LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a BLACK circuit alert on trailer V564201, indicating a fault in the Clearance/License Plate lighting circuit. Based on the available evidence, the sensor result is classified as Inconclusive with a confidence of 35%. The vendor's notation of 'no issues found' suggests a possible false positive or an intermittent fault, but this cannot be confirmed because the required Phillips Connect TechAssist (PCT) verification process was not completed. Without a green 'Verified' status for all five circuits documented in the PCT app, there is no credible basis to dismiss the sensor alert as erroneous.

Photo Evidence: No photos were provided with this work order. The LCM troubleshooting procedure explicitly requires photos of each light illuminated, a clear picture of the nosebox wiring, and a TechAssist app completion screenshot showing green 'Verified' status beside each of the 5 circuits. The complete absence of photographic documentation is a significant compliance failure. It is impossible to visually confirm circuit integrity, nosebox condition, connector health, or wiring status. This gap alone renders the work order non-compliant and the 'no issues found' conclusion unsupported.

Vendor Compliance: COX did not follow the LCM troubleshooting procedure as instructed. There is no indication that the Phillips Connect TechAssist app was used — the pct_app_used field is false, and no screenshot of verified circuit status was submitted. The vendor's repair notes are extremely sparse, referencing only a 'light campaign' with no detail on what was physically inspected, what lights were tested, whether connectors were checked, or what the nosebox condition was. The feedback provided does not align with any of the required feedback categories in a meaningful or verifiable way. The phrase 'no issues found at this time' implies only a cursory visual inspection, if that.

Repair Summary: No repairs were made. No parts were replaced — the only line item present is a placeholder ('Details to Follow'), which was never populated, suggesting incomplete administrative follow-through as well. The alerting BLACK circuit was not repaired, and no corrective action was documented. While a 'no defect found' outcome is a legitimate result, it must be supported by PCT app verification per the procedure, which is entirely absent here.

Key Concerns: Several red flags exist with this work order. First, the complete absence of photos and PCT app documentation makes it impossible to validate the vendor's 'no issues found' conclusion. Second, the placeholder line item was never resolved, indicating the work order may have been closed prematurely or administratively. Third, if the LCM sensor continues to alert on the BLACK circuit for this trailer, this work order provides no diagnostic baseline to reference. It is recommended that this trailer be re-dispatched for a properly documented LCM inspection using the PCT TechAssist app, with full photo compliance, before the sensor alert is dismissed as a false positive.