1971 duster
Let's look at the pdf diagram you posted. That may be corrected because it matches what is on the car.
The T-shaped two cavity connectorfor the headlight warning buzzer shows L7A, just like yours. L7A should have continuty to the headlight switch connector.
To the left in the diagram is an angled connector showing yellow wires is for the map ignition switch light.
So the service manual shows the wires correctly but incorrectly illustrates that as a 3 position connector.
Let's look at the pdf diagram you posted. That may be corrected because it matches what is on the car.
The T-shaped two cavity connectorfor the headlight warning buzzer shows L7A, just like yours. L7A should have continuty to the headlight switch connector.
To the left in the diagram is an angled connector showing yellow wires is for the map ignition switch light.
So the service manual shows the wires correctly but incorrectly illustrates that as a 3 position connector.