Q: How do I test which camshaft sensor is bad? My Check Engine Light is on and the scanner says a bad camshaft sensor is at fault.

asked by on

how to test which cam sencor is bad my engine light on and scanner says bad cam sencor
My car has an automatic transmission.

There is only one cam position sensor on this engine, located just in front of the oil filler cap.

Testing camshaft/crankshaft sensor failures, unfortunately, often only has 2 options for testing a suspect component:

  1. Replace it with a known working part to see if it solves the problem.

  2. Get out your oscilloscope and start looking at wave patterns.

Simple "resistance" testing with an ohm meter while not running will only predict a completely failed sensor with which the car would not run.

If you need help with this, have your camshaft sensor and Check Engine Light inspected further by a certified technician such as one from YourMechanic to confirm this diagnosis, get an accurate assessment of damage and cost estimate for repairs. YourMechanic can dispatch a mobile, professional mechanic to your location for this repair.

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. How do I test which camshaft sensor is bad? My Check Engine Light is on and the scanner says a bad camshaft sensor is at fault.

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: Is the cam sensor replacement the camshaft sensor?

It may be due to the camshaft sensor but would not know unless another test is done to get the failure codes like a P0340 or P0344. The light can come on for over 100 different codes and is only...

Q: How to replace the timing belt and camshaft

Ideally, you should have aligned the marks before you removed the timing belt. It sounds as though everything is completely disassembled already. This makes things a bit more difficult. I would only recommend assembling it the same way as you...

Q: 2007 Chrysler 300 codes, Misfire, catalyst, evap, fuel, EGR, 02 sensor, 02 heater, comp, monitors, 1inc, 5 ready, p0457, p0456, th

When you have many different codes like this then you will need to have all of them tested and looked at to see if it is caused by one or more problems. If you have issues with vehicle after refueling...

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...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.