LCM Alert Validation

Confidence

Failure Category

Wiring

Subcategory

Smart7 - Wiring in Smart7

Sensor Verdict: The LCM alert on the GREEN (Right Turn) circuit is assessed as 'Defect Detected' with moderate-high confidence (78). The technician explicitly noted finding a loose GREEN post at the nosebox, which is a recognized electrical fault capable of causing intermittent or full circuit failure on the right turn circuit. This mechanical finding is consistent with what the LCM sensor would flag as an anomaly — a loose connection produces irregular resistance or voltage drop that the sensor interprets as a circuit fault. Confidence is not higher due to the absence of PCT app verification, no photographic evidence, and line items that do not corroborate a lighting repair.

Photo Evidence: No photos were provided with this work order. There are no images of individual lights illuminated, no nosebox wiring photo, and no TechAssist app screenshot showing the 'Verified' green status across all five circuits. This is a complete documentation failure relative to the LCM troubleshooting procedure requirements. Without photographic evidence, it is impossible to independently confirm the repair was completed correctly, that all lights in the circuit are functioning, or that no secondary damage exists in the wiring harness or nosebox.

Vendor Compliance: The vendor (TA) did not follow the LCM troubleshooting procedure in any meaningful way. The Phillips Connect TechAssist app was not used, no PCT completion screenshot was provided, and none of the required photographic documentation was captured. The technician's notes are brief and informal, and while they do identify a plausible root cause (loose GREEN post), they do not reference the structured feedback categories required by the procedure (e.g., 'damaged connector,' 'missing nut in nosebox,' 'wiring damage'). The note does state all lights were verified working after the repair, but this is an unsubstantiated verbal claim without app or photo confirmation.

Repair Summary: The repair performed was tightening the loose GREEN post and all screws in the nosebox area. This is a low-complexity, no-parts repair that is consistent with the 'damaged connector' subcategory (loose terminal/post). No lighting components were replaced. However, the line items billed are entirely misaligned with the repair described — they include an AMAZON PCT Sensor Activation (tire/speed sensor), Standard Service Labor, Shop Supply Fee, and Lot Service Hourly Labor. None of these line items reference lighting, nosebox work, or LCM circuit repair. This creates a significant discrepancy between the narrative repair and the billed work, and the PCT sensor activation line item may be a billing error or a completely unrelated service bundled into this work order.

Key Concerns: There are multiple red flags on this work order. First, the line items do not match the described repair — no lighting labor code was used, and a tire/sensor activation charge was billed under a lighting WO, which suggests either a billing error or that unrelated work was rolled into this order. Second, the complete absence of photos and TechAssist app usage is a clear vendor compliance failure that should be addressed with TA. Third, without PCT verification, there is no objective confirmation that all five circuits are functioning correctly post-repair, meaning a latent defect on another circuit could go undetected. Fleet maintenance reviewers should follow up with TA to obtain proper documentation, clarify the billing discrepancy, and consider issuing a compliance reminder regarding the LCM troubleshooting protocol.