johannesblitz1
Seat Tarraco starting trouble
Summary of the thread
The Seat Tarraco, a 2019 gasoline model, was experiencing starting issues, with a diagnostic scan indicating an interrupted Terminal 30 continuous plus. The problem was suspected to be related to a discharged or defective battery. Suggestions included checking the battery's voltage under load and inspecting the wiring harness for damage or corrosion. Ultimately, replacing the battery resolved the starting trouble.
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4 comment(s)
johannesblitz1 (community.author)
Thanks for the quick reply. How do I check the voltage under load? I have a multimeter, but I'm not sure where to connect it while starting.
matteofrost5
A significant voltage drop during cranking