There are now 2 main kinds of cylinder deactivation process used nowadays what are actually depending on the kind of engine. The car engine P2436 code is used for the pushrod design what uses solenoids to change the oil compression brought to the lifters. In their distorted state, the lifters are unable to raise their mate pushrods under the valve rocker arms, consequential in valves that cannot be activated and keep closed. You can use the general meaning of the code for solving the car engine problem. If you find the real meaning of the code, then you should not look for any other meaning of the code.