The Whirlpool Duet appears to be the same/similar beast. [http://adcxns1.whirlpool.com/Service/SrvTechAdm.nsf/2cd44500d572193285256a45004fd9d6/eab852a13fbc842085256aa200643dd6/|THIS MANUAL] may be helpful esp page 6-5
'''Potential Causes'''
• Check wire harness connections between the Drive Motor/Tachometer and the Motor ControlUnit (MCU), and between the MCU and the Central Control Unit (CCU)
• Check the Drive Motor
• Check the MCU
• Check the Wire Harness