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 HV2500437 at site CMH1. The sensor confidence is rated at 35% inconclusive, as the vendor claims no defect exists but has provided zero compliant evidence to support that conclusion. The absence of TechAssist verification and proper photos means neither the alert nor the clearance can be confirmed with reasonable certainty.

Photo Evidence: Only one photo was submitted with this work order, labeled 'MUDFLAPS.jpeg.' The image shows the underside rear of a trailer at a dock, depicting mudflaps, rear tires, and surrounding snowy/icy ground conditions. There are no illuminated brake lights, no rear turn lights, no clearance or marker lights, no license plate light, and no nosebox wiring photograph present. The photo does not document any portion of the lighting system in an illuminated or inspected state and is entirely non-compliant with the documentation requirements of the LCM troubleshooting procedure. It is unclear why this photo was submitted as it contributes no diagnostic value to the work order.

Vendor Compliance: The vendor (TA) failed to comply with the LCM troubleshooting procedure in multiple critical areas. The procedure explicitly requires: (1) use of the Phillips Connect TechAssist (PCT) app with a completion screenshot showing a green 'Verified' status beside each of the 5 circuits, (2) photos of each light illuminated, and (3) a clear photo of the nosebox wiring. None of these requirements were met. The technician notes vaguely reference use of the 'Phillips app' but provide no screenshot evidence. The feedback category used ('no defect found') should be classified as 'no defect found (not confirmed with PCT)' given the lack of app verification. The work order has zero line items, confirming no parts or labor were billed beyond what appears to be a minimal inspection.

Repair Summary: No repairs were made on this work order. No parts were replaced, no labor line items were submitted, and the alerting RED (Brake) circuit was not addressed with any documented corrective action. The vendor's position is that no defect exists, but this cannot be accepted as a valid clearance without PCT app verification. The faulted circuit remains unconfirmed as either repaired or genuinely fault-free.

Key Concerns: There are several significant concerns with this work order. First, the sole submitted photo is of mudflaps and undercarriage — completely irrelevant to a brake light circuit inspection — which raises questions about whether a thorough inspection was actually performed. Second, the PCT app was not used in a verifiable manner, violating the core requirement of the LCM troubleshooting SOP. Third, the technician notes are generic and lack specifics about what was observed on the RED circuit. Fourth, the LCM sensor alert on the RED (Brake) circuit is a safety-critical system, and clearing it without documented PCT verification is a compliance risk. This work order should be flagged for vendor follow-up, and the trailer should be re-inspected with full PCT app documentation before the alert is considered resolved.