P0800 P0800 code definition Transfer Case Control System (MIL Request) What the P0800 code means P0800 is an OBD-II generic code that the engine control module (ECM) got an input from the transfer case control module (TCCM) to turn on...
Hello, thanks for writing in. P0800 (https://www.yourmechanic.com/article/p0800-obd-ii-trouble-code-transfer-case-control-system-mil-request-by-jay-safford) is the trouble code for an issue with the vehicle's Transfer Case Control system. When the transfer case control module, a computer that is separate from the engine computer, detects an issue with...
