On 2/23/17 integra investigation completed.Manufacture date unknown.Method: failure analysis, device history evaluation results: failure analysis - functional test found the headlight powered "on" but, the light intensity was not adjustable by the control knob.A burnt, component smell was evident.Inspection of the internal components of the rear module assembly found a burnt component toward the edge of printed circuit board (pcb).The pcb was also, burnt at that location.Device history evaluation - nonconforming product report / nonconforming material report history: none.Variance authorization / deviation history: none.Engineering change order / manufacturing change order history: none.Corrective action preventive action history: none.Health hazard evaluation history: none.Conclusion: the complaint report was confirmed.The root cause was not conclusively determined.The returned 90500 led headlight was repaired and will be returned to the customer.No manufacturing, workmanship, or material deficiency has been identified.
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