Component Tests and General Diagnostics
FUNCTIONAL TEST PROCEDUREDetermine the type(s) of safety belt assembly(s) that has been replaced. Test the new safety belt assembly using the appropriate procedure.
Continuous Loop Shoulder/Lap Safety Belt Test-System With Movable Tongue and One Retractor
1. Driver will buckle up and proceed to a safe test area. If RH front or rear outboard passenger safety belt must be tested, a passenger should be buckled into RH front or rear outboard seat.
2. After reaching a safe area to perform sudden stops, driver will attain a speed of approximately 8 km/h (5 mph). The driver should inform passenger that he is preparing to make a severe brake application. At this time, both driver and rider should grasp their respective shoulder safety belt and prepare to lean slightly forward at the moment brake application is made. (When passenger is not available, the RH front passenger belt may be tested by a driver only, providing driver has the ability to grasp RH front shoulder belt and extend it approximately 66 cm (26 inches) without jeopardizing safe driving.
NOTE: The RH front and rear shoulder safety belts should not be extended fully. This prevents the possibility of a false feeling (full extension versus lockup).
3. The driver will make a maximum brake application without tire skid. (The maximum brake application should be on dry concrete or equivalent hard road surface, never on a wet or gravel road.) The driver and passenger should lean forward slightly into shoulder safety belt. At this instant, belts should lock up with minimal webbing extension.
WARNING: THE DRIVER AND PASSENGER MUST BE PREPARED TO BRACE THEMSELVES IN THE EVENT THE RETRACTOR DOES NOT LOCK.
4. If there is a lockup of both shoulder safety belts, safety belt assemblies are functioning properly. Should either or both retractors fail to lock up at the 8 km/h (5 mph) speed, repeat the test at a constant 24 km/h (15 mph) speed. (This test must be performed with RH front or rear passenger if RH front or rear outboard belts are to be tested.)
5. If either or both shoulder safety belts do not lock up at 24 km/h (15 mph) test, return vehicle for service of malfunctioning safety belts. Remove retractor and rework sheet metal back to its original shape and structural integrity. Install retractor assembly and re-test safety belt assembly(s).
NOTE: If the retractor of a new safety belt assembly has been bolted into a damaged or distorted mounting area, the new retractor could be warped and may not function properly. If this is the case, reshape the sheet metal back to its original shape and structural integrity and install another new complete safety belt assembly.