Are they both controlled by the pcm? What about the pwr mirrors?

No neither systems talk to the PCM.  The wipers get timing information from the CTM, but should still work on low and high without a central timer.

 

HTH Hag

 

2001 FSM Ram 8W-62-2.pdf

2001 FSM Ram 8w-53-2.pdf

2001 FSM Ram 8w-53-3.pdf

 

 

Wipers work fine, its the wiper solvent that doesn't work. Brand new motor, that works if you hot wire it so maybe the switch in the control knob because there is no power to the motor when you push the lever in.

 

What controls the cruise control then?

 

 

37 minutes ago, Puller810 said:

What controls the cruise control then?

 

Depends. 

 

Automatic transmission - The Steering wheel controls are received by the Central Timer then past on down the CCD Network to the PCM. Where the PCM talks to the ABS module to get road speed and then controls a vacuum motor pulling the throttle. This is because the throttle valve on the transmission needs to sense throttle position.

 

Manual Transmission - The Steering wheel controls are received by the Central Timer then past on down the CCD Network to the PCM. Where the PCM talks to the ABS module to get road speed and then controls the ECM directly. (Fly by wire).

 

As for wipers it could be the multi-function switch in the column is worn out. 

Edited February 20, 20196 yr by Mopar1973Man