My blower stopped working. Have checked fuses. Other posts have suggested checking the control voltages coming off the CCU pushbuttons by disconnecting the connector just under the windshield, behind the power steering, almost at the firewall. Per post black wire is ground, red is battery, and yellow is control. I checked the voltages at the wire side, black to yellow or black to red wires gives no voltage. I also opened up the CCU and checked continuity between the small circuit board for the blower pushbuttons and the main CCU circuit board. What next?

Robby Roll
San Francisco
'88 260E