LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Recently Replaced Light

Sensor Verdict: The LCM system generated a YELLOW circuit (Left Turn - curbside) alert on trailer V571096. Based on the available evidence, the sensor result is classified as Inconclusive with only 35% confidence. The vendor broadly states that Phillips Connect is working and all lights are operational, but there is no objective, app-verified data to confirm the alert was a false positive, nor is there documented repair activity that would confirm a real defect was found and corrected. The voltage readings captured across multiple multimeter photos (ranging from approximately 12.13V to 18.80V) suggest the electrical system was being probed, but these readings alone do not map clearly to a specific circuit verification outcome or defect diagnosis.

Photo Evidence: Ten of the eleven photos are either multimeter readings or general exterior trailer shots. The multimeter readings show varying DC voltages — 12.13V, 12.63V (×2), 12.47V, 12.54V, 18.80V — but none are labeled or contextualized to identify which circuit or connector they correspond to. The two exterior trailer photos (TC_09018, TC_09021) show the rear of trailer V571096 with license plate PE20032 visible and lights appearing to be intact, but no photos show individual lights actively illuminated during the inspection. Photo TC_09019 shows what appears to be wheel chocks placed under the trailer. Photo TC_09020 shows an interior view of the trailer near the nose/front area. Critically, there is no clear nosebox wiring photo, and the one app screenshot provided (IMG_9215) shows the Phillips Connect TechAssist Sensor Details screen with all five circuits (Red, Green, Yellow, Brown, Black) displaying 'No data — The system cannot successfully precheck this circuit', despite each showing a 'Verified' badge. This is a significant red flag indicating the PCT app was unable to communicate with or validate any of the circuits at the time of inspection.

Vendor Compliance: The vendor did not comply with the LCM troubleshooting procedure. The required steps include: (1) using the Phillips Connect TechAssist app to verify all five circuits with green 'Verified' status and actual circuit data — the app screenshot shows 'No data' for all circuits, meaning no successful precheck was completed; (2) photographing each light illuminated individually — this was not done; (3) providing a clear nosebox wiring photo — not provided; and (4) selecting a specific feedback category from the required list. The vendor notes are generic and do not reference a specific defect category, root cause, or corrective action. The work order has no line items, further confirming no substantive repair was performed or documented.

Repair Summary: No repairs were made. No parts were replaced and no labor line items were submitted. The vendor's note implies a 'no defect found' outcome, but this was not confirmed through the required PCT app process. The alerting YELLOW (Left Turn) circuit was not specifically addressed or verified through proper diagnostic means. Given that the TechAssist app returned 'No data' for all circuits, it is possible there is a connectivity or communication issue between the app/device and the LCM sensor itself, which could explain persistent alerts without an obvious physical lamp defect.

Key Concerns: There are several major concerns with this work order. First, the PCT TechAssist app screenshot (IMG_9215) shows 'No data' for all five circuits — this means the vendor was either unable to establish communication with the sensor or did not complete the app-based diagnostic correctly, yet the work order was closed as complete. Second, the multimeter voltage readings, while present, are uncontextualized and do not substitute for proper PCT app verification. Third, the 18.80V reading on one multimeter photo (TC_09024) is notably higher than the others and may indicate an anomaly worth investigating (possible charging system spike or measurement error). Fourth, there are no illuminated light photos for any circuit. Fifth, no nosebox photo was provided. This work order should be flagged for vendor non-compliance, potential re-inspection, and follow-up to determine why the PCT app could not complete circuit prechecks — which may itself be indicative of an underlying Smart 7 connector or LCM insert issue.