LCM Record — V560422

Defect Detected

72%

Confidence

Failure Category

Lighting

Subcategory

Lighting - Failed Light

Approved by Kevin Eisentrout

Work Order Details

Asset ID

V560422

Site

PDX9

Vendor

COX

Circuit

GREEN (Right Turn)

Date Actioned

2026-04-27T22:08:10+00:00

Week

18

amz-id

02968677

Relay Garage

Open in RG →

AI Deep Dive Analysis

Sensor Verdict: The LCM sensor issued an alert on the GREEN (right turn) circuit of trailer V560422. Based on the vendor's findings, the GREEN circuit was tested and found to be functioning properly at the time of inspection. The sensor alert therefore did not directly correlate to the GREEN circuit being faulted at the time of service. However, a legitimate lighting defect — an inoperative brake strobe light on the RED circuit — was discovered during the multi-circuit walkthrough. Confidence is moderate (72) because it is plausible the GREEN circuit had a transient fault (e.g., intermittent short) that cleared before the vendor arrived, or the LCM system detected a system-level anomaly that manifested most visibly in the strobe/brake circuit. The sensor did successfully prompt a service visit that uncovered a real defect.

Photo Evidence: The attached photos include exterior shots of trailer V560422 (rear swing doors, front nose area, and the nosebox wiring compartment), a TechAssist app screenshot showing sensor status, and an underside shot of what appears to be a door sensor or bracket-mounted component. Photo 1 (TechAssist app) shows the Light Circuit sensor as 'Verified' with a green checkmark, while the Door sensor and TPMS sensor show red broken-link icons indicating they could not be found by the gateway. Photos 8 and 10 show the rear of the trailer with what appears to be an amber/orange light illuminated in the undercarriage center position — consistent with the brake strobe being activated during testing. Photo 9 shows a close-up of a door-mounted sensor bracket. Critically, there are no individual photos of each of the five light circuits illuminated as required by the LCM troubleshooting procedure, and no full TechAssist completion screenshot showing all five circuits with green 'Verified' status is present.

Vendor Compliance: The vendor (COX) partially followed the LCM troubleshooting procedure. They did connect to the TechAssist app and walked through each of the five circuits (GREEN, RED, YELLOW, BROWN, BLACK) as evidenced by the labor notes. However, compliance falls short in several respects: (1) no photos of each individual circuit illuminated were submitted; (2) the TechAssist app screenshot provided (Photo 1) does not show a full 'all circuits verified' completion screen — it shows the Light Circuit as verified but the Door and TPMS sensors as faulted/unverified; (3) the nosebox photo (Photo 4) shows the wiring box open but does not clearly document the state of the LCM insert or connections in sufficient diagnostic detail; and (4) the vendor did not provide a specific feedback category from the required list for the GREEN circuit (e.g., 'no defect found — confirmed with PCT'). The procedure was conducted but documentation is incomplete.

Repair Summary: The sole repair made was the removal and replacement of the brake strobe light, which is associated with the RED circuit — not the GREEN (right turn) circuit that triggered the LCM alert. The vendor confirmed the strobe was inoperative, replaced it, and retested it successfully. No parts brand is documented in the line items (listed only as 'Placeholder - Details to Follow'), making it impossible to confirm compliant brand usage — hence marked 'NO' for compliant brand pending documentation. The GREEN, YELLOW, BROWN, and BLACK circuits were tested and found operational with no repairs needed. The alerting circuit (GREEN) was not repaired because no fault was found on it at the time of service.

Key Concerns: Several concerns are worth flagging for this work order. First, there is a circuit mismatch — the LCM alerted on GREEN but the defect was found on RED. This could indicate the original fault was transient or that the LCM system misidentified the circuit. Second, the Door sensor and TPMS sensor are both showing as 'gateway cannot find' in the TechAssist screenshot — these are open sensor faults that were apparently not addressed or escalated as part of this work order, which may require a follow-up. Third, parts documentation is missing entirely ('Placeholder - Details to Follow'), which prevents brand compliance verification. Fourth, the PV note references '@alabrick' authorizing the unit as 'AH' (Available for Hire), but the open Door and TPMS sensor faults raise a question about whether the trailer should have been fully cleared. The brake strobe repair appears legitimate and complete, but the overall work order documentation quality is below standard.

LCM Current Readings — All Circuits

RED (Brake)

GREEN (Right Turn) ALERTING

YELLOW (Left Turn)

BROWN (Marker)

BLACK (Clearance / License Plate)

Vendor WO Notes

Yard Location Update: ParkingSlip - PS590 --- RO#597810879 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 GREEN CIRCUIT AND EVERYTHING IS WORKING PROPERLY, NEXT TESTED THE RED CIRCUIT ONCE ACTIVATED BRAKES LIGHTS ALL WORKED EXCEPT THE STROBE LIGHT, BEFORE PROCEEDING THIS NEEDS TO BE REPLACED AND RE TESTED UNIT COMPLETED Labor Line 2: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- BRAKE STROBE LIGHT INOP CORRECTION- REMOVED AND REPLACED LIGHT AND TESTED AND NOW THE LIGHT IS WORKING PROPERLY UNIT COMPLETED Labor Line 3: COMPLAINT - SMART BOX DETECTED SHORT IN LIGHTING SYSTEM CAUSE- UNKNOWN CORRECTION- NEXT 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 WORKING PROPERLY --- PV --- verified - all repairs completed - per @alabrick unit can be flipped AH if vendor does not explicitly state unit needs dealer. Unit now AH