Q: 2006 BMW 750LI no start code po335 I need pin point test and diagram please .thank you

asked by on

Crank no start received code p0335 and many other codes but need pin point test for crank sensor circuit and diagram please.thank you.

My car has 163000 miles.
My car has an automatic transmission.

To test the crankshaft position sensor (Sensor Circuit "A" in your case, if the code is P0335) the fault memory of the DME control unit is read and then the test schedules contained in the BMW diagnostic tool are followed. If you are trying to get a preliminary idea regarding possible failure of the sensor, you can attempt a few tests using a volt ohmmeter. Your car has a three wire sensor so there should be: 1) a constant voltage to the sensor (typically battery voltage or a 5 volt reference from the computer); 2) a good ground to the sensor; and 3) a varying sensor output. The output will be AC and if you get any output at all, by just simply cranking the engine, typically the sensor is good. Output may appear on your volt meter as more or less constant voltage though as most simple voltmeters will not refresh quickly enough to display actually varying real time voltage. If you have a reference voltage, a verified ground, and sensor output, what you might want to do is request a diagnostic to further pinpoint the issue. As you may know, there are multiple causes of a P0335 fault codes. If you suspect an issue with the sensor and/or want to schedule a diagnostic, the recommended service is a check engine light diagnostic. If you request that service, the responding certified mechanic will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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. 2006 BMW 750LI no start code po335 I need pin point test and diagram please .thank you

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: Gasket and valve cover replacement Infiniti M35 2006.

Billing question was sent to CS for the cost of replacing the valve cover gaskets on a 2006 Infiniti M35 with a V6-3.5L engine.

Q: Brake keep locking up while driving and coming to a stop and while in park.

The calipers could have a piston that is sticking or the combination valve on the brake system is sticking causing the brakes to be locking up after touching the brake pedal. I recommend seeking out a professional, such as one...

Q: Mpg going down

Hello. If the gas mileage has gotten worse since you replaced the air filter you will want to look into that first. It may be installed upside down or improperly. If the air filter is not the issue, then you...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...