SUNROOF (Description): DESCRIPTION AND OPERATION (page 3 of 8)

SUNROOF

DESCRIPTION AND OPERATION

76-6-7

Front sunroof motor and microswitch

The front sunroof motor is located within the front sunroof assembly.  The sunroof ECU controls the front 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.

The following table lists the values which can be measured at the listed ECU pins when the conditions outlined are 
met:

Signal values (connector connected) 

Connector/Pin 

No.

Condition

Voltage

Resistance, ohms

C0785-5

Ignition in position II, rear of front sunroof switch 
pressed

+voltage to C0785-

5

C0785-1

Ignition in position II, front of front sunroof switch 
pressed

+voltage to C0785-

1

< 0.5

C0784-8

Ignition in position II, sunroof fully closed

+V Batt

C0784-8

Ignition in position II, sunroof not closed

> 10,0000