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 WV2500994. Based on the available evidence, the sensor result is rated as Inconclusive with 35% confidence. The vendor's claim of no defect found cannot be substantiated because the required Phillips Connect TechAssist (PCT) app verification was not documented, leaving the legitimacy of the original alert unresolved. There is no corroborating photographic or app-based evidence to confirm the circuit is healthy.

Photo Evidence: Two photos were submitted with this work order. Photo 1 shows the rear nose area of the trailer, including the Phillips Connect LCM nosebox with a visible green indicator light on the Smart 7 connector assembly, and a corrugated conduit running to the electrical plug. While the green indicator on the nosebox is a positive sign, it is not a substitute for a TechAssist app screenshot showing all 5 circuits verified. Photo 2 shows the Indiana license plate (PE26223) with the tail/brake light assembly illuminated in red above it, and there appears to be light reaching the ground near the plate area. However, no dedicated, clearly illuminated photo of the license plate light itself is provided, and photos of clearance lights, marker lights, brake lights, and turn signals are entirely absent. There is no TechAssist app completion screenshot showing green 'Verified' status beside each of the 5 circuits, which is a critical documentation gap.

Vendor Compliance: The vendor (TA) states they used the TechAssist app ('USED TECH ASSIST APP TO INSPECT ALL LIGHTS ON THIS UNIT'), but provided no screenshot evidence of app completion or circuit-by-circuit verification. The LCM troubleshooting procedure explicitly requires a TechAssist app completion screenshot showing green 'Verified' beside each of the 5 circuits, photos of each light illuminated, and a clear picture of the nosebox wiring. None of these requirements were fully met. The vendor notes are brief and non-specific, referencing no particular findings on the BLACK circuit and offering no feedback from the required defect category list beyond a general 'no issues found' statement. This represents a significant compliance shortfall.

Repair Summary: No repairs were made and no parts or labor line items were submitted. The vendor's position is that the trailer required no corrective action. While it is plausible that the LCM alert was a transient or false positive — particularly given the nosebox green indicator light visible in Photo 1 — the absence of documented PCT verification means this cannot be confirmed. The alerting BLACK circuit was not formally cleared through the required procedure.

Key Concerns: The primary concern is the complete absence of a TechAssist app verification screenshot, which is the single most important deliverable for this type of LCM-driven work order. Without it, there is no way to confirm whether the BLACK circuit fault was genuine and self-resolved, or whether an underlying issue (e.g., intermittent wiring fault, marginal LED, or corrosion) remains present. Additionally, the photo set is incomplete — only two photos were submitted when coverage of all illuminated light circuits plus a clear nosebox photo were required. The vendor's note, while appreciative in tone, lacks the technical specificity expected when responding to an LCM alert. This work order should be flagged for insufficient documentation and the vendor should be asked to return to the unit with a proper PCT verification and full photo set, or at minimum confirm the TechAssist session data from their app records.