LCM Alert Validation

Confidence

Failure Category

Lighting

Subcategory

Lighting - Missing Light

Sensor Verdict: The LCM alert on the RED (Brake) circuit is confirmed as a true positive with high confidence (92%). The technician found multiple broken pins inside the 7-way receptacle and broken wires in the harness associated with the middle/third brake light — both of which are directly consistent with a brake circuit fault that would trigger an LCM alert. The Phillips TechAssist app was used to verify all circuits upon completion, further corroborating the sensor's accuracy. No conflicting evidence or mismatched circuit colors were observed.

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 green 'Verified' beside each of the 5 circuits. None of these were provided. This is a significant documentation gap and represents a failure to meet the minimum photographic compliance standards. Without visual evidence, the repair outcome — while verbally confirmed — cannot be independently validated by a reviewer.

Vendor Compliance: Vendor compliance with the LCM troubleshooting procedure is partial at best. On the positive side, the technician did reference and use the Phillips TechAssist app to confirm all lights were operational at the conclusion of the repair ('Used Phillips App to confirm'). However, the vendor failed to provide any photos (illuminated lights, nosebox condition, or TechAssist verification screenshot), which are all explicitly required by the procedure. The technician's notes are informal and contain multiple typographical errors, suggesting the repair was completed competently but documented carelessly. The failure category reported ('wiring damage') aligns with the expected feedback categories, which is appropriate.

Repair Summary: Two distinct repairs were made to address the brake circuit fault: (1) the 7-way receptacle was replaced due to multiple broken pins — a Phillips-branded 16 726 7-way receptacle was used, which is a compliant part; and (2) a damaged section of harness wiring feeding the middle/third brake light was cut out, rerouted, and reconnected using butt splice connectors (Seal-A-Crimp 16-14 gauge). Labor charges include 0.5 hrs for the 7-way R&R, 0.8 hrs for lot/service labor, and a minor 0.1 hr standard service charge. There is also a line item for a PCT sensor activation (AMAZON PCT SENSOR ACTIVATION) with associated labor, which is somewhat unusual and may warrant review — it is unclear whether a PCT sensor replacement was actually necessary or if this was included incidentally.

Key Concerns: Several items merit follow-up. First, the complete absence of photos is the most significant compliance gap and should be flagged for vendor corrective action. Second, the PCT sensor activation line item is unusual for a brake light wiring repair — no narrative in the technician notes references a sensor replacement or PCT hardware issue, and the part is categorized under tire pressure/speed sensors, which is unrelated to the lighting repair. This line item should be reviewed for billing accuracy. Third, the trailer moved through three yard locations (PS555, DD147, WS343) before the repair was performed, which is normal workflow but worth noting in the context of tracking repair delays. Overall, the core repair appears sound and the sensor correctly identified a real defect, but documentation quality and the anomalous sensor line item are areas requiring vendor accountability.