Skip the auto shop - Our mechanics make house calls

Q: can't connect OBD port

asked by on

I’m having issues connecting to the OBD port. I get a communication failure. I have tried other readers but no luck. I know the readers work due to connecting them to other cars in the same parking lot. Do you have any ideas? I don't see a port under my hood either.

Hello. Usually when the OBD scanner does not connect to a car’s computer it means that the fuse for the OBD connector is blown. This fuse can stand alone as its own fuse or it can have other power supplies tied into the fuse as well. A simple check of the car’s fuses and replacing the burned out fuse should fix this problem. Have a certified technician, like one from YourMechanic, come and test your system to see if a fuse needs to be replaced.

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!

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: Driver's seat no longer moves back when key is removed

I would go into your message center in your Lincoln MKZ to the settings menu. You can then scroll down until you find the feature that is labeled "Easy Exit". Once this feature is found, you should have the option...

Q: P0506

Diagnostic Trouble Code P0506 relates to engine controls. It's not clear from your inquiry if that code was already investigated and resolved but that code should be resolved prior to diagnosing the issue with the transmission. The noise and...

Q: ABS + Brake + Traction Control Yellow Warning light

It depends on the nature of the faults. If there is a internal processing error or solenoid valve block assembly fault. Then it is likely the module will need to replaced and then programmed. A used module could be used...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.