LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Lighting - Failed Light

Sensor Verdict: The LCM system generated a RED (Brake) circuit alert on trailer GV2501285 at site DEN4. Based on the available evidence, the sensor result is classified as Inconclusive with a confidence level of 35. The technician's verbal claim of 'all circuits working fine' contradicts the alert, but no supporting evidence — such as a TechAssist verification screenshot or illuminated light photos — was submitted to validate that finding. The absence of any documentation means the sensor alert can neither be confirmed as a true defect nor definitively ruled out as a false positive.

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 completion screenshot showing a green 'Verified' status beside each of the 5 circuits. None of these were submitted. This is a significant documentation failure that prevents any independent verification of the trailer's lighting condition at the time of inspection. Without photo evidence, there is no way to assess bulb condition, connector integrity, nosebox wiring health, or the actual circuit status.

Vendor Compliance: Vendor compliance with the LCM troubleshooting procedure is rated as non-compliant. The technician stated they used the Phillips app, but provided no screenshot confirming successful verification of all five circuits. No photos were attached. The technician notes are informal, contain multiple spelling errors, and do not reference any specific observation category from the required feedback list (e.g., 'no defect found (confirmed with PCT)'). The note 'GTM: Unit flipped before actioning' is also a concern, as it suggests the unit's status may have been administratively closed before proper diagnostic steps were completed. The troubleshooting procedure was not followed as instructed.

Repair Summary: No repairs were made to the RED (Brake) circuit or any lighting component. The line items submitted are entirely unrelated to the faulted circuit: a speed sensor activation (categorized under tire pressure monitoring), standard service labor, shop supply/environmental fee, and lot service hourly labor. Two 'LITE MECHANICAL' indirect charge entries appear without quantities or costs and are vague. There is no evidence that any lighting part was inspected, replaced, or repaired. The alerting circuit was not addressed in any documented capacity.

Key Concerns: Several red flags are present in this work order. First, the unit was reportedly 'flipped before actioning,' meaning its active/healthy status may have been changed administratively rather than as a result of verified repairs — this is a procedural shortcut that undermines the integrity of the LCM system. Second, the line items submitted include a PCT sensor activation under the tire/TPMS category, which is mismatched with the lighting alert and raises questions about whether the correct trailer or alert was being addressed. Third, the complete absence of photos and TechAssist documentation makes this work order unverifiable. Fourth, the faulted RED (Brake) circuit — a safety-critical system — received no documented corrective action. This work order should be flagged for vendor follow-up, and the trailer should be re-inspected with full photo and TechAssist documentation requirements enforced.