LCM Record — WV2500913

Defect Detected

92%

Confidence

Failure Category

Lighting

Subcategory

light partial failure (portion of LEDs failed)

Pending Review

Work Order Details

Asset ID

WV2500913

Site

PDX9

Vendor

COX

Circuit

BLACK (Clearance / License Plate)

Date Actioned

2026-05-20T23:03:54+00:00

Week

amz-id

03020335

Relay Garage

Open in RG →

AI Deep Dive Analysis

Sensor Verdict: The LCM BLACK circuit alert correctly flagged a real defect with high confidence. The BLACK circuit governs license plate and clearance lights, and the technician confirmed the license plate light was partially failed (a portion of LEDs not functioning). The TechAssist app screenshot (Photo 39) shows the Black circuit status as 'Defect/s resolved' after repair, and Photo 27 shows a 'Verified' confirmation pop-up for the Light Circuit, providing strong corroboration that the sensor alert was valid and the defect was resolved.

Photo Evidence: The photo set is extensive but not fully comprehensive for all lights in the circuit. Photos 9, 12, 31, 35, and 42 show the license plate light area — notably, Photos 9 and 35 appear to show the license plate light in an older or un-illuminated state (dome-style incandescent-type fixture), while Photos 12, 31, and 42 show what appears to be a newer, smaller LED-style replacement light that is illuminated (white/clear light). This progression supports the technician's narrative of replacing the unit. Photos 2, 8, 16, 17, 28, 30, 36, and 43 document amber marker/turn lights illuminated on the trailer doors and sides. Photos 14, 15, 22, 23, 29, 32, 41, and others show the rear red stop/brake lights functioning with visible tire debris lodged in the light housings on both sides. Photos 19 and 21 show the open nosebox with complex wiring. Photos 27 and 39 are TechAssist app screenshots confirming circuit verification. Interior trailer shots (Photos 3, 25, 26, 33, 40, 44) and exterior top-rail shots (Photos 1, 6, 7, 10, 20) are also included. Notably, a dedicated illuminated photo of the clearance lights (the other component of the BLACK circuit) is not clearly isolated, which is a minor documentation gap.

Vendor Compliance: The vendor demonstrated solid compliance with the LCM troubleshooting procedure. They connected to the trailer via the Phillips Connect TechAssist app, systematically tested all five circuits (Red, Green, Yellow, Brown, Black), and provided TechAssist screenshots confirming verification. Photos of multiple illuminated lights are included. The nosebox wiring is photographed (Photos 19 and 21), though the nosebox photo shows a notably congested wiring arrangement that could warrant attention. The vendor followed the expected feedback protocol by identifying a 'light partial failure' category defect and documenting cause, correction, and complication.

Repair Summary: The defective license plate light was removed and replaced. A complication arose because the replacement light had a different plug configuration, requiring the technician to cut and reconnect the light harness using heat shrink connectors. This is an acceptable repair method, though it introduces a wiring modification that should be noted for future reference. The repair addressed the alerting BLACK circuit directly. No specific part number or brand is documented in the line items (listed as 'Placeholder - Details to Follow'), which is a documentation gap. All five circuits were re-tested and verified passing via the TechAssist app after the repair.

Key Concerns: Several items warrant attention. First, the rear light housings on both sides of the trailer (visible in Photos 14, 15, 22, 23, 29, 32, 41) show significant tire debris/recap material lodged between the tail light assemblies — this is a safety concern and potential OOS violation that does not appear to have been addressed or called out in the repair notes. Second, the nosebox wiring (Photos 19/21) appears overly congested and shows some discoloration/corrosion on terminals, which may have contributed to the original LCM alert and could cause future issues. Third, the line item is listed as a placeholder with no part details, which reduces traceability. Fourth, Photo 37 (Gateway Details) shows the Door√ sensor as 'Not Connected / Unverified' — this is a separate sensor issue that was not addressed and should be flagged for follow-up. Overall, the primary defect was correctly identified and repaired, but the ancillary findings suggest additional maintenance attention is warranted on this unit.

LCM Current Readings — All Circuits

RED (Brake)

GREEN (Right Turn)

YELLOW (Left Turn)

BROWN (Marker)

BLACK (Clearance / License Plate) ALERTING

Vendor WO Notes

Yard Location Update: ParkingSlip - PS315 --- RO#158212672 Labor Line 1: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- UNKNOWN CORRECTION- FIRST I ACTIVATED THE APP AND CONNECTED TO THE TRAILER, NEXT I FOLLOWED THE PROCEDURE AND STARTED WITH THE BLACK CIRCUIT ONCE ACTIVATED LIGHTS ALL WORKED EXCEPT THE LICENSE PLATE LIGHT PARTIALLY OUT, BEFORE PROCEEDING THIS NEEDS TO BE REPLACED AND RE TESTED Labor Line 2: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- LICENSE PLATE LIGHT CORRECTION- REMOVED AND REPLACED LIGHT AND RE TESTED COMPLICATION: NEW LICENSE PLATE LIGHT HAS DIFFERENT PLUGS. CUT AND RECONNECTED LIGHT HARNESS WITH HEAT SHRINK CONNECTORS. Labor Line 3: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- UNKNOWN CORRECTION- NEXT TESTED GREEN CIRCUIT AND EVERYTHING IS WORKING PROPERLY , TESTED THE YELLOW CIRCUIT NEXT AND EVERYTHING IS WORKING PROPERLY, NEXT TESTED THE BROWN CIRCUIT AND EVERYTHING IS WORKING PROPERLY AND LASTLY TESTED THE BALCK CIRCUIT SND EVERYTHING IS WOROKG PROPERLY --- PV --- Work/Repairs completed. Flipped unit to Active and Healthy.