What Does the Engine Code P0A08 Mean?

If your vehicle shows the engine code P0A08, you are likely dealing with a DC/DC converter status circuit issue.
Written by Jason Tushinski
Reviewed by Melanie Reiff
If your vehicle is showing the engine code P0A08, you are likely dealing with a DC/DC converter status circuit that isn’t functioning or is experiencing a fault. You should get this checked out and fixed by a qualified and trusted mechanic as soon as possible.
Diagnostic trouble codes (DTCs) can help you specifically determine your vehicle’s engine issue. With an OBD-II Code reader, you can determine your engine’s issue before taking the vehicle into the shop, thus making finding the solution to the problem much easier.
Car insurance
super app
wants to help you understand whatever trouble code you are dealing with, so that’s why we’ve put together this handy guide with everything you need to know about code P0A08, what it means, how to get it fixed, and how much it will cost you.
Let Jerry find your price in only 45 seconds
No spam · No long forms · No fees
Find insurance savings

What does the engine code P0A08 mean?

Definition: DC/DC Converter Status Circuit
The P0A08 code indicates a problem with your DC/DC converter status circuit, which sends a signal to your vehicle’s powertrain control module (PCM) when the auxiliary battery voltage is low (and your engine isn’t starting).

How much will it cost to fix?

Ultimately, the cost to fix a faulty DC/DC converter status circuit will depend on the
make and model of your vehicle
, as well as the engine type. Fixing this issue will likely take an hour, with rates ranging from between $75 to $150 per hour.

What can cause the P0A08 engine code?

If engine code P080A shows up, this means your DC/DC converter status circuit either isn’t functioning or is functioning with a fault that needs to be repaired. There are several common reasons for this circuit to malfunction:
  • The DC/DC converter is faulty
  • The DC/DC converter harness is open or shorted
  • The DC/DC converter has a poor electrical connection
  • Your vehicle’s powertrain control module is faulty

Common symptoms of the P0A08 engine code

The most common symptom of P0A08 are two that you will likely notice:
Otherwise, your
check engine light being illuminated
could indicate a problem with your DC/DC converter status circuit, as well as a host of other engine problems. Bottom line—if this light is on, get your engine checked out.

How serious is the P0A08 engine code?

If you are reading engine code P0A08, the problem is likely a serious one, especially if your engine won’t start or is stalling. Even if that isn't the case, seeing this engine code means it is a good idea to take your car to a qualified and trusted mechanic for an inspection, diagnosis, and repair of any problem.

Can I fix the P0A08 engine code myself?

If you are handy and know your way around an engine bay, you may feel up to at least taking a look to see if you can handle fixing this issue. At first, do the following:
  • Visually inspect any related connectors and wiring harness
  • Look for any broken, pushed-out, or bent components
  • Check for corroded connector pins
Even if you can diagnose this problem, it is always a good idea to let a trusted and qualified mechanic repair the issue to ensure it's done correctly.

Finding insurance for your vehicle

Keeping car insurance costs low is what
is all about. Signing up with Jerry takes just 45 seconds, and then this
trustworthy comparison shopping super app
gets to work comparing more than 55 top quotes for you to choose from. 
Once you take your pick, Jerry does the rest, including signing you up for your new policy and canceling your old one. Best of all, Jerry automatically searches for better rates on your behalf before each renewal period!
has amazing communication! And even better deals! Thanks to Jerry, I went from $327 to $182 on my payments. I’m so grateful!” —Kim T.
Jerry sends free alerts to keep your car up-to-date so you can avoid costly repairs
* checking your rate won’t affect your credit score
Get ahead of my car maintenance
* checking your rate won’t affect your credit score
Estimate your repair costs for free with GarageGuard™
Simplify your car maintenance with Jerry.
Try GarageGuard™

Easiest way to compare and buy car insurance

No long forms
No spam or unwanted phone calls
Quotes from top insurance companies
Find insurance savings