LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a 'Defect Detected' alert on the GREEN (Right Turn) circuit for trailer V570308 at site CMH1. Based on the available evidence from this work order, the sensor result is rated Inconclusive with only 35% confidence. The technician claims all lights are working as they should, which would suggest a false positive or a transient fault that self-cleared — however, the complete absence of required verification steps (PCT app, photos, TechAssist screenshots) means there is no reliable evidence to either confirm or dismiss the original alert. The LCM system's alert cannot be validated or invalidated without proper diagnostic documentation.

Photo Evidence: No photos were provided with this work order. The LCM troubleshooting procedure explicitly requires photos of each light illuminated in the circuit, 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 deliverables were submitted. The absence of photographic evidence is a critical compliance failure and means the reviewer has no visual confirmation of circuit condition, nosebox integrity, or light operability at the time of inspection.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure in any meaningful way. There is no mention of the Phillips Connect TechAssist app being used, no TechAssist completion screenshot, no circuit-by-circuit photo documentation, and no structured feedback using the required defect categories (e.g., 'no defect found (confirmed with PCT)'). The technician's notes are informal and vague ('lights working like they should be'), and while they mention checking the 7-way and nosebox for tight wires and correct power on all pins, this falls well short of the systematic PCT-guided verification required. The outcome was marked as 'no defect found (not confirmed with PCT)' — the weakest possible resolution category — which reflects the lack of proper procedure adherence.

Repair Summary: No repairs were made to the lighting system or the alerting GREEN (Right Turn) circuit. Notably, the line items billed on this work order are entirely unrelated to lighting diagnostics: they include a tire pressure sensor activation (AMAZON PCT SENSOR), standard service labor at 0.1 hours, a shop supply/environmental fee, and lot service hourly labor billed under a 'Warranty' failure code. Not a single line item corresponds to any lighting component, wiring repair, or connector work on the GREEN circuit. This is highly irregular for a work order generated from a lighting circuit alert and suggests the vendor may have used this WO as a catch-all for unrelated charges or performed minimal effort on the actual lighting complaint.

Key Concerns: There are multiple significant concerns with this work order. First, the complete absence of required photos and PCT app usage constitutes a full compliance failure against the stated troubleshooting procedure. Second, all billed line items are unrelated to lighting — a tire sensor activation and lot labor charges on a lighting circuit WO is a serious billing integrity flag that warrants review. Third, the technician's notes, while claiming no fault found, provide no structured diagnostic evidence to support that conclusion, making the LCM sensor alert unresolvable. Fourth, the 'LOT SERVICE HOURLY LABOR' line item billed under 'Warranty' failure code is inconsistent with the nature of this alert-driven work order. This WO should be flagged for vendor accountability review, and the trailer may warrant a follow-up inspection with proper PCT verification to confirm the GREEN circuit is truly fault-free.