LCM Record — GV2203454

Defect Detected

92%

Confidence

Failure Category

Lighting

Subcategory

Lighting - Failed Light

Approved by Kevin Eisentrout

Work Order Details

Asset ID

GV2203454

Site

PDX9

Vendor

COX

Circuit

YELLOW (Left Turn)

Date Actioned

2026-05-12T20:50:25+00:00

Week

amz-id

03001160

Relay Garage

Open in RG →

AI Deep Dive Analysis

Sensor Verdict: The LCM sensor alert on the YELLOW (Left Turn) circuit is confirmed as a valid defect detection with high confidence (92%). The technician's first observation upon connecting via the TechAssist app was that exactly half of the left turn light's LEDs were inoperative — a classic partial LED failure that would produce an anomalous current draw or circuit resistance reading consistent with the type of fault the LCM system is designed to detect. There is no indication of a false positive; the defect was real, localized to the alerting circuit, and was resolved through physical repair.

Photo Evidence: No photos appear to have been submitted with this work order. The LCM troubleshooting procedure explicitly requires photos of each illuminated light in the circuit, a clear image of the nosebox wiring, and a TechAssist app completion screenshot showing a green 'Verified' status beside all five circuits. None of these deliverables are documented here. The absence of photo evidence is a significant compliance gap and prevents independent visual verification of the defect, the repair quality, or the final system status. This also makes it impossible to confirm nosebox condition or whether any secondary wiring issues were present.

Vendor Compliance: The vendor (COX) partially followed the LCM troubleshooting procedure. On the positive side, the technician did connect to the trailer using the Phillips Connect TechAssist app and did follow a structured circuit-by-circuit testing sequence — YELLOW first, then GREEN, RED, BROWN, and BLACK — which aligns with the prescribed methodology. However, compliance is meaningfully incomplete: there are no photos of illuminated lights, no nosebox photo, and no TechAssist app completion screenshot showing verified status across all five circuits. The work order notes also contain vague language ('CAUSE - UNKNOWN') for the initial labor line despite the cause being identified in the subsequent line item (partial LED failure requiring replacement). The final labor line confirms all other circuits tested good, but this is documented only in narrative form with no supporting photographic or app-based evidence.

Repair Summary: The repair addressed the correct faulted circuit (YELLOW / Left Turn). The technician removed and replaced both the lamp assembly (PN 60272Y, $80.00) and the mounting bracket (PN 60720, $16.29). The use of PN 60272Y — a Phillips/Grote-style LED marker/turn lamp — is consistent with a standard LED replacement for this circuit type, though brand compliance with fleet spec should be verified against the asset's approved parts list. Post-repair testing confirmed the light is now functioning properly. All remaining circuits (GREEN, RED, BROWN, BLACK) were tested and reported as operational. The line items section lists only a placeholder entry, which means parts costs are noted in the labor narrative but not formally itemized in the billing lines — this could create invoicing or audit issues.

Key Concerns: The most significant concern is the complete absence of required photo documentation and TechAssist app verification screenshots. This is not a minor omission — it is a core requirement of the LCM troubleshooting procedure and is essential for audit trail integrity and quality assurance. Additionally, the line item section contains only a placeholder, suggesting the work order may not have been fully closed out in the billing system. The 'CAUSE - UNKNOWN' notation on Labor Line 1 is inconsistent with the findings documented in Labor Line 2 and should be corrected for accuracy. Finally, the light position should be confirmed against the asset's lamp map, as 'left turn' on a trailer rear typically corresponds to the curbside rear turn position — this should be verified with any available asset documentation or future inspection.

LCM Current Readings — All Circuits

RED (Brake)

GREEN (Right Turn)

YELLOW (Left Turn) ALERTING

BROWN (Marker)

BLACK (Clearance / License Plate)

Vendor WO Notes

Yard Location Update: ParkingSlip - PS579 --- RO#301912301 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 YELLOW CIRCUIT , HALF THE LIGHT IS INOP , BEFORE PROCEEDING, THIS NEEDS TO BE REPLACED AND RE TESTED Labor Line 2: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- LIGHT INOP AND BRACKET NEEDS REPLACED CORRECTION- REMOVED AND REPLACED LIGHT AND BRACKET, TESTED AND NOW THE LIGHT IS WORKING PROPERLY PN- 60272Y. $80.00 PN-60720 $16.29 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 RED CIRCUIT NEXT AND EVERYTHING IS WORKING PROPERLY, NEXT TESTED THE BROWN CIRCUIT AND EVERYTHING IS WORKING PROPERLY, NEXT TESTED THE BLACK CIRCUIT AND EVERYTHING IS WORKING PROPERLY UNIT COMPLETED --- PV --- V AH