See Figures 1 and 2
The retracting seat belts used in Toyota vehicles may be tested for function without removal. The spools rely on an internal pendulum mechanism to lock under sudden deceleration or impact. The old test of pulling sharply on the belt will not cause it to lock; it must be tested with the vehicle in motion.
- Fasten the seat belt while in your normal driving position.
- The belt should be snug against your chest and lap. In a safe location, drive the vehicle at about 10 mph. (16 km/h). Apply the brakes very hard; the belt should lock and restrain you in the seat.
To test lap belts, simply connect the buckle (as it would be in use) and apply firm force to either side of the belt. There should be no slippage of the belt through the adjuster.
REMOVAL & INSTALLATION
See Figures 3, 4, 5, 6, 7, 8 and 9
Seat belts are a safety item; the continued success of your face (and the rest of you) depends on the proper removal and installation of the belt assemblies. Use only wrenches of the correct size. Never substitute bolts when reinstalling; seat belt retaining bolts are of specific sizes and materials. Make certain every washer, shim, etc., is reinstalled exactly as it was.
Seat belt removal is simple once you get to the bolts. Removal of seats, interior panels and possibly the carpet will be required depending on the belt. Removing interior panels can turn into a major project, since panels adjoin and overlap. Be very careful during panel removal not to damage the clips and hardware holding the panel. Never force or pry a panel that won't come loose. Instead, look for the hidden clip or screw. If necessary, diagram the placement of clips and retainers. When reassembling, take the time to fit every retainer and align the panel correctly. The one you skip will cause a squeak on every bump.
Lap belt halves are generally bolted to the floorpan or center hump. If removing front lap belts, disconnect the wiring connector at the bottom of the buckle half before removing the retaining bolt. Retractor belts are bolted at both the floor and to a pillar or roof rail. Again, front belts will have a connector at the winder; disconnect it before removal.
When reinstalling, make certain the belt brackets are squarely placed and that the belt is not twisted or backwards. Check the extension and retraction of belts before final tightening any bolts.