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 1,000 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
  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: Why won't my Jeep run? It will crank up but won't run.

Did the old computer fry from the tin foil and you bought a brand new unit to fix the problem? Many of these computers must be programmed before installing if they are brand new, and this must be done at...

Q: I can feel a shimmy in the wheel

If you can see that the rubber seals are torn, the component will need replaced as the internal lubrication is seeping out. The joints are under extreme pressure and need adequate lubrication to sustain integrity. If the joint gets dried...

Q: Obd plug in on my 1995 won't read any on my Obd meter

OBD-II came out in late 1995 in some vehicles, and all vehicles from 1996 onwards. You may need to try an OBD-1 scan tool or try to obtain the codes another way. It is also possible that you have some...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...