Electrical · Covina
Electrical Diagnostics in Covina
From no-start conditions to mystery battery drain, we diagnose vehicle electrical systems methodically and explain findings in plain language.
What we do
- Battery, alternator, and starter testing
- Charging-system diagnosis
- Parasitic-draw testing
- Power windows, locks, and accessories
- Lighting and wiring repair
- Module communication diagnosis
Serving Covina & Surrounding Communities
Local drivers from Covina, West Covina, San Dimas, Glendora, Azusa, and Baldwin Park trust us for documented inspections and clear written estimates. No repair moves forward without your approval.
Leo Brown's Complete Auto Care • California ARD 306182 • (626) 332-3400
Common Symptoms
- ·Vehicle won't start or cranks slowly
- ·Battery keeps dying overnight
- ·Battery or charging warning light
- ·Dim or flickering headlights
- ·Power accessories not working
What the Inspection Includes
- ·Battery load and conductance testing
- ·Charging-system output test
- ·Starter current draw test
- ·Parasitic-draw measurement
- ·Circuit-level voltage drop testing
What You Can Expect
- ·Honest assessment , not a parts guess
- ·Written estimate before any repair
- ·Documented test results
- ·Repair verification after work is complete
Frequently Asked Questions
Is my battery dying or my alternator?
They produce similar symptoms but require very different repairs. We test both before recommending parts.
What is a parasitic draw test?
It measures current the vehicle is using with the key off. Excess draw is the usual cause of a battery that dies overnight. We isolate the offending circuit.
Why did my new battery die again?
Either the charging system is undercharging, there's a parasitic draw, or the battery was defective. Testing identifies which.
Can you diagnose electrical accessory problems?
Yes , power windows, locks, mirrors, lighting, infotainment connections, and similar circuits. We trace the fault rather than swap parts.
Do you program modules and keys?
Many module and key services are within our capability; some require dealer-only tooling. We'll be upfront if a dealer visit is the right path.
Related Services
Ready to get started?
Request an appointment and we'll confirm by phone, text, or email.