LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated an alert on the BLACK circuit, which governs Clearance and License Plate lighting on trailer HV2507088. The sensor result is classified as Inconclusive with a confidence of 35%. While the technician verbally dismissed any lighting fault, the complete absence of required diagnostic documentation — PCT app screenshots, illuminated light photos, and nosebox imagery — means there is no credible evidence to either confirm or refute the original alert. The LCM system has a strong track record of identifying real circuit-level anomalies, and a simple verbal dismissal without structured verification is insufficient to close the loop.

Photo Evidence: No photos were provided with this work order. The LCM troubleshooting procedure explicitly requires photos of each light illuminated, a clear picture of the nosebox wiring, and a TechAssist app screenshot showing a green 'Verified' status for all five circuits. None of these were submitted. This is a significant documentation gap that prevents any independent assessment of the BLACK circuit's condition at the time of inspection. Without visual evidence, there is no way to confirm clearance lights were operational, that the nosebox insert was not bypassed, or that wiring was free of corrosion or damage.

Vendor Compliance: The vendor (TA) did not follow the prescribed LCM troubleshooting procedure. There is no indication the Phillips Connect TechAssist app was used — the notes make no mention of it, and no app completion screenshot was provided. The technician's note ('ALL LIGHT CIRCUITS WORK WITH GOOD VOLTAGES NO ISSUE WITH TRAILER THANK YOU') is a generic, non-specific dismissal that does not reference any of the required feedback categories (e.g., 'no defect found (confirmed with PCT)'). The abbreviated 'pv' notation at the end appears to be a standard pre-verification or lot check notation, not a structured diagnostic outcome. Overall, vendor compliance with the LCM troubleshooting protocol is rated as non-compliant.

Repair Summary: No repairs were made to the lighting system. The line items billed on this work order are entirely unrelated to the faulted BLACK circuit: a TPMS speed sensor activation, standard service labor, a shop supply/environmental fee, and lot service hourly labor. None of these parts or labor codes correspond to lighting components, wiring, or nosebox work. The alerting circuit — BLACK (Clearance / License Plate) — was not addressed in any documented repair action. It is unclear whether the technician even physically inspected the clearance or license plate lights.

Key Concerns: There are several serious concerns with this work order. First, the billed line items are entirely mismatched to the alert — TPMS sensor work has no bearing on a lighting circuit fault, raising questions about whether this trailer was correctly identified or whether the work order was used to bill unrelated services. Second, zero photos were submitted despite explicit procedural requirements. Third, the PCT/TechAssist app was not used, meaning the 'no defect found' conclusion cannot be classified as 'confirmed with PCT' — it must default to 'not confirmed with PCT,' which leaves the alert unresolved. Fourth, the generic technician notes suggest a cursory lot-level check rather than a structured LCM diagnostic. This work order should be flagged for vendor follow-up, and the trailer should be re-queued for a proper LCM inspection using the TechAssist app with full photo documentation.