Commercial trucks carry a lot more electrical load than a passenger vehicle — multiple battery banks, lift gate circuits, accessory loads, lighting that has to pass inspection. When something starts acting up, the fault is rarely where the symptom shows up. We test the system under real operating conditions and trace the actual cause before recommending parts.
Yes. The fault has to be present to be caught — we test the system under load and monitor the circuit while we drive or run the truck through its operating cycle.
Yes. Marker, brake, turn, backup, and ICC bar lighting are all covered. If the truck came in on a DOT failure, the repair includes documented corrective work.
Yes. Dual and multi-battery configurations, parallel and series, including isolators and battery management on rigs with house loads.
Both. Harness replacement is sometimes the right call on heavily corroded or chewed-up runs — but most damage is local, and a clean splice with proper sealing holds up. We pick the right fix per case and tell you why.