Mobile Service · I-35 & I-70 · Eastern Kansas
7-way pigtails, wiring harness, ABS sensor wiring, and basic diagnostics. Roadside service across eastern Kansas, 24 hours a day.
Call 866.769.2580 Send a Request →7-way trailer connector replacement at the tractor pigtail and the trailer nose box. Wiring harness splicing and re-pinning. Ground point cleanup at the chassis and bulkhead. ABS sensor wiring at the wheel ends. Fuse, relay, and circuit breaker swaps. Basic diagnostics with a multimeter and test light to trace open circuits, shorts to ground, and high resistance connections.
Written notes on what we found and what we replaced are available on request.
Everything past the firewall on a tractor and everything on the trailer runs on a thin set of copper wires that vibrate for hundreds of thousands of miles. When a 7-way connector pin pushes back into the housing, the trailer goes dark. When a ground stud corrodes at the rear cross member, the tail lamps flicker with the turn signals. When the ABS sensor wire chafes through at a brake hose clamp, the warning lamp will not extinguish above 5 mph. Each of these is a small fault that strands a truck.
Trailer lights flickering or dim after hookup. ABS warning lamp on the dash that will not clear. A 7-way pigtail that is bent, melted, or corroded green. A circuit that pops a fuse the moment the trailer is plugged in. Marker lights that work when the headlights are off and die when the running lamps are on. We get all of these from drivers parked on I-35, I-70, and at the lots and yards in between.
Lighting circuits feed required lamps under FMCSA 393.9 and 393.11, and inoperative required lighting is an out of service item. The ABS warning lamp is required under FMCSA 393.55 and must not stay illuminated above 5 mph in normal operation. An ABS lamp on at inspection is a writeup even when the brakes themselves are fine. Repairing the wiring is often the path back to a clean inspection.
Pricing depends on the fault, parts, and travel distance. Tell us the symptoms and your location. We will quote on the call.
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