Installation Procedure, 1985-90 900

1. Remove the original "Saab Guard" module from under the rear seat. If the module was fastened to the floor using screws, reinstall the screws to seal the holes.





2. Remove access cover from alarm module. Set switch 1 to active (on/up position) or passive (down position) arming per customer's requirements. Set switch 2 to the same position as switch 1 (Figure 1).

Note: To control the alarm with the igniton key, set the switches to "Passive." If the customer chooses to use the optional remote transmitters, set the switches to "Active."





3. Mount bracket on module using two (2) machine screws (Fgure 2).


For -1988 models, proceed to stop 7. For Convertible models, proceed to stop 8.


4. On 1989- models, a 10-pin test socket and bracket must be moved to the right a distance of 55 mm.





5. Using the bracket as a template, drill two 7 mm (9/32") holes as per the drawing (Figure 3).


6. Mount bracket with existing hardware.


Caution: When remounting the bracket, be sure the plastic fuel lines are not pinched between the bracket and seat beam.





7. Using the module bracket as a template, drill two (2) holes 3.5 mm (9/64") as per drawing. Do not mount at this time (Figure 4).


Note: On Passive Belt Cars, lift wires in seat beam and slide module under harness before drilling for proper positioning.


8. Convertible models only:

a. The module mounting bracket must be adjusted to account for the different mounting position in the convertible. Bend the mounting tab that attaches to the module so that it is perpendicular (90~) to the tab that mounts to the floor of the car.





b. Locate the module/bracket assembly as shown in Figure 5. Using the bracket as a template, drill two 9/64 in. holes. Secure to the tunnel with the water-proof mounting screws provided.





9. Mount microphone bracket in the center of the seat pivot rail. Do not tighten completely at this time (Figure 6).


10. For Convertible models it is not possible to mount the microphone to the seat pivot rail. It can be mounted instead to the vertical carpet surface in the same general area using a shop-supplied sheet metal screw and speed nut.


11. Cut a 1" slit in the carpeting at the base of the seat beam to route wires to module location.


12. If an LED is mounted in the left front speaker grille proceed as follows:

a. M85 - M88 All Models and M89 (except CV):

^ Connect the blue wire from the LED to the violet wire from the Alpine harness.

^ Connect the violet wire from the LED to the black/red wire from the Alpine harness.

b. M89-90 Convertible: The original LED was supplied with 12 volts directly from Fuse 24 (See Service Manual Sec. 3:2, 1989-90, p. 302). This method is incompatible with the Alpine module.

^ Remove the LH front speaker grille.

^ Unplug the violet wire from the LED in the grille and connect the short lead from the LED to ground.

^ Unplug the blue lead to the LED and connect the short lead from the LED to the violet wire which goes back to the alarm module. Make sure that the violet wire is connected to pin 10 of the large Alpine module connector. (Pin 10 is pulsed, positive output to the LED.)

^ Tape over the end of the long blue wire disconnected from the LED since it leads back to Fuse 24.


ALARM HARNESS CONNECTION (see additional steps for late - M89 and M90 Convertibles)

13. Connect 8-pin plug of alarm harness (supplied) to 8-pin car alarm plug located under rear seat beam.

14. Route alarm harness along seat beam to module location.

15. Plug microphone lead into module.

16. If optional remote transmitters are being used, plug the antenna mast into module at this point. Send mast at right angle to module so that it points towards rear of car.

17. Plug 12-pin connector of alarm harness (supplied) into connector marked "Main" and 6-pin connector of harness into connector marked "Sensor" on module.

18. Secure module to tunnel with two water-proof mounting screws in holes drilled in step 25.

19. Connect car battery.

20. Test all alarm system operations.

21. Fold rear seat back into place. Ensure that it latches securely.

22. Position microphone bracket so that it faces forward with seat in folded position. Tighten microphone bracket into place.