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Auto Electrical Services

auto electrical services need to be performed on this carWhen an electrical system issue arises with your vehicle, it can have significant consequences. Modern cars, trucks, and SUVs are reliant upon their electrical systems to start, operate windows and locks, power backup cameras, and maintain navigation systems, among other things. Repair and maintenance of modern vehicles always involve a computer diagnostic. At Lockett’s Auto Care, our auto electrical services and computer module repair in Catonsville are perfect for diagnosing and repairing electrical system issues quickly and effectively.

Pulse Width Modulation in Electrical System Diagnosis

Pulse Width Modulation (PWM) is used across electrical engineering. It provides a means to control the power consumption of a specific device. Instead of driving a device constantly, the PWM control supplies pulses of power with a defined width to run at the desired speed or reduce the power consumed. The PWM technique is useful because it gives technicians more control over the car. Combining computer module control and PWM afford engineers more circuit configuration options and a greater ability to monitor and protect devices and wiring. 

Computer Module Repair and Diagnosis

Every contemporary vehicle has several computer modules within it managing all sorts of systems. These computer modules are located across the vehicle and are responsible for controlling both electrical signals and logic-based system operation.

Modern cars, trucks, and SUVs use an assortment of computer modules in a network within themselves. They are responsible for monitoring and controlling everything from passenger comfort systems to the vehicle’s most sensitive functions, including ignition and ABS (anti-lock braking system). Because these computer modules are responsible for many circuits, when something goes wrong, it can have a serious impact on the entire function of the vehicle.

Some other parts of the electrical system in your vehicle that our expert technicians examine include:

  • Powertrain Control Module: The PCM is responsible for the function of the engine and its accessory systems. If replaced, it requires the skills of a trained technician to program and configure.
  • Body Control Module: The BCM handles many functions both within the cabin and electrical control of ancillary systems and, like the PCM, requires a skilled technician to configure and program.


There are several reasons this may occur such as the vehicle’s light bulbs needing replacement or issues with the wiring.
If you do not suspect your car battery to be dead, headlights failing to turn on may be due to a bad headlight switch.
If you suspect a blown electrical fuse in your car, you can check the fuse box, typically located to the bottom left of the steering wheel.


Our team of technicians is ready to help you determine your electrical system issue and the best route to repair it to get your car, truck, or SUV running smoothly again. Our auto electrical services are just one of our many repair and maintenance services. Some others include:

  • Check engine service
  • Tires and wheels
  • Suspension and steering system
  • Alignment
  • Drivetrain
  • Differential
  • Clutch

These and other services make Lockett’s Auto Care your one-stop shop for fair pricing and an honest, thorough assessment of your needs. Reach out to us today by calling 410.744.4328 to set up an appointment.