Skip the auto shop - Our mechanics make house calls

Q: OBD II monitor not ready

asked by on

The OBD II monitor has not been ready for 3,000 miles. I am not sure what is wrong, but I think it might be a sensor.

Hi! Your BMW has a timing element for certain functions on the Engine Control Module that can be read by the OBD II scanner. BMW has their own special scanner that resets certain things like oil change, emission inspection, and other items depending on the accessories installed. Other items should still be readable both with the engine off, and also while driving. If you have no readings at all, it is advisable to take your BMW to a qualified technician to diagnose the problems surrounding your Engine Control Module. Be sure to tell them that there is no OBD II readout when you book your appointment.

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: How to replace oil cooler hose 08 Landrover lr2

It does appear as though you will need to remove the intake manifold. My information system doesn't give specific instruction for the oil cooler hoses, but it does give information about the oil cooler. This sort of situation isn't out...

Q: Engine light

Generally, the check engine light comes on when something fairly serious is going on with the vehicle. This can happen for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter,...

Q: Cabin logic is acting up

It sounds like you may have a problem with the communication bus or one of the control modules on it. In a situation like yours where multiple seemingly unrelated problems occur, BMW suggests monitoring the bus for proper communication voltage,...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...