Originally Posted by wjjklj

The Power Module controls the following functions :

Power module functions
Optimised charging
Reduction of load-side peak consumption
Shut-down of auxiliary consumer units
Quiescent current monitoring
Distribution mode
Automatic electrical system isolation
Load deactivation
Electronic circuit breakers
Central battery voltage notification
Heated rear window (demister)
Interior lights
Boot lid and fuel filler flap control
Data memory
Fail-safe characteristics
Check Control messages
Diagnosis