Seat Belt - Front Limit Switch Replacement
89subaru05NUMBER 07-41-89
DATE 10-16-89
APPLICABILITY 1988 & 1989 4DR SEDAN AND STATION WAGONS 1990 LOYALE FROM 8-31-89 TO 7-31-90
SUBJECT: REPLACEMENT OF THE PASSIVE SEAT BELT FRONT LIMIT SWITCH
The passive seat belt front limit switch is now available as a separate part. This switch can be tested and replaced without removal of the rail assembly.
Tools and materials required:
1/4" Drive Ratchet w/10 mm Socket # 2 Phillips Screwdriver Pocket Screwdriver OHM Meter Roll of 1/2" wide Electrical Tape
Testing:
When the front limit switch is suspected, the following continuity test should be performed.
1. Carefully remove front pillar upper trim panel as described in the 1989 Service Manual section 5-3, page 35.
2. Disconnect the front limit switch at the connector near the front of the rail assembly.
3. Place a circuit tester (OHM meter) on each pole of the connector (switch side).
4. Insert a screwdriver or equivalent in the rail and push on the damper spring which is installed on the front of the rail.
NOTE: Use care not to damage the surface treatment inside the rail, or the damper spring, or the rail itself.
5. If the switch is good, the following reading will be noted.
a. When the damper spring is pushed - switch off (no continuity) (Infinity)
b. When the damper spring is not pushed - switch on
(continuity) ( 0 Ohms)
If the limit switch has been diagnosed as the problem, the following procedures should be followed.
Removal:
1. Disconnect negative cable from battery.
2. Remove tape holding plug connector to rail assembly.
3. Remove 10 mm bolt from rail assembly to roof pillar. This will allow room to rewrap the connector with electrical tape later on.
4. Remove the two Phillips screws holding the limit switch cover. At this time, the limit switch can be removed.
Installation:
1. When installing the limit switch cover, make sure that the bosses of the limit switch fit in the holes of the limit switch cover.
2. Make sure that the electrical connector is securely taped on. Reinstall the 10 mm bolt from rail assembly.
3. Using an OHM meter, put both terminals to both poles of the limit switch and check for continuity. When depressing damper spring with pocket screwdriver no continuity should be noted.
If the limit switch fails in the above test, it must be removed again and reinstalled. In case that the removal/installation is not successful or any abnormalities exist even after replacing the limit switch with another one, replace the "rail & motor assembly."
4. Reinstall trim panels and reconnect negative battery cable.
The parts listed below can also be found in Parts Catalog No. EBU8-01, Figure 646-1B, pages 664-666, detail F.
Part Number Part Name Quantity
64957GA090 Limit Switch 1
64957GA120 Limit Switch Cover RH 1
64957GA130 Limit Switch Cover LH 1
64957GA150 Screw M3K 2
For warranty information refer to the 1990 Flat Rate Manual page 8A- 24-25.