Common Jaguar Electrical Issues And How Our Houston Experts Fix Them

Modern Jaguars represent their rich heritage of performance and luxury, as well as the latest automotive innovations. Along with their mechanical and performance prowess, these cars feature a complex array of electronic modules integrated into every aspect of the vehicle. Similar to general electronics, these modules are temperamental and occasionally experience issues and malfunctions.

The highly complex and sophisticated Jaguars have a very low tolerance for malfunctions and require prompt, precise repair to restore functionality. They demand an expert, experienced technician who can identify the root cause of the electronic issue and provide an accurate repair. Bimmer Performance in Houston offers high-quality, precise services specifically tailored for European vehicles like Jaguars.

Common Electrical Issues and Their Repairs

Parasitic Drain

After a long period of sitting idle or being parked, the vehicle fails to start due to battery drain. However, after jump-starting, it works fine. If this issue occurs frequently with your car, it may indicate a parasitic drain, where the battery is being drained by a module that remains active even after the vehicle is turned off. A faulty security module, a stuck glove box light switch, or a failing Body Control Module (BCM) can cause a parasitic drain issue.

The repair starts with identifying the malfunctioning component. A weak battery can mimic the symptoms of the parasitic drain; thus, the battery health is checked first. If the battery is fine, a draw test is done to confirm the parasitic drain. After that, individual circuits are tested to identify the malfunctioning module cluster. Then, in the end, the module is isolated, ultimately pinpointing the malfunction. The damaged electronic module is then replaced with a new OEM-made one.

Alternator Failure and Charging System Malfunctions

The alternator provides the electricity demands of the modules in the Jaguar. A malfunction in this module causes dimming or flickering headlights, dashboard warning lights (especially the battery indicator), vehicle stalling, odd noises such as grinding, and loss of power to car accessories.

Using a multimeter, our experts verify the alternator’s function by checking the voltage output and inspecting the entire charging system, including drive belts, electrical connections, and the battery itself. Based on the findings from the diagnostic inspection, a repair plan is prepared. Suppose the issue stems from the alternator; a new OEM-made module is installed, removing the damaged one. If the damage is caused by components associated with the alternator, repairs are made according to the related components.

Dashboard Malfunction

The Jaguar dashboard serves as the vehicle’s OBD system, indicating to the driver any malfunctions occurring in the car. If multiple dashboard lights for various systems light up simultaneously in the vehicle, it is often due to a malfunction with the vehicle’s dashboard. This malfunction may have its roots in a weak or failing battery, a faulty ABS wheel speed sensor, a corroded grounding point, or a failing instrument cluster.

The diagnosis process includes a battery check-up, a diagnostic scan, and live data analysis. Depending upon the results, the repair is decided. The weak battery is replaced with a new one, and the speed sensor is replaced as well. Additionally, rewiring is performed to address a failing grounding point, and the control system is repaired to address the dashboard malfunction caused by the failing module cluster.

Infotainment System Glitches

The infotainment system is not just an entertainment hub, but a multi-functional control center that manages vehicle settings, communication, navigation, electronic module, entertainment, and vehicle safety systems. Malfunctions can range from simple software glitches to failing internal hardware or loose fiber optic cables.

The repair can vary depending on the malfunction. For minor software glitches, the module is hard reset. Errors and bugs are cleared by updating the software. The MOST loop is thoroughly inspected in cases of fiber-optic malfunction. In case of hardware failure, the system is removed and repaired by a specialist or replaced.

Jaguar Electrical Malfunction Repair at Bimmer Performance in Houston

Visit our auto service facility, Bimmer Performance in Houston, to repair all electrical malfunctions in your Jaguar. We are Houston’s premier European auto repair shop, equipped with the equipment and expertise to handle the complexity of a Jaguar. Our facility houses ASE-certified technicians equipped with factory-grade tools to provide expert, accurate repairs.

We offer affordable auto performance upgrades and tuning, along with complimentary shuttle service within a five-mile radius. We back our work with a 24,000-mile/24-month warranty. Operating from 1320 Upland Drive in Houston, we also serve residents of surrounding cities, including Cinco Ranch, Cypress, Katy, and Sugar Land.

* Jaguar F-TYPE S v8 AWD Convertible Car image credit goes to: photosvit.