LCM Record — V509437

Defect Detected

97%

Confidence

Failure Category

Wiring

Subcategory

Wiring - Damaged Wiring

Approved by Kevin Eisentrout

Work Order Details

Asset ID

V509437

Site

DCA1

Vendor

Circuit

YELLOW (Left Turn)

Date Actioned

2026-05-11T21:58:46.179000+00:00

Week

amz-id

0409064135

Relay Garage

Open in RG →

AI Deep Dive Analysis

Sensor Verdict: The LCM alert on the YELLOW (Left Turn) circuit is confirmed as a legitimate defect detection with very high confidence (97%). The technician's own findings — an intermittent lamp connection caused by corrosion at the plug and a substandard bare-copper twisted-wire splice wrapped in tape — are classic root causes that would produce exactly the kind of intermittent voltage drop or resistance anomaly that the Phillips Connect LCM sensor is designed to flag. The sensor correctly identified a real and actionable fault on the left turn circuit rather than a false positive.

Photo Evidence: No photos were attached to 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 a green 'Verified' status beside each of the five circuits. None of these documentation requirements were fulfilled. The absence of photographic evidence means the repair cannot be independently verified, the condition of the nosebox and remaining circuits cannot be assessed, and compliance with the photo protocol cannot be confirmed. This is a significant documentation gap.

Vendor Compliance: The vendor (TA) did not comply with the prescribed LCM troubleshooting procedure. There is no indication that the Phillips Connect TechAssist (PCT) app was used — the technician references the 'Phillips Connect Lighting App' in passing as the complaint source but does not describe performing a guided TechAssist session, nor was a completion screenshot with five 'Verified' green circuits provided. The technician did conduct a physical inspection and functional test of the circuit, which is commendable, and the narrative does cover relevant failure feedback categories (corrosion in wiring, damaged connector, wiring installed incorrectly). However, without PCT app use and photos, the work order falls short of the required troubleshooting standard.

Repair Summary: The technician replaced one oval amber/amber 12-LED mid-trailer side marker/turn lamp (LED type confirmed by part number 'OVAL AMB/AMB MKR TURN 12LED'), installed a new 3-pin straight plug pigtail (dual function), and re-spliced the wiring harness using blue 16–14 AWG and yellow 12–10 AWG butt connectors. The root causes — corrosion at the lamp plug connection and an improperly made bare-copper twisted-wire splice — were both addressed. The repair directly targets the faulted YELLOW (Left Turn) circuit. The technician noted the remainder of the lighting system passed inspection. Parts used appear to be standard aftermarket components; no Grote-specific or Phillips-branded lamp compliance requirement was flagged in the work order instructions, so no brand concern is raised here.

Key Concerns: The most significant concerns are the complete absence of photos and the failure to use the TechAssist PCT app, both of which are explicit procedural requirements. The discovery of a bare-copper twisted-wire taped splice is a notable quality flag — this type of field repair suggests a prior technician performed a non-compliant fix that likely contributed to the current corrosion and intermittency issue, raising the possibility of a repeat or pre-existing condition. Fleet reviewers should consider whether this trailer has a history of lighting faults on this circuit. On the positive side, the actual diagnosis and repair appear thorough and well-matched to the LCM alert, and the technician did verify the full lighting system post-repair.

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 - PS677 --- AUTH TA COMPLAINT ALERT DETECTED ON YELLOW CIRCUIT CAUSE PHILLPS CONNECT LIGHTING APP CHECK REQUESTE D AES ADDITIOANLLY WHILE TESTING THE YELLOW CIRCUIT LE FT TURN SIGNAL CIRCUIT I FOUDN THAT LIGHT WORKED B UT WAS GOING IN AND OUT I FOUND THAT LIGHT CONNEC TION HAD CORROSION AND WAS CAUSING THE CIRCUIT TO DROP CONNECTION I THEN FOUND THAT THE HARNESS WAS BARE COPPER TWISTED TOGETHER AND THEN TAPED UP O REMOVED BAD CONNECTION AND RESPLICED WIRES CORRECT LY AND REPLACED LIGHT WHICH HAD CORRSION IN PLUG C ONNETION AS WELL I THEN REPLACED PLUG RECONNECTED CONNECITONS AND FOUND LIGHT WORKED THE REST OF TH E LIGHTING SYSTEM PASSED CHECK AES AES THANK YOU WORK IS COMPELTE --- AES THANK YOU TA