LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Lighting - Missing Light

Sensor Verdict: The LCM alert on the RED (Brake) circuit is confirmed as a true positive with high confidence (90%). The technician's voltage test at the pulsating brake light harness showed power present but no light output, conclusively identifying the light itself as the failed component. This is a direct match to the faulted circuit reported by the sensor. The slight confidence reduction accounts for the absence of PCT TechAssist app verification and the incomplete repair status at work order close.

Photo Evidence: The ten photos provided do not include any images of the rear brake lights illuminated or extinguished in a manner that documents the specific lighting defect. Photos show: trailer unit ID V504295 on the nose post (Photo 1); dual tires with sidewall cracking and apparent chunking on the tread edge (Photos 2 & 7); a severely corroded steel wheel with peeling rust and paint at the pilot bore/hub area (Photos 4, 6 & 8); a close-up of a valve stem or tire inflation component being held (Photos 3 & 9); and the rear of a trailer showing tail lights, an Oregon license plate (HV 38303), and a general yard scene with Amazon Prime trailers (Photos 5 & 10). Critically, there are no photos of the faulted pulsating brake light, no TechAssist app completion screenshot, no nosebox/Smart7 box photo, and no images of any lights illuminated for circuit verification. The photos provided appear to document ancillary findings (tire and wheel condition) rather than the primary LCM lighting defect.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure as instructed. There is no evidence of Phillips Connect TechAssist (PCT) app usage, no screenshot showing green 'Verified' status for any of the five circuits, and no photos of each light illuminated. The nosebox/Smart7 box was mentioned in the notes but not photographed. While the technician did perform a voltage test at the brake light harness — which is a reasonable diagnostic step — this does not substitute for the required PCT app workflow. The vendor did contact Phillips Connect and obtained a reference number (123853) for the Smart7 box replacement, which is a positive step, but the core documentation and app-based verification requirements were not met.

Repair Summary: No repairs were completed at the time of work order closure. The technician identified the rear pulsating brake light as failed and acknowledged parts need to be sourced. The Smart7 box with a broken cover bolt was also flagged for replacement (reference number 123853 obtained from Phillips Connect). A cracked 70-way plug with worn connection point was noted. The left midship light was observed to have surface lens scuffing but was noted as functional with no condensation. No line items were recorded, confirming no parts were installed. The alerting RED (Brake) circuit remains unrepaired.

Key Concerns: Several significant concerns are flagged: (1) The work order was closed with the primary defect unrepaired — the failed brake light was identified but parts were not sourced before closure, creating a safety and compliance risk. (2) The Smart7 box with a broken cover bolt is a notable secondary finding; per Phillips Connect guidance cited by the technician, this constitutes a Smart7 failure requiring replacement, which could affect LCM system integrity. (3) The 70-way plug crack and worn connection point are additional wiring concerns that could cause future LCM alerts. (4) Photo documentation is entirely non-compliant — no lighting photos, no nosebox photo, no PCT app screenshots were provided. (5) The photos that were submitted appear to document wheel/tire corrosion and tire condition, suggesting the technician may have been documenting unrelated defects or a different asset inspection. This work order should be flagged for follow-up to confirm brake light and Smart7 box replacement are completed and properly documented.