Mazda 1996 626 Service Manual page 443

SYSTEM DIAGRAM
System Description
The outer sliding sunroof system consists of the sunroof switch, the sunroof relay, and the sunroof
motor.
System Operation
1. Tilt-up
When the sunroof is closed, the sunroof motor limit switch is in the close position. When the sunroof
switch is moved to the open/tilt-up position, voltage is applied to the sunroof motor and to the sunroof
relay coil through the diode bridge. The relay coil is grounded through the limit switch, the diode
bridge, and the close switch contact in the sunroof switch. The sunroof motor operates because it is
grounded through the sunroof relay contact and the close switch contact in the sunroof switch. When
the limit switch reaches the open position, the sunroof relay ground path is interrupted, de-energizing
the relay and momentarily stopping the motor.
2. Slide open
With the sunroof switch in the open position, voltage is applied to the sunroof motor and the sunroof
relay coil through the diode bridge. The relay energizes since its coil is grounded through the transis­
tor, the diode bridge, and the close switch contact in the sunroof switch. The sunroof motor runs
since it is grounded through the relay contact and the close switch contact.
3. Slide close
With the sunroof open, the sunroof motor limit switch is in the open position. When the sunroof
switch is moved to the close position, voltage is applied to the sunroof relay coil through the diode
bridge. The sunroof relay coil is grounded through the transistor, the diode bridge, and the open/tilt
switch contact in the sunroof switch. The sunroof relay energizes and the relay contact closes to
allow voltage to be applied to the sunroof motor. The motor runs since it is grounded through the
open/tilt switch contact in the sunroof switch.
OUTER SLIDING SUNROOF
M2
M 2 -3