Defect Detected
92%
Confidence
Failure Category
Smart 7
Subcategory
Smart 7 damaged/replaced
Pending Review
Work Order Details
Asset ID
V565328
Site
IGQ1
Vendor
TA
Circuit
YELLOW (Left Turn)
Date Actioned
2026-05-19T17:42:34.462000+00:00
Week
21
amz-id
0404143619
Relay Garage
AI Deep Dive Analysis
Sensor Verdict: The LCM yellow circuit (Left Turn) alert on trailer V565328 was valid with high confidence (92%). The technician's investigation revealed that all individual light circuits were producing crossed signals during testing, which is a clear electrical fault consistent with what an LCM sensor would detect as anomalous behavior on any circuit. The root cause was identified as a damaged Smart 7 nosebox — specifically, the thread inserts had been overtightened during original installation, causing them to break free and making the receptacle impossible to remove safely. A Phillips Connect ticket (#130521) was opened, confirming the severity of the nosebox issue. After replacement of the Smart 7, a secondary defect — an inoperative Grote 3rd brake lamp — was also discovered and repaired. The LCM sensor correctly flagged a real system-level electrical defect.
Photo Evidence: The provided photos document the repair process comprehensively. Photos TC_07476 and TC_07477 show the nosebox interior before and after work, with TC_07476 displaying the Phillips Connect Smart 7 unit in place and TC_07477 showing the open nosebox wiring in a disorganized but accessible state. TC_07481 shows the nosebox wiring in greater detail. TC_07480 shows the new Smart 7 unit's label/IMEI sticker being affixed. TC_07487 shows a multimeter reading voltage at the wiring, confirming electrical diagnostics were performed. TC_07489 shows the back of a removed marker light assembly. Multiple photos document lights illuminated: amber marker/clearance lights (TC_07490, TC_07492/32, TC_07494, TC_07499), red brake/stop lights (TC_07491, TC_07493, TC_07495, TC_07497, TC_07498), a red side marker (TC_05619, TC_05618), amber LED replacement (TC_05617), and rear light cluster (TC_07482, TC_07496). App screenshots IMG_7797 and IMG_7821 show Sensor Details from the TechAssist app — the first showing all circuits as 'Not verified' (before testing), and the second showing all five circuits as 'Verified' post-repair. IMG_7806 shows the Red Circuit Verification test summary noting a defect found in Rear Trailer Lights that could not be repaired on first visit (follow-up required), which aligns with the Grote 3rd brake lamp needing a return trip. TC_07503 and TC_07500 show front clearance lights on the trailer corners. TC_07501 and TC_07502 show the rear door area and license plate. TC_07485 and TC_07488 show the brake light assembly being removed and a new LED lamp unit being held. While coverage is broad, not every lamp in the yellow (left turn) circuit is individually documented as illuminated in turn-signal mode — most photos show running/brake mode illumination — hence 'Yes, but not all lights in circuit.'
Vendor Compliance: The vendor (TA) demonstrated solid compliance with the LCM troubleshooting procedure. The TechAssist app was used throughout — sensor pairing was confirmed on a call with PCT Tech Support (Ticket #PCT13560), and completion screenshots were provided showing all five circuits verified. The vendor photographed lights in an illuminated state across multiple positions and provided clear nosebox wiring photos. Specific failure feedback was communicated: 'crossed circuits on all individual circuits,' 'Smart 7 damaged,' 'thread inserts broken,' and 'Grote 3rd brake lamp inop.' These align well with the required feedback categories (damaged connector, wiring fault, light failure). The two-visit repair structure was documented with updates, and a Phillips tech support ticket was opened for the Smart 7 issue — all indicators of thorough troubleshooting. Minor gap: feedback was not explicitly matched to a single standard category label from the defined list, though the descriptions are functionally equivalent.
Repair Summary: On the first visit, the technician diagnosed crossed circuits and attempted to replace the 7-way receptacle, but found the thread inserts had seized due to overtightening, making removal impossible without destroying the Smart 7 housing. A Phillips Connect support ticket was opened. On the second visit, the Smart 7 was successfully removed and replaced (part: SMART 7 NOSE BOX, $827.99), and the new unit was paired to the trailer via PCT on-call support. During LCM verification, the Grote 3rd brake lamp was found inoperative — voltage was confirmed present at the lamp (12V), indicating lamp failure rather than wiring. A return visit delivered a replacement Grote lamp, which was installed and tested across brake and all circuits, then mounted with rivets. All five circuits were verified green in the TechAssist app. The Smart 7 was also noted to have been held shut by only one rivet, which was corrected. Parts replaced: Smart 7 nosebox, Grote 3rd brake lamp, 2 rivets. Labor spanned multiple visits.
