LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a RED (Brake) circuit alert on trailer V569594. Based on the available evidence, the sensor result is rated Inconclusive with 42% confidence. The vendor found no active defect at the time of service, and the PCT app confirmed all circuits as 'Verified.' However, the possibility of an intermittent fault — which may have been real at the time of the alert but self-resolved or gone undetected — cannot be ruled out given the limited depth of the vendor's investigation and documentation.

Photo Evidence: The photo set includes rear tail/brake lights illuminated (TC_00156, TC_00158, TC_00157, TC_00158, TC_00155, TC_00161), side marker/clearance lights (TC_00154, TC_00162), nosebox wiring work (TC_09366), multimeter readings at the nosebox grommet area (TC_09367–TC_09371 showing ~12.1–12.2V and one reading of ~12.7V), trailer ID shots (TC_00151, TC_00163 — V569594 confirmed, and V56X visible), a license plate photo (TC_00159 — Indiana plate PE86468), a VIN/data plate (TC_00152 — Hyundai Translead, MFG 10/20), a rear doors/upper corner shot (TC_00160), and crucially, a PCT TechAssist app screenshot (IMG_9563) showing all five circuits (Red, Green, Yellow, Brown, Black) marked as 'Verified' with 'No defects.' The rear brake lights appear to be illuminated in multiple photos, suggesting they were functional at time of inspection. However, no photos clearly isolate just the RED brake circuit lights with unambiguous confirmation that each individual light in the full brake circuit was tested and illuminated. The nosebox interior photo (TC_09366) shows a technician working on the wiring, but no clear labeled 'after' shot of the completed nosebox configuration is provided.

Vendor Compliance: Vendor compliance is marginal. On the positive side, the PCT TechAssist app was used and a screenshot was provided showing all circuits verified green — this is the most critical documentation requirement and it was met. Multimeter readings were taken at the nosebox, showing approximately 12.1–12.7V, indicating power was present. However, the technician notes are extremely poorly written with multiple spelling errors and provide no specific diagnostic detail — there is no mention of which lights were individually tested, what the nosebox condition was, whether any connectors were inspected for corrosion, or what specifically was checked inside the box. The vendor did not clearly photograph each light in the circuit individually while illuminated in a structured manner, and no specific feedback category from the required list was explicitly stated in the notes. The instruction to 'include a clear picture of nosebox wiring' was only partially met.

Repair Summary: No repairs were made and no parts were replaced or listed on any line items. The vendor determined the system was operating as it should at the time of inspection. The alerting RED (Brake) circuit was not repaired because no active defect was identified. While the PCT app corroborates the no-fault finding at time of service, the lack of any corrective action means that if the original LCM alert was caused by an intermittent wiring issue, loose connector, or early LED degradation, that root cause has not been addressed.

Key Concerns: Several concerns are flagged for this work order. First, the vendor notes are of very low quality — barely legible, filled with typos, and lacking any meaningful diagnostic narrative; this is a documentation compliance failure. Second, there are no line items at all, which is consistent with no repair but also means there is zero labor accountability for the time spent. Third, the PCT screenshot (IMG_9563) does show 'No data' listed under several circuits including Red, Green, Yellow, Brown, and Black — while the circuits are marked 'Verified,' the 'No data' notation on the sensor panel warrants attention as it may indicate the sensor was not actively streaming live fault data at the time of the screenshot. Fourth, the multimeter readings, while showing nominal voltage, were taken at the nosebox grommets and do not constitute a full circuit integrity test. Fifth, two different trailer IDs appear in the photos (V569594 on TC_00151/TC_00163 and what appears to be a different trailer corner on TC_00160), which should be verified to ensure all photos belong to the same asset. Overall, while the PCT app result provides some confidence in a no-fault conclusion, the overall work order quality is below acceptable standards and a follow-up inspection may be warranted if the LCM alert recurs.