Bosch WFMC 3200UC can't rotate the drum

Machine draws water and behaves fine until the drum needs to rotate. A soft click is heard and the drum starts to move then quits. This will happen several times. The diag test P:04 works until drum rotation phase begins where the error is d:08. The machine also appears to reset the display and drop out of diag mode. Suggestions please?

Where can I obtain a service manual for this machine? Thanks!

That test indicates a faulty speed sensor or wiring harness.