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Concern |
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What to look for/Repair |
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Steps Inoperative
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• Factory door ajar switch in-op?
• Fuse burned
• Diodes connected in reverse polarity or faulty diode
• Connections not secure
• Connected to incorrect wire in wehicle electrical system |
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Intermittent operations
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• Connections not secure
• Faulty diode or connection
• Bad ground |
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One or more doors deploy the step, others do not |
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• Diodes connected in reverse polarity or faulty diode
• Connections not secure
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Steps shake and/or shutter during operation
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• Bad ground
• Connections not secure
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Delay in step operation or steps deploy after doors have been closed |
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• Diodes connected in reverse polarity or faulty diode
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Steps make a creaking noise during operation
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• Tighten wedge bolt.
• Loosen lower mount bolts and remove step extrusion from lower mount. Re-install step extrusion to lower mount and tighten. |
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Steps make a ticking noise when fully deployed or fully retracted and motor continues to run
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• Tolerance ring/clutch assembly faulty. Replace clutch assembly. |
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Steps operate randomly |
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• Diodes connected in reverse polarity or faulty diode
• Connections not secure
• Connected to incorrect wire in wehicle electrical system |
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Step stays down all the time and motor can be heard running
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• Tolerance ring/clutch assembly faulty. Replace clutch assembly.
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Step goes up when opening door and down when closing door
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• Motor polarity reversed. Exchange location of wires going into motor plug. (Swap orange and white wires in motor plug.) |
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Step contacts body mount - GM trucks and SUVs |
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• There have been reports of the step making contact with the frame where it supports the body when the step is retracted. This condition is a result of the body not being installed on center on the frame. To eliminate the contact either the body must be moved or the frame can be ground away to make clearance for the step when retracted. |
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