Key Concerns: The estimate for the Smart 7 nosebox ($1,170.06 total, $827.99 part) was initially rejected for being above expected cost, then approved without change after vendor pushed back — this pricing should be benchmarked against standard parts cost for future reference. The Smart 7 being held shut by a single rivet suggests prior poor workmanship or a missed defect from a previous repair. The 'crossed circuits' finding is unusual and may indicate either a wiring harness issue inside the nosebox or a pre-existing fault that the Smart 7 hardware was masking; the root cause of the crossing was not explicitly documented beyond blaming the Smart 7. All circuits were ultimately verified green via TechAssist, the Grote lamp was replaced, and the trailer appears to have been returned to full compliance. No mismatched circuit color issues between the alert and the repair — the yellow circuit alert appropriately triggered discovery of a system-wide Smart 7 failure.
LCM Current Readings — All Circuits
RED (Brake)
GREEN (Right Turn)
YELLOW (Left Turn)
ALERTING
BROWN (Marker)
BLACK (Clearance / License Plate)
Vendor WO Notes
PCT TRAINING REQUIRED Yellow circuit alert detected. Please use Phillips Connect TechAssist app (available in app store) to troubleshoot lighting system. Please report feedback on observations during troubleshooting and steps taken for correction. Feedback options should include, but not limited to: full light circuit failure, light missing, damaged light, damaged connector, light failure, light partial failure (portion of LEDs failed), light dim, light unplugged, wiring damage, wiring installed incorrectly, corrosion in wiring, missing nut in nosebox, LCM insert bypassed in nosebox, no defect found (confirmed with PCT), no defect found (not confirmed with PCT). Please include a supporting photo of each light on trailer while illuminated and clear picture of nosebox wiring. Include screenshot from TechAssist app at completion screen which shows green “Verified” beside each of the 5 circuits.
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Yard Location Update: ParkingSlip - PS1022
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One-click Connect Number:
+18007841691,,,1553,,,6571
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TECH WILL BE OSNIET TO COMPLETE MAG TA
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WE ARE GOING TO HAVE TO SOURCE PARTS WITH VENDOR WE GIVE A UPDATE AS SOON AS WE HAVE ONE J F TA COMPLAINT LCM PILOT CAUSE TBD CORRECTION CHECKED TRAILER AND FOUND WHILE TESTING LIGHT CIRCUITS WAS GETTING CROSSED CIRCUITS ON ALL INDIVIDUAL CIRCUITS WENT TO REMOVE RECEPTACLE TO REPLACE BOTH BOLTS WOULD ONLY ROTATE WHEN INSTALLED ORIGINALLY OVERTIGHTENED THREAD INSERTS BROKEN FREE CANNOT REMOVE WITHOUT BREAKING SMART SEVEN CALLED PHILLIPS AND GOT TICKET NUMBER FOR SMART SEVEN TICKET NUMBER 130521 SIDE NOTE NOTICED THE SMART SEVEN WAS HELD SHUT BY ONE RIVET THANK YOU JW
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ESTIMATE TECH WILL RETURN TOMORROW TO COMPLETE REPAIRS J F TA CONCERN LCM PILOT NEEDS SMART 7 CAUSE SMART 7 DAMAGED GROTE 3RD BRAKE LAMP INOP CORRCTION REMOVED AND REPLACED SMART 7 CALLED PCT TECH SUPPORT TO ASSIGN NEW SMART7 TO TRAILER NEW SMART 7 NOW WORKING WITH TRAILER ALL SENSORS PARIED WITH NEW SMART7 ON CALL TICKET#PCT13560 PERFORMED LCM CHECK FOUND 3RD BRAKE LIGHT INOP REMOVED RIGHT BRAKE LIGHT TO CHECK CONNECTOR FOUND CONNECTOR LOOSE RECONEECTED BUT 3RD BRAKE LIGHT STILL INOP FOUND 12V GOING TO 3RD BRAKE LAMP TECH WLL NEED TO RETURN WITH NEW GROTE 3RD BRAKE LAMP THANKYOU AB 6HR FOR LABOR
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est
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Estimate rejection reason: Line item cost above expected
Details: SMART 7 NOSE BOX #77-6802, please correct the price and resubmit, rejected $1,170.06
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THIS IS STANDARD TA PRICING THIS WILL NOT BE CHANG ED J F TA
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EST
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Approved $1,170.06
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TECH WILL BE ON SITE TODAY TW TA
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Estimates
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Approved $1,170.06
. Copy that. Thanks for the update.
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Estimates Completed
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FINAL EST J F TA REVISIT WITH REPLACEMENT LIGHT IN HAND REPLACED OLD ONE AND TESTED THAT LIGHT WORKS ON BRAKE CIRCUIT AND ALL CIRCUITS MOUNTED WITH RIVETS THANK YOU JW
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EST
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APPROVED $1,201.93
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COMPLETE J F TA
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Defect Photos
