How about this: "What is the cost to swap out the oil pressure switch for the rocker arm in a Honda Odyssey?

To replace the rocker arm oil pressure switch on a Honda Odyssey, you will need to replace the entire rocker arm unit, which is secured in place by a set of bolts and can be easily removed. However, before proceeding with this task, ensure that an oil change is not actually needed. When changing the oil in the vehicle, first ensure that the car has been parked and turned off for a few hours to allow the engine to cool down. Locate the oil pan in the engine compartment and find the drain plug underneath it. Place a bucket under the plug, remove it, and let the oil drain into the bucket until it stops dripping, which might take about an hour. Once the oil has completely drained, reattach the drain plug, and then find the intake port on top of the oil pan. Fill the oil pan to the full mark using a funnel, making sure not to overfill it. Slightly below the full mark is acceptable, but overfilling can cause leaks and oil burning. After filling the oil pan, close the intake port, clean up any spilled oil, and you're done.