LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Lighting - Failed Light

Sensor Verdict: The LCM BLACK circuit alert (Clearance / License Plate) is assessed as 'Defect Detected' with 85% confidence. The technician's notes directly corroborate the sensor's alert by identifying a driver-side (DS) clearance light as inoperative. The sensor appears to have correctly flagged a genuine lighting failure on the BLACK circuit, and the repair notes indicate the issue was resolved. Confidence is not rated higher due to incomplete photographic documentation and the vendor's inability to use the PCT app to confirm circuit health post-repair.

Photo Evidence: Only one photo was submitted (MUDFLAPS.jpeg), which shows a mudflap and partial view of a rear axle/wheel area — this is entirely irrelevant to the clearance light repair or the BLACK circuit. There are no photos of the repaired clearance light illuminated, no photos of adjacent clearance lights energized, no nosebox wiring photo, and no TechAssist app screenshot showing green 'Verified' status across all five circuits. The photo documentation is wholly insufficient and non-compliant with the LCM troubleshooting requirements.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure. The technician explicitly stated 'PCT APP WILL NOT LOCATE TRAILER,' indicating the TechAssist app was either not used successfully or the trailer was not registered/visible in the system. No TechAssist completion screenshot was provided. Required photos of each illuminated light circuit are absent. The vendor notes do not reference any of the expected feedback categories from the LCM protocol, and no line items were submitted, making it impossible to verify the specific part replaced or confirm compliance with approved lamp brands.

Repair Summary: The repair involved identifying a bad DS clearance light, cutting out the defective unit, and wiring in a new replacement light, which was then verified as operational by the technician. The repair directly addresses the alerting BLACK circuit (clearance lamps), so the correct circuit was serviced. However, without line items, it is impossible to confirm what replacement part was used, its part number, or whether it is a compliant/approved brand. No labor or parts costs are documented, which is a billing and record-keeping concern.

Key Concerns: Several significant issues are flagged: (1) The PCT/TechAssist app could not locate the trailer — this may indicate a Smart 7 connectivity issue or an asset registration problem that should be investigated separately. (2) The submitted photo (mudflap) has no relevance to the repair performed, suggesting either the wrong photos were uploaded or documentation was treated as a formality. (3) No line items were submitted, leaving the repair unverified from a parts standpoint. (4) Without a TechAssist verified screenshot, there is no confirmation that all five circuits are healthy post-repair. This work order should be flagged for incomplete documentation and the vendor should be contacted to submit proper photos and clarify the PCT app connectivity issue.