Discovery II
SUNROOF
DESCRIPTION AND OPERATION 76-6-11
Rear sunroof motor and microswitch
The rear sunroof motor and microswitch are located within the rear sunroof assembly. The sunroof ECU controls the
rear sunroof motor.
The sunroof ECU determines the direction the sunroof motor runs. A battery signal to one side of the motor and an
earth to the other side of the motor causes the motor to turn in one direction, reversing the polarity through the same
pins causes the motor to turn in the opposite direction.
Operating Parameters (connector connected)
Connector/Pin
No.
Condition
Voltage
Resistance, ohms
C0785-4
Ignition in position II, rear of rear sunroof switch pressed +voltage to C0785-
6
C0785-6
Ignition in position II, front of rear sunroof switch
pressed
+voltage to C0785-
4
< 0.5
C0784-2
Ignition in position II, sunroof fully closed
+V Batt
C0784-2
Ignition in position II, sunroof not closed
> 10,0000