Troubleshooting Alternator & Electrical
MVS Volvo Forum user coflynn shows us step-by-step how to diagnose annoying, battery-killing electrical drains that leave you stranded:
“My car was completely flat today. CAA came & boosted me, as part of that they do a little diagnosis, where they said the car was drawing ~4.5 amps when off, which is much too high. Everything else came back OK, and the car would still charge fine.”
“I thought I’d share my troubleshooting tips/strategy for anyone else who runs into this.”
You will need the following to work on this:
- Clamp multimeter that measures DC current, ideally with diode test functionally
- Good sized tool kit… lots of fiddling with different sized screws etc
- List of good swear words
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