LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Lighting - Failed Light

Sensor Verdict: The LCM BLACK circuit alert (Clearance / License Plate) is assessed as a confirmed 'Defect Detected' with 88% confidence. The vendor's own notes validate the sensor trigger — a license plate light had failed and required replacement, and wiring issues with the tail lights were also discovered during the same inspection. The alert appears to have accurately flagged a real and actionable defect in the BLACK circuit. Confidence is not 100% due to the absence of TechAssist app confirmation and the lack of proper photographic documentation to independently verify the full scope and resolution of the defect.

Photo Evidence: Only one photo was submitted (MUDFLAPS.jpeg), which shows the undercarriage of the trailer near the rear axle area, including what appears to be a reflector or small light bracket — notably no mudflap is clearly visible despite the filename. There are no photos of any illuminated lights, no license plate light shown (on or off), no tail light assembly photos, and critically no nosebox photo. The photo does not confirm any defect or repair. The image may have been submitted in error or mislabeled. No TechAssist app screenshot showing green 'Verified' status on any of the 5 circuits was provided. Overall, the photo documentation is entirely non-compliant with the LCM troubleshooting procedure requirements.

Vendor Compliance: The vendor (COX) did not follow the prescribed LCM troubleshooting procedure. The procedure explicitly requires: use of the Phillips Connect TechAssist (PCT) app, photographs of each light in the circuit while illuminated, a clear photo of the nosebox wiring, and a TechAssist completion screenshot showing green 'Verified' status beside each of the 5 circuits. None of these requirements were met. The vendor notes do indicate diagnostic activity was performed (Labor Line 2 references checking and finding 'several issues with lights and wiring'), but no structured PCT-guided troubleshooting is evident. The failure feedback category provided ('wiring and worn out') is informal and does not align with the standardized expected feedback category list.

Repair Summary: Two repairs were performed: (1) removal and replacement of the license plate light, directly addressing the BLACK circuit alert; and (2) correction of tail light wiring, with only 2 of 4 tail lights functioning prior to repair. Both repairs are relevant and address legitimate defects. No parts line items were provided in the work order, making it impossible to confirm part numbers, brands, or whether compliant replacement components (e.g., approved LED fixtures) were used. The absence of parts documentation is a notable gap in the work order record.

Key Concerns: Several issues warrant follow-up: (1) No line items were recorded — parts used cannot be verified for compliance or warranty purposes; (2) The single submitted photo is irrelevant to the defect and repair, suggesting either a documentation error or vendor indifference to photo requirements; (3) The PCT/TechAssist app was not used, meaning circuit-level verification of all 5 circuits was not completed — additional faults on other circuits could exist undetected; (4) The notation that only 2 of 4 tail lights were operational suggests a potentially broader wiring issue beyond just the BLACK circuit, which may also touch the RED (stop/tail) circuit — this cross-circuit concern was not formally escalated. Vendor should be coached on LCM documentation standards and PCT app usage compliance.