You can check the Mercedes-Benz air conditioning control module with a diagnostic tester. Hook the diagnostic tester to the diagnostic test port.
check on eBay
What year and model
P0601 Internal Control Module Memory Check Sum ErrorThe engine computer has failed.P0601 Internal Control Module Memory Check Sum ErrorThe engine computer has failed.
It has to go to the dealer are someone that repares them. You can not check them yourself.
Check the modulator cable and the transmission pressure module. Adjust cable and clean or replace trans module. Cheers!
still have p0715 still after cganhe the parts / you think is this transmission module \
Check fuse for brake switch, check switch, or light control module,
The year, make and model info would help.
I found the answer at http://www.obd-codes.com/p0601. It says that the Powertrain Control Module (PCM) needs to be replaced.
Check your Fan Control Module!!! Check your Fan Control Module!!!
air bag module check the service manual Toyota usually place the module behind the instrument panel
wiper module.... i know for a fat that the control that controls your wipers and turn signal, its one big module, under steering column. check your wiper motor or blown fuse