, it is risky as it indicates a problem with the charging system that could lead to a dead battery or the electrical system failing while driving, which could be dangerous.

7. What tools are required to diagnose code P0562?

Diagnosing code P0562 typically requires an OBD-II scanner, a digital multimeter, and a battery tester. These tools help you verify the voltage outputs and the condition of the battery and alternator.

8. How urgent is it to address a P0562 code?

Addressing a P0562 code should be considered urgent as the charging system is crucial for the vehicle’s operation. Failure to address this issue promptly can result in a dead battery, vehicle stalling, and potentially being stranded.

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