LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM generated an alert on the RED (Brake) circuit for trailer HV2202225 at site DTW3. Based on the available work order data, this alert is rated Inconclusive with a confidence of 35%. The technician's notes claim all circuits are working properly and all voltages/nuts are tight in the Smart 7 nosebox, which would suggest a 'No Defect Found' outcome — but the complete absence of PCT app confirmation, photographic evidence, and relevant repair line items makes it impossible to validate this claim. The sensor may have correctly identified a transient or intermittent fault, or it may have been a marginal reading, but the vendor's response does not provide sufficient evidence to confirm or deny the alert.

Photo Evidence: No photos were provided or attached to this work order. Per the LCM troubleshooting procedure, the vendor was required to submit photos of each light illuminated, a clear picture of the nosebox wiring, and a TechAssist app screenshot showing a green 'Verified' status beside each of the 5 circuits. None of these deliverables are present. This is a significant documentation gap that prevents any independent verification of the reported 'no defect found' outcome and renders the work order non-compliant from a documentation standpoint.

Vendor Compliance: The vendor did not follow the prescribed LCM troubleshooting procedure. There is no indication that the Phillips Connect TechAssist app was used, no PCT call reference number was noted, and the technician's notes are vague ('TA ALL VOLTAGES AND NUTS TIGHT IN SMART 7 ALL CIRCUITS WORKING PROPERLY NO ISSUE FOUND') without referencing any structured diagnostic steps or feedback from the required category list. The procedure explicitly requires TechAssist app usage and a verified green status on all 5 circuits before a 'no defect found' conclusion can be accepted. This vendor response falls well short of those requirements.

Repair Summary: No repairs were made to the lighting system. Notably, the line items billed on this work order are entirely unrelated to the faulted RED (Brake) lighting circuit — they include a tire pressure sensor activation (AMAZON PCT SENSOR ACTIVATION), standard service labor for a speed sensor, a shop supply/environmental fee, and lot service hourly labor. None of these items correspond to any lighting diagnosis, wiring inspection, or lamp replacement. The labor billed (0.1 hrs standard service + 0.5 hrs lot hourly) appears to reflect minimal engagement with the actual lighting fault. No compliant brand assessment is applicable since no lighting parts were replaced.

Key Concerns: There are multiple red flags on this work order. First, the line items are completely mismatched to the alerting circuit — billing a tire pressure sensor activation against a brake light circuit alert is a serious discrepancy that warrants scrutiny. Second, zero photographic documentation was provided despite explicit procedural requirements. Third, the TechAssist app was not used, meaning there is no objective, system-verified confirmation that the RED (Brake) circuit is functioning correctly. Fourth, the technician's notes are unusually brief and generic for an LCM-driven diagnostic work order. This work order should be flagged for vendor follow-up to provide PCT-verified documentation, and the unrelated line items should be reviewed for potential mischarge. The LCM alert on this trailer should remain open or be re-dispatched until proper TechAssist verification with photographic evidence is submitted.