How to Troubleshoot and Fix P0562 Jeep DTC Code? (Ultimate Guide)

When your car shows issues with starting up or seems not to work overall correctly, it can be pretty scary! And coming across a fault code like P0562 can be even more intimidating. 

A P0562 code mainly indicates the system voltage is low, and there are a few reasons why this can happen! So, keep reading to know what causes the P0562 code and how to fix it!

What Does the P0562 Jeep Code Mean?

A P0562 Jeep code is essentially a DTC (Diagnostic Trouble Code) code indicating low engine system voltage. This code is detected by your Jeep’s ECM (Engine control module). 

A faulty alternator is one of the most common reasons a P0562 code may show. An alternator helps manage the amount of volts inside your engine system. If the alternator goes bad, the required volts will fall below the threshold. 

This will cause the engine not to be able to function properly. In this case, the ECM will detect the following issue and indicate low system voltage using the P0562 code. 

It’s important to note that a few more things can cause the error code to appear. More on that later on in this article!

Here is a breakdown of the P0562 code:

  • P = Indicates a vehicle’s powertrain that helps propel the car forward. 
  • 0 = Indicates the code is derived from the SAE standard.
  • 5 = Indicates the idle control system is not okay.  
  • 62 = Indicates specific issue; not enough voltage.  

What Causes System Voltage Low and P0562 on a Jeep?

There are a few reasons why your Jeep might show a P0562 code. The code indicates a problem with the system voltage, which essentially means an issue with the battery and alternator. 

So, a P0562 code shouldn’t be ignored as it indicates issues in key components of your car. Here are some factors that can cause a P0562 code on your Jeep: 

  • Issues with the battery. 
  • Corrosion or burning with the wiring and terminals connecting the alternator and battery. 
  • Issues with the alternator.
  • Faulty voltage regulator. 
  • Faulty PCM module.

Read Also: How to Troubleshoot & Fix C2200 Jeep DTC Code? (Ultimate Guide)

How to Troubleshoot and Fix P0562 Jeep Code?

Now that you know what causes the P0562 code on your Jeep, it’s time to learn how to troubleshoot the issues it indicates. 

As there are multiple causes of the fault code, we’ll be providing a fix for each of the causes! We’ll also include a short description of the troubleshoots for each. 

1. Check the Battery for Possible Issues

The battery helps generate the voltage required to run the internal system of your Jeep. And without a properly functioning battery, the P0562 code can appear, as it is mainly a ‘low voltage code’. 

A good battery will have about 12 volts without the engine running. Unfortunately, a faulty battery will need replacing and isn’t fixable. 

But before that, let’s find out if the battery is even the problem! To check the battery’s health, all you’ll need is a good multimeter. 

Get a multimeter and attach the positive lead to the B+ terminal of your battery and the negative to the black (negative) terminal. Now check the read; if it’s about 12 volts, the battery is good! 

If your battery is the issue, the replacement cost may be around $200-$300, depending on the type of battery and labor cost.

Read Also: How to Troubleshoot and Fix P0513 Jeep DTC Code? (Ultimate Guide)

2. Check the Wiring and Terminals Connecting the Battery and Alternator

If the battery of your Jeep is good, but the P0562 code is still showing, the problem might be in the wiring or terminals. Check if the wiring connecting the battery to the alternator has any burning or corrosion.

If there are obvious issues in the terminals, you should replace them immediately. Wore-out terminals or connection wires will cause problems with your engine starting as the battery fails to deliver the required volts to the system.  

The good news is you won’t have to throw your battery or alternator away for faulty terminals! Simply take the old ones out and attach new ones. You can find wires and terminals in your local auto shop or Walmart. 

Watch this video to learn how to replace Jeep battery terminals:

3. Check the Alternator for Issues

If both the battery and the connecting terminals are good, we’ll move to the prime cause for a P0562 code which is a faulty alternator. Amongst the other causes, a faulty alternator is the most common one. 

If the alternator of your Jeep is experiencing issues, it will struggle to keep the balance of volts required to run the engine system. 

This will lead to your Jeep showing a P0562 code. It’s better to fix this issue with the help of a mechanic as the process is quite long and should be done with patience. 

The mechanic will go over the wiring, fuse connectors, PCM connectors, etc., to thoroughly check the alternator before taking any step. 

A defective alternator for a Jeep will cost you between $400 and $700 to replace, not including labor. Even though the part is expensive, it is unquestionably worthwhile.

Read Also: How to Troubleshoot & Fix C148f-1D Jeep DTC Code? (Ultimate Guide)

4. Check the Voltage Regulator

Connecting to the alternator and battery, there is a voltage regulator, which can also be a problem that can cause a P0562 code. 

Without a functioning voltage regulator, the engine can’t regulate the appropriate number of volts in the system. 

In this case, you should contact an automobile engineer and get their professional point-of-view. 

They will put your car through a check and make sure they check the voltage regulator. 

5. Check If the PCM Module Is Functioning Properly

Sometimes, the battery, alternator, and terminals all are completely fine, and the main issue lies in your car’s brain. Otherwise known as a Powertrain Control Module.

The PCM is responsible for the power distribution in your car. Without it, the car will fail to operate properly as the power distribution will be imbalanced. 

This component is also responsible for problem detection in your Jeep. It means the P0562 code in your Jeep might be a bluff, thanks to a faulty PCM! 

The PCM module is like a pen drive; you can replace it yourself. However, a professional should check whether or not it’s faulty. A powertrain control module replacement will cost you about $680-$800.

Read Also: How to Troubleshoot & Fix P06DE Jeep Wrangler DTC Code?


Hopefully, many of your questions about code P0562 have been answered. To increase your understanding, here are some frequently asked questions you might want to know.

Can you drive a Jeep with a P0562 code?

You can drive a Jeep with the P0562 code, but it won’t be pleasant. The main reason is a P0562 code indicates a series of problems, such as the car not starting, misfires, burning smells, etc. So, driving with the issue won’t be much fun!

How much does it cost to fix the Jeep P0562 code?

Depending on the issue, it might cost you from 1000$-5000$ to fix a Jeep P0562 code. The cost may be higher for an alternator or PCM module replacement. But more minor fixes will be cheaper. 

What is the most common cause of a P0562 code?

The most common cause of a P0562 code is a faulty alternator. Further research shows that a faulty alternator causes almost 70% of the cases regarding a P0562 code.


A fault code like P0562 can seem intimidating at first glance. No need to be worried. It’s only a warning sign; you must take the necessary steps to fix the issues.

To fix the issue, you must find the root cause and take the best course of action to fix it. If you are not confident, let a certified mechanic handle the job.

Read Also: How to Troubleshoot & Fix P0420 Jeep DTC Code? (Ultimate Guide)

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