LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM sensor generated alerts for 'Check LCM Ignition Fuse' and 'Battery voltage is high,' both visible on the truck's dashboard display in the submitted photo. These alerts indicate a systemic power issue affecting the LCM module rather than a specific, isolated lamp circuit failure. The faulted circuit is listed as unknown, which is consistent with a fuse or voltage anomaly disrupting overall LCM function. Confidence is moderate (62%) that a real defect existed — the fuse replacement suggests something was physically wrong — but the true root cause and whether it affected a lighting circuit remain unconfirmed.

Photo Evidence: Only one photo was submitted, showing the truck's instrument cluster/dashboard with two active pop-up notices: 'Check LCM Ignition Fuse at n...' and 'Battery voltage is high.' This photo documents the alert condition but provides no evidence of lighting circuit inspection. There are no photos of any trailer lamps illuminated, no nosebox wiring photo, and no TechAssist app screenshot. The photo evidence is entirely insufficient for validating a lighting defect or confirming a repair.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure. There is no indication the Phillips Connect TechAssist (PCT) app was used, no photos of any of the five trailer light circuits were provided, and no nosebox inspection photo was submitted. The technician notes are minimal ('CHECK LCM FUSE/Battery vol is high') and do not reference any of the required feedback categories from the troubleshooting procedure. The one-click Connect number is listed, suggesting some awareness of the system, but no documented app-guided inspection occurred.

Repair Summary: Two line items were billed: a body inspection (no problems found) and replacement of a cube fuse in the lighting system (failure listed as 'Broken'). The cube fuse replacement is consistent with the 'Check LCM Ignition Fuse' alert and represents a plausible corrective action. However, the high battery voltage concern — which can cause LCM false alerts and potentially damage the module — does not appear to have been addressed or documented as resolved. No specific lamp circuit was identified as the alerting circuit, and no circuit was confirmed repaired.

Key Concerns: Several significant concerns exist with this work order. First, the 'Battery voltage is high' fault was not addressed or explained — this is a notable issue as overvoltage can cause LCM module damage and may be the root cause of the fuse failure or recurring alerts. Second, the faulted circuit field is blank/unknown, which means there is no way to confirm the correct circuit was repaired. Third, no PCT app was used, meaning no verified green status was achieved for any of the five circuits. Fourth, the photo documentation is completely non-compliant with only a dashboard screenshot submitted. This work order lacks the documentation necessary to close out an LCM alert with confidence, and the battery voltage issue should be escalated for further investigation.