[hiccup]

I don't know for sure where the relays would be in a 35 express, but I would expect them to be behind the dash.  There will be 4 of them lined up next to each other.  Generically this is what they would look like

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The 4 relays are set up in a 'reversing' configuration.  Each ram has two wires, so 4 wires total for the two rams.  Each of these 4 wires gets its own relay, so if one of the 4 relays stops working, you would get the symptoms you describe.  Of course it could also be the ram itself, as well as a tripped breaker, or disconnected wire.  A volt meter and 15 minutes can tell you the root cause.