Intermittent battery concerns can be some of the most difficult electrical problems to diagnose – vehicle may be operating normally by the time it reaches the service bay. A customer might report a slow crank, clicking starter, or complete no-start, only for the...
A battery tester may return a decision, but that doesn’t always mean the diagnosis is finished. Battery condition, state of charge, temperature, recent charging, test inputs, and even where the tester is connected can influence the result. When a battery test doesn’t...
Every vehicle that comes into a service bay should have its 12-volt battery tested, even when the customer hasn’t reported a starting or electrical problem. Battery condition can change between visits, and voltage alone doesn’t provide a complete picture of battery...
A charging port fault on an EV requires treating the charging port area as a potential source of high-voltage exposure. It’s crucial to acknowledge that before any work begins, regardless whether the fault code that’s triggering the inspection looks minor or not....
When an over-the-air software update fails partway through, the 12V battery is often left in a worse state than it was before the update started. In some cases, the vehicle behaves in ways that look like a battery failure when the real issue is what the failed update...