AutoCodes – Pontiac – P0562 Pontiac

P0562 Pontiac Code - System Voltage Low

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the system voltage. 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 Pontiac indicates 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 4,381

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0562 Pontiac Description

The Powertrain Control Module (PCM) continuously monitors the system voltage. The system voltage information is taken from the PCM's ignition feed circuits. Voltages below 8.0 volts or above 17.1 volts causes improper system operation and/or component damage. If the system voltage is low the PCM raises the idle speed in order to increase the generator output. The PCM disables most outputs to protect the hardware if the system voltage is high. A scan tool may not display data if system voltage is outside this range.

OBDII Code P0562 Pontiac - System Voltage Low - AutoCodes.com — P0562 Pontiac Code - System Voltage Low

What does this mean?

What are the Possible Causes of the DTC P0562 Pontiac?

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 Pontiac?

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.

What does this mean?

Code Tech Notes

Start by recharging or replacing the battery.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0562 Pontiac 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 Pontiac code?

Need more information on how to fix the P0562 Pontiac code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0562 Pontiac Code

1. What does the OBDII code P0562 mean on a Pontiac?

P0562 indicates that the vehicle's powertrain control module (PCM) has detected a system voltage that is lower than the required range for proper operation.

2. What are the common symptoms of code P0562 in a Pontiac?

Common symptoms include dim or flickering headlights, difficulty starting the engine, stalling, malfunctioning electrical components, and the battery warning light illuminating.

3. What are the possible causes of P0562 in a Pontiac?

Possible causes include a failing alternator, a weak or dead battery, loose or corroded battery terminals, damaged wiring, or a malfunctioning voltage regulator.

4. Can I drive my Pontiac with a P0562 code?

Driving with a P0562 code is not recommended, as low system voltage can lead to stalling, loss of power to critical systems, and further damage to electrical components.

5. How do I diagnose a P0562 code on my Pontiac?

Begin by checking the battery voltage, inspecting the alternator output, and examining battery terminals and wiring for corrosion or damage. A multimeter can help test for proper voltage levels.

6. What should the alternator voltage output be on a Pontiac?

The alternator should produce a voltage between 13.5 and 14.7 volts with the engine running. Anything significantly lower may trigger the P0562 code.

7. Does a bad battery cause the P0562 code on a Pontiac?

Yes, a weak or failing battery can cause the P0562 code if it cannot maintain adequate voltage for the vehicle's electrical systems.

8. How can I fix a P0562 code on my Pontiac?

Repairs may include replacing a faulty alternator, installing a new battery, cleaning or tightening battery terminals, repairing damaged wiring, or replacing the voltage regulator.

9. Can a blown fuse cause the P0562 code on a Pontiac?

Yes, a blown fuse in the charging system can interrupt proper voltage regulation and trigger the P0562 code.

10. How much does it cost to repair a P0562 code on a Pontiac?

The cost depends on the specific issue. Replacing a battery may cost $100â€“$200, while an alternator replacement can range from $300â€“$700, including labor.