Truck & Trailer Electrical Diagnostics — Dallas, TX

Truck & Trailer Electrical Repair in Dallas, TX

Electrical faults are the ones that show up and disappear: a trailer light that works in the yard and quits on the road, a truck that starts some mornings and not others. At Bawa’s Truck & Trailer Repair in Dallas, we trace the circuit to find the real fault, so you are not paying for parts that were never the problem.

Call +1 (214) 400-4228 with the symptoms, or bring the unit to 4700 Irving Blvd #200, Dallas, TX 75247, Monday to Saturday, 8 AM to 6 PM.

What Is Electrical Diagnostics?

A truck or trailer is a web of wiring, fuses, relays, grounds, connectors and modules. Electrical diagnostics is the work of finding the one weak link in that web: a corroded connector, a chafed wire, a bad ground, a failing alternator or a module that has stopped talking.

Intermittent faults are the hardest, because the problem is gone when you pull into the shop. That is why we trace the circuit and test it under load instead of swapping parts and hoping.

Our Story

We Find What the Dash Cannot Tell You

Bawa’s has been repairing trucks and trailers in Dallas since 2011. Electrical calls are some of the most frustrating for drivers, especially when other stops have already taken a shot at it.

We start with the symptoms, test the circuit, and show you what we found. One driver told us on Google that we fixed his truck’s A/C in no time and with no extra charges, which is the kind of straight dealing we aim for.

  • 0 YRS

    Working in Dallas

  • 0 Days

    Open Monday to Saturday

  • 0 / 5

    Google Rating, 55 Reviews

Mechanic kneeling beside a red truck and a tractor chassis in a shop bay

Electrical Problem? Call Us.

Tell us the unit and the symptoms. Call +1 (214) 400-4228.

What We Do

Electrical Diagnostics and Repair

Tractors and trailers, in the shop or on the road where we can.

  • Wiring, Fuses & Grounds

    Chafed wires, blown fuses, corroded connectors and bad grounds traced and repaired.

  • Lighting & 7-Way Plugs

    Marker, brake and turn lights, pigtails and 7-way plug problems fixed.

  • Charging & Starting

    Batteries, cables, starters and alternators tested when the truck will not start or keeps dying.

  • Electrical Faults & A/C

    Fault codes behind warning lights and cab A/C electrical issues diagnosed.

Why Bawa’s

Trace It, Don’t Guess

  • Intermittent Faults

    We know how to chase problems that come and go.

  • Show and Tell

    We explain what we found and what it will take to fix it.

  • Parts Only When Needed

    We confirm the cause before recommending replacement parts.

  • Shop or Roadside

    Many lighting and wiring problems can be fixed where the unit is parked. Call and we will tell you.

What You Can Count On

Plain Answers, Fair Estimates

What to expect when you bring us an electrical problem.

  • Estimate First

    You will hear the likely cost before any repair work begins.

  • Honest Priorities

    We tell you what has to be fixed now and what can wait.

  • Open Communication

    Call or stop in during shop hours and we will tell you where your unit stands.

  • 15 Years in Dallas

    Repairing commercial trucks and trailers here since 2011.

How It Works

From Symptom to Fix

Three steps, no surprises.

  • 01

    Call or Bring It In

    Call +1 (214) 400-4228 and tell us what the unit is doing and when.

  • 02

    Trace the Circuit

    We test the wiring, connections and components to find the real fault.

  • 03

    Approve and Repair

    We explain what we found and what it costs. The repair begins once you approve it.

Common Symptoms

Electrical Problems We See Often

  • Lights that flicker or die

    Often a plug, connector or ground problem.

  • Fuses that keep blowing

    Usually a short or a failing component.

  • Cranks slowly or not at all

    Check batteries, cables and the starter.

  • Battery keeps going flat

    A charging problem or a drain somewhere.

  • Warning lights that come and go

    Intermittent faults need testing under load.

  • Trailer lights fail on the road

    Vibration finds weak connections.

Road Service

Lights Out Away From the Shop?

Lighting and wiring problems often can be fixed where the unit is parked. Call +1 (214) 400-4228 with your location and the symptoms, and we will tell you whether we can come to you or whether it needs the shop. We try to fix it on site first. If it cannot be repaired there, we can tow it to our shop for the repair. We do not offer towing to other locations.

Coverage

Areas We Serve

Serving commercial drivers and fleets throughout the Dallas–Fort Worth Metroplex and surrounding counties.

Cities & Communities

  • Dallas

    Primary Location

  • Irving

    ~15 min away

  • Fort Worth

    ~35 min away

  • Arlington

    ~25 min away

  • Garland

    ~20 min away

  • Mesquite

    ~18 min away

  • Grand Prairie

    ~22 min away

  • Plano

    ~28 min away

  • Carrollton

    ~22 min away

  • Lancaster

    ~20 min away

Road service within 50 miles of our shop, Monday to Saturday, 8 AM to 6 PM. Not sure if you are in range? Call us and we will tell you.

Customer Reviews

What Drivers Say on Google

  • Good fast service, they took my truck right away and fixed mh AC in no time with no extra charges. 100% recommend

    Anshu Sharma

    Google review

  • Great place of business Harry was very helpful and the owner was very nice and transparent

    Jeremy Cheatham

    Google review

  • Excellent friendly people work super fast and solve everything recommended at %100

    Reynaldo Otero

    Google review

How We Test

Where Electrical Faults Hide

PartTypical problemHow we check
7-way plug and pigtailCorrosion, loose pins, damaged cableVisual check and continuity testing
GroundsLoose or corroded ground pointsVoltage drop testing
Batteries and cablesWeak cells, corroded terminalsLoad and charging checks
Alternator and starterLow output, worn partsCharging output and cranking checks
Connectors and harnessesChafed wires, water getting inInspection and circuit tracing

FAQ

Electrical Diagnostics Questions, Answered

What electrical problems do you diagnose?

Wiring faults, lighting and 7-way plug problems, blown fuses, bad grounds, charging and starting issues, and electrical faults behind warning lights. Call +1 (214) 400-4228 with the symptoms and we will tell you how to get it in.

Why do my trailer lights keep going out?

Common causes include a worn or corroded 7-way plug, damaged wiring, a bad ground or a failing connection. Intermittent problems are the hardest, which is why we trace the circuit instead of replacing parts at random.

Can you fix a truck that will not start or keeps dying?

We can diagnose starting and charging problems, including batteries, cables, starters and alternators. Call with what the truck is doing.

Do you fix truck A/C electrical problems?

Yes. One driver wrote on Google that we fixed his A/C quickly and with no extra charges. Call with the symptoms and we will tell you what to expect.

How much does electrical diagnostics cost?

It depends on how hard the fault is to find, so we do not quote blind. Call us, describe the problem and we will give you a clear estimate before work begins.

What are your hours?

We are open Monday to Saturday, 8 AM to 6 PM, and closed Sunday. For anything outside those hours, call +1 (214) 400-4228.

About This Page

Bawa’s Truck & Trailer Repair has repaired trucks and trailers at 4700 Irving Blvd #200 in Dallas, TX since 2011, and customers rate us 4.7 on Google across 55 reviews. This page is general guidance, not a diagnosis. Every unit is different, so call +1 (214) 400-4228 and tell us what yours is doing.

Last updated October 26, 2026 · About us · Contact · Privacy

Contact Us

Tell Us What the Unit Is Doing

Share the unit, the symptoms and when it happens.

  • PHONE NUMBER:

    +1 (214) 400-4228
  • ADDRESS:

    4700 Irving Blvd #200, Dallas, TX 75247, United States
  • Mon-Sat 08:00AM-06:00PM

Request an Electrical Estimate

    Ready When You Are

    Get the Lights Back On

    Call +1 (214) 400-4228 or stop by 4700 Irving Blvd #200, Dallas, TX 75247, Monday to Saturday, 8 AM to 6 PM.

    Overnight parking, cross dock and load delivery are available. Call ahead.