Skip the auto shop - Our mechanics make house calls

Q: Getting multiple trouble codes

asked by on

I am getting a variety of trouble codes, including P1756, P0455, P1685, P0136, P0033, P0051, and P0121.

This is a strange group of codes that you have. Most of the time when you get this number of different codes coming up it is due to a voltage issue or a module that is failing. When something like this comes up, a mechanic would typically check the battery and the battery connections. They would have to clear the codes and drive the vehicle. If the codes do not come back then the problem is fixed. If they come back then each individual part would be checked to see if it is these parts or the module. I recommend having a mechanic properly inspect the symptoms for each trouble code to determine how severe any of the problems are and what repairs are needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Getting multiple trouble codes

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Jeep stalls when driving on bumpy roads

Hi Hunter. Thanks for the question today. A random stalling issue like you've described can be caused by loose electrical connections - but knowing which ones for certain would require an onsite inspection. It's also possible that fuel system obstructions,...

Q: Car stalled after going through flood waters

Going through a large body of water can cause a number of issues. If the engine is not cranking over then it may have drawn in water and is now locked. If the engine is cranking over then it may...

Q: I bought a used vw beetle 2001. diag test came up with codes t0300 t0303 t0172 t0768 mechanic said he would charge 900.00 for the

Each of these codes are for different problems, and would need to be diagnosed. If you are low on coolant, then your misfire may be due to a blown head gasket and the first three codes. The last code, P0768,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...