Left Mirror Does Not Operate (Cutlass Supreme/Grand PRIX/Regal)
- Place mirror select switch in Left position. Toggle mirror position switch between Up and Down positions. With outside mirror control switch connector still connected, using test light, backprobe between Yellow wire terminal "C" and Light Green wire terminal "E" of outside mirror control switch connector.
- If test light does not light, replace outside mirror control switch. If test light comes on, toggle mirror position switch between Left and Right positions. Backprobe between Light Blue wire terminal "B" and White wire terminal "D" of outside mirror control switch connector.
- If test light does not light, replace outside mirror control switch. If test light comes on, check for open or shorted wires and connections. If wires and connections are okay, replace left outside mirror drive unit.