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 RED (Brake) circuit of trailer HV2307067. Confidence is moderate at 62% because, while the vendor ultimately declared no fault found, the photographic evidence reveals at least one inoperative tail/brake lamp lens on both the driver and passenger sides of the rear light cluster — specifically, one of the two round red lamps at each corner appears dark/non-illuminated in Photos 7, 11, and 14. This is consistent with a partial circuit fault that could trigger an LCM alert, suggesting the sensor may have correctly identified a real degradation event even if the technician did not formally diagnose it.

Photo Evidence: The photos provided include multiple views of the rear lamp clusters (Photos 1, 5, 7, 11, 13, 14), corner marker/ID lights (Photos 2, 12), roof clearance lights (Photos 3, 8, 10), amber side marker lights (Photos 4, 15), the license plate area and plate light (Photo 6), and the manufacturer data plate confirming unit identity (Photo 9). Critically, in Photo 7 (driver-side rear), the left-most round red lamp is clearly not illuminated — it shows only a dark lens with no active LEDs, while the adjacent lamp glows red. Similarly, Photo 11 shows one lit and one dark lamp on the opposite corner. Photo 14 provides a close-up of one such non-illuminated lamp alongside a lit one. This strongly suggests at least one inoperative brake/tail lamp per rear corner was present at the time of inspection. No TechAssist/PCT app screenshot is included in the photo set, and no clear nosebox wiring photo was provided. The photos also do not collectively confirm every required circuit lamp was illuminated and functional per the LCM protocol.

Vendor Compliance: The vendor did not follow the prescribed LCM troubleshooting procedure. The technician was instructed to use the Phillips Connect TechAssist app, photograph each light illuminated, provide a clear nosebox wiring photo, and submit a TechAssist completion screenshot showing green 'Verified' status for all 5 circuits. None of these requirements were met. The repair notes are vague ('Performed light campaign, no issues found'), and no feedback from the defined category list was selected. There is no evidence the PCT app was used or that PCT was contacted. The note 'verified and flipped to a/h with no open defects' suggests the technician self-cleared the unit without app-based confirmation.

Repair Summary: No repairs were made. The vendor logged a single placeholder line item with no parts listed. The RED (Brake) circuit was not formally addressed or confirmed clear via the required PCT verification process. No replacement lamps were documented, and no compliant brand assessment is applicable given no parts were installed. The work order was effectively closed without substantive corrective action on the faulted circuit.

Key Concerns: There are several significant concerns with this work order. First, photographic evidence appears to show at least one non-illuminated brake/tail lamp at both rear corners, which contradicts the 'no issues found' finding — this is a potential safety and compliance issue. Second, the vendor failed to use the TechAssist app or provide a PCT verification screenshot, making it impossible to confirm circuit integrity. Third, no nosebox photo was provided. Fourth, the placeholder line item suggests incomplete documentation. This work order should be flagged for vendor follow-up, and the trailer should be re-inspected with mandatory PCT app usage and photographic documentation of all five circuits fully illuminated.