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• Vehicle movement is prevented unless the lift door is closed, ensuring the lift is stowed.
1. Verify lift door closed signal (vehicle interlock).
2. Refer to the interlock installation instructions.
• Lift operation shall be prevented unless the vehicle is stopped and vehicle movement is prevented.
1. Verify vehicle secure signal (orange 18 gauge) single conductor plug from inside valve block housing
has a +24 volt signal.
2. Refer to the interlock installation instructions.
• The platform will not fold/stow when occupied.
- Refer to Platform Unfold Switch Adjustment procedure.
• The inner roll stop will not raise if occupied.
- Check Inner Roll Stop Occupied and Inner Roll Stop Deployed Switches for wear or damage, and for
proper operation.
• The outer barrier will not raise if occupied.
- Refer to Outer Barrier Occupied Switch Adjustment procedure.
• Verify platform lighting when lift is deployed and pendant illumination when lift is powered.
1. Replace bulb(s) in the light housing.
2. Check vehicle wiring and fuses going out to lights.
• A visual and audible warning will activate if the threshold area is occupied when the platform is at least 1"
below floor level.
1. Make sure connector(s) to threshold sensors are properly connected.
2. Call BraunAbility Aftersales.
• Platform movement is prohibited beyond the position where the inner roll stop is fully deployed (up).
- Check Inner Roll Stop Occupied and Inner Roll Stop Deployed Switches for wear or damage, and for
proper operation.
• Platform movement shall be interrupted unless the outer barrier is deployed (up).
- Check Outer Barrier Occupied / Raised limit switch, wires and connector.
- In diagnostic mode, LCD should display a value of “1” for OBAR SW when outer barrier is occupied
and the platform is a minimum of 3" above the ground.
Certification Checklist Diagnostic Procedures
The following operations and conditions must be
functionally verified in order for the lift to be FMVSS
403/404 compliant. If an operation does not func-
tion as described or a condition is not met, follow
the referenced procedures to correct the problem or
contact a BraunAbility Aftersales representative.
Public use vehicle manufacturers are responsible
for complying with the lift lighting requirements in
Federal Motor Vehicle Safety Standard No. 404,
Platform Lift Installations in Motor Vehicles (49 CFR
571.404).
