94 e320 Codes can you make something out of them?

[benjay]

I have a 1994 e320 that is having a problem with the electronic throttle. i have been advised by the dealership here that the problem is probably the throttle body actuator. I pulled the emissions codes from the built in diagnostic module and got
6 Idle speed control faulty

Pin 8
49 voltage supply at engine control module implausible/low volts

Pin 14
3 right ea/cc/isc actuator (left cylinder bank) (m16/1)

So my biggest question is what to do about the low voltage,(battery is new and connections were cleaned)

and what my code 3 is trying to tell me (is that the throttle actuator??)

any advice would be greatly appreciated!
Thanks