LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a BLACK circuit (Clearance / License Plate) alert on trailer HV2602030 at site MTN1. Based on the available evidence, the sensor result is classified as Inconclusive with 35% confidence. The vendor found no defect during their inspection; however, the absence of proper diagnostic tooling (PCT/TechAssist app) and required documentation means the circuit health cannot be independently verified. The sensor alert may have been a transient or intermittent fault, or the root cause may have been missed due to inadequate troubleshooting depth.

Photo Evidence: The single photo submitted (TIRES.jpeg) depicts a close-up of a tire tread with what appears to be a nail or screw embedded in the tire surface — this is entirely unrelated to the BLACK lighting circuit or any lighting defect. There are zero photos of illuminated clearance lights, license plate lights, nosebox wiring, or a TechAssist app verification screenshot. The photo submission is completely non-compliant with the LCM troubleshooting procedure requirements and provides no useful evidence for validating or refuting the sensor alert.

Vendor Compliance: The vendor failed to comply with the LCM troubleshooting procedure in several critical ways. There is no evidence that the Phillips Connect TechAssist (PCT) app was used to diagnose or verify the BLACK circuit. No photos of each light illuminated were provided. No nosebox wiring photo was submitted. No TechAssist app screenshot showing a green 'Verified' status for any of the 5 circuits was included. The technician notes describe only a rudimentary visual and timed observation check, which does not meet the standard required for LCM-triggered work orders. The failure subcategory should have been documented as 'no defect found (confirmed with PCT)' if the app had been used, but absent that, it defaults to 'no defect found (not confirmed with PCT).'

Repair Summary: No repairs were made. No parts were ordered or installed. No labor line items were billed beyond the basic complaint/cause/correction narrative. The alerting BLACK circuit was not formally cleared or verified through any approved diagnostic method. While it is possible the trailer genuinely had no lighting fault at the time of inspection (e.g., a transient voltage drop or connection intermittency), the lack of PCT confirmation leaves this work order inconclusive from a data integrity standpoint.

Key Concerns: There are several notable concerns with this work order. First, the only photo submitted is of a tire with a foreign object embedded in the tread — this suggests either the wrong photos were uploaded, the technician submitted documentation from a different repair, or there was a significant error in work order documentation. Second, complete non-use of the TechAssist app is a procedural violation and undermines confidence in the 'no defect found' conclusion. Third, the absence of any line items (including a diagnostic labor charge) is unusual and may indicate a rushed or incomplete inspection. This work order should be flagged for vendor follow-up, requesting proper PCT app verification and correct photo documentation before the alert is formally closed as a no-fault event.