Charging System Diagnostics and Repair

Diagnosing modern vehicle charging systems is no easy task. As Albin Moore pointed out in a guest article several years ago, the days of checking alternator voltage output by confirming it within a predetermined window are mostly over. As smart charging systems have become the norm, resolving charging system problems and related power system issues has become more complex. As if that weren’t enough, there are still many mechanical issues related to alternator operation that can cause poor vehicle performance or result in a no start condition. This month, we have pulled together several resources related to charging system diagnosis and repair in an effort to help you stay up to date on this tricky area of vehicle service.

Jump Starting – How to Make it Safe and Effective

As we approach the fall and winter season, where jump starting instances increase considerably, we thought that now is a great time to revisit the key things to remember for effective jump starting while also reminding everyone about the importance of safety. Following these steps will ensure that you achieve your desired result and keep yourself safe in the process.

Providing Power for Module Reprogramming

When it comes to module reprogramming, there is so much information out there for busy shops and technicians to keep up with. Even if you confine your focus to just the power requirements related to module reprogramming, it can still be overwhelming. Different OEs call for different power needs, in terms of both system voltage and available current, to keep up with expected demand. Even within a single make, the power requirements can shift drastically from model to model and among different model years.

More Featured Articles

The Perfect Marine Starter

We hear all the time from customers about how they used a product we manufactured to get themselves out of a difficult situation or how our products helped them avoid a difficult situation altogether. One common situation we hear about often is a customer battling a dilemma in a marine setting. In fact, this month’s Clore Story is from a customer who used his BA9 battery tester to resolve what could have been a real mess.

Clore Stories

Real life stories from customers solving problems with Clore Products.

Jaguar is No Match for the JNC1224

“My wife bought a 2015 F-Series Jaguar, a pretty 2-seater. The problem is, if you don’t drive it enough, the battery goes dead. Once it goes dead, it takes a jump starter of distinction to start it....

JNC660 Keeps Vintage Equipment Alive

JNC660 Keeps Vintage Equipment Alive

“Well, I'm a shop technician for a small construction company. I have to keep things moving – the equipment and plow truck. So, during the winter, when the boss goes home to sleep, I’m in charge of...

BA9 Saves the Boat Trip

BA9 Saves the Boat Trip

“As a longtime home enthusiast of cars, boats, motorcycles and any other motorized toy, I learned a long time ago to never take a battery for granted. Working for Auto Parts companies most of my...

JNC770R Makes Jump Starting Easier

JNC770R Makes Jump Starting Easier

“Two weeks ago, I was in the process of purchasing a home, accompanied by the real estate representative. When we arrived at the house, we saw two cars in the driveway. We thought that they were...

What Ya Got There – It’s a JNC Jump Box

What Ya Got There – It’s a JNC Jump Box

“I had an inferior jump box and had left my lights on and needed a jump. Well, suffice to say, the inferior jump box couldn't cut the mustard. So, I had to call good old AAA and a fine young...

JNC with the Quick Fix

JNC with the Quick Fix

“I run a sole proprietor locksmith business and I bought the JNC770B to power up batteries on customer cars. When you go to test a key or program the key fob, the car battery has to be 12V+. Some...

Resources / iATN

Auto Stop-Start Mystery

Auto Stop-Start Mystery

For this month’s tech resource, we’ve got another electrical mystery, this time on a 2019 Chevrolet Impala equipped with Auto Stop/Start function, courtesy of William in West Virginia. The complaint was that the vehicle wouldn’t resume operation after a Stop event....

The Case of the Finicky Flatbed

The Case of the Finicky Flatbed

Here’s a diagnostic case study involving all the critical elements of a great electrical system who-done-it: vehicle started fine when first brought in but wouldn’t start after the repair was completed; aftermarket equipment plays a key role in this mystery; the...