Q: Will battery disconnect erase/delete obd2 data

asked by on

I want to change my spark plugs (and save myself about $50 in labor), but don't want to lose any obd2 error codes my mechanic may need. I am planning on having my mechanic do a full inspection on the vehicle later this week. Will removing the negative terminal from the battery erase or delete the codes, and make it more difficult and costly for the diagnosis of any additional repairs currently needed on my vehicle? Thank you.

Disconnecting the battery will not clear any codes in memory of the computer for stored OBD2 codes. The only way to clear the codes is to use a scanner and use the code clear function.

Was this answer helpful?
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. Will battery disconnect erase/delete obd2 data

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: Starter not engaging at all but passed bench test

You will need to check the voltage at the starter when someone is cranking it to make sure cables are sending all the voltage to it. You can do a voltage drop on the cables to see if one is...

Q: Broken spark plug in head

Having a broken spark plug in the cylinder head is never a good thing. If the threaded part of the plug is in the head then it needs to be extracted in one of two ways. There are special extraction...

Q: Cost to replace full wiring for positive battey termical 2012 Mitsu Eclipse

The cable will need to be priced and acquired from the dealer for correct part and the labor calls for 2.0 hours to replace it. This does not include any testing or additional parts replaced with the cable that may...

Related articles

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...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...