Stay powered up and drive with confidence. Expert auto electrical repair in Phoenix, with diagnostics you can trust.
Modern vehicles rely heavily on complex electrical systems. From your battery and alternator to your starter and onboard electronics, one weak link can leave you stranded.
As a trusted mechanic for car electrical system repair in Phoenix, we use state-of-the-art diagnostic tools to identify issues accurately and repair them right the first time.
We handle car battery testing and replacement, alternator replacement, starter replacement and car electrical diagnosis on Toyota and Lexus hybrids, Hyundai and Genesis models, and Cadillac and Lincoln luxury vehicles. If your car clicks but will not start, our car won’t start repair finds out why.
“Your electrical system is the lifeline of your vehicle – don’t ignore early warning signs. Let us keep you safely powered on the road.”
-Pete Kelley’s Team
Accurate Diagnostics
Transparent Pricing
Same-Day Service
Warranty-Backed Repairs
A modern vehicle runs dozens of control modules talking to each other over a network, and when that communication breaks down the symptoms rarely look electrical at first. Power mirrors that stop folding, a window that will not go up, a door switch that quits working, a radio that drops out: those trace back to circuits, connectors and modules, not to the parts people usually suspect. That is why power window repair in Phoenix starts with a scan, not a new motor.
In this video, our technician Chuy runs a full module scan on a customer vehicle and works through nine stored fault codes across the body control module and the communication interfaces, separating current faults from history codes. That distinction is the whole job. A current fault is failing right now; a history code is a record of something that already happened and may have been fixed years ago. Clearing codes without reading them first is exactly how shops end up replacing good parts and handing the car back with the same problem.
Intermittent electrical faults are also the ones most likely to be misdiagnosed, because they refuse to appear on demand. Phoenix makes them more common than most places: sustained heat hardens wiring insulation and degrades connector housings, dust works into terminals, and heat cycling loosens contacts that test fine when cool. Low system voltage from a weak or aging battery does the same thing from another direction. Modules behave unpredictably on marginal voltage and set codes across systems that have nothing wrong with them. Checking the battery and doing any charging system repair first saves a great deal of diagnostic time.
We test, repair and replace batteries, alternators and starters, and our Phoenix driver’s guide on when to replace your car battery helps you avoid getting stranded. Our guide to choosing the right car battery covers what holds up in the heat. For a slow crank or recurring warning lights, our diagnostic service traces the real cause.
If your vehicle has electrical gremlins that come and go, book a visit at Pete Kelley’s. We have the scan equipment and the training to read the network properly and find the real source instead of guessing at parts. If the A/C fan or blower is the part that quit, see our A/C and heating service. On North Central Avenue in Phoenix since 1972, and financing is available if the repair turns out to be a larger one.
Stay alert to these common warning signs – fix them early and save on bigger repairs.
If your engine doesn’t turn over, your battery or starter may be failing.
Dimming headlights or flickering electronics, a sign the alternator isn’t keeping up.
A burning odor could mean an electrical or wiring issue and should be checked right away.
Take the stress out of repairs with easy financing options. Drive with confidence now – pay over time. Unexpected electrical issues can hit at the worst moment, but that shouldn’t put your safety on hold. Get the service you need today and spread the cost comfortably over time.
No Annual Fee
Convenient Monthly Payments
Quick Approval - Use Instantly
Extended Coverage
We’ll help diagnose and fix any electrical issues in your vehicle.
For more than 50 years, Phoenix drivers have trusted Pete Kelley’s Auto Service with their battery and electrical repairs. Our ASE-certified mechanics work on every make and model, with the training and equipment to get the repair right the first time.
As a NAPA AutoCare center, we back our auto electrical repair with a nationwide warranty honored at NAPA-certified shops across the country, coverage that follows you long after you leave our garage. With a 4.9-star rating from hundreds of customer reviews, we have built our reputation on honest pricing, dependable service and repairs that last.
From routine maintenance and car battery replacement to belts and hoses, transmission service and advanced diagnostics, our award-winning team keeps you confidently on the road. Schedule your electrical check. We appreciate you choosing Pete Kelley’s.
Our customers choose us for our ethics, experience, and award-winning service.
Ethical Service
Affordable Pricing
Certified Technicians
Trusted by Locals
Award-Winning
Family-Owned
Real feedback, real ratings – across the platforms that matter most.
Getting a quote is quick & easy. Answer a few questions, and you can get an idea of the cost for any needed repairs today!
Usually about two to three years, well short of the national average. Extreme heat speeds up the chemical breakdown inside the battery and evaporates its fluid. If your battery is three or more years old, have it tested before summer.
Auto electrical repair covers the battery, alternator, starter, wiring, fuses, sensors and electronic modules. At Pete Kelley’s, auto electrical repair in Phoenix starts with testing the charging system and measuring battery drain, so we find the actual fault instead of replacing parts by guesswork.
Slow cranking, dim headlights at idle, a battery warning light, clicking when you turn the key, a swollen case or corroded terminals. A load test confirms it. In Phoenix, any battery past three years should be tested at every service.
Rapid clicking usually points to a weak battery or a poor cable connection. A single loud click with no cranking more often points to the starter or its solenoid. We test the battery, cables and starter to confirm before replacing anything.
Dim or flickering lights, a battery light while driving, a whining noise, electrical glitches and batteries that keep going dead. A failing alternator can’t recharge the battery, so replacing only the battery won’t fix it. Every auto electrical repair in Phoenix we perform is backed by the NAPA AutoCare warranty.
Car battery cost depends on the size, type and warranty your vehicle needs. We test the old battery first, then quote the battery and the car battery installation in writing.
Alternator replacement cost and starter replacement cost vary by vehicle and by how much labor it takes to reach the part. We confirm the fault with a charging and starting test, then give you a written price before alternator repair or starter repair begins.
Confirm with the shop before publishing. If yes: “Yes. We test the hybrid battery pack first and quote the hybrid battery replacement in writing.”
