Recommended Trailer Electrical Maintenance Schedule

Implementing a proactive maintenance program for your trailer's electrical systems can significantly reduce downtime, extend component life, and ensure compliance with FMCSA regulations.

Daily Checks (Pre-Trip Inspection)

• Verify all lights are operational (headlamps, tail lamps, brake lights, turn signals, clearance lights)

• Check ABS indicator lamp during startup for proper function

• Inspect 7-way connector for damage or corrosion

• Ensure all wiring is properly secured

Monthly Maintenance

• Clean 7-way connections using electrical contact cleaner

• Inspect wiring harnesses for chafing, wear, or exposure

• Test all electrical circuits for proper voltage and ground

• Check mounting brackets for all electrical components

• Apply dielectric grease to electrical connections

Quarterly Maintenance

• Complete diagnostic scan of ABS system

• Inspect junction boxes for moisture intrusion or corrosion

• Load test auxiliary power systems (liftgates, refrigeration)

• Verify backup systems are operational

• Check ground straps for secure connections and corrosion

Annual Comprehensive Inspection

• Complete trailer electrical audit covering all systems

• Thermal imaging inspection to identify hot spots in wiring

• Replacement of aging components before failure

• Documentation for FMCSA compliance

• Software updates for electronic control modules

Carolina Trailer Repair & Fabrications offers customized maintenance programs tailored to your fleet's specific needs, from basic compliance inspections to comprehensive electrical system management. Our preventive approach saves you money by addressing issues before they lead to roadside failures or DOT violations.

Contact us today at 704-951-7756 or schedule service online at www.carolinatrailerrepair.com to keep your fleet running at peak performance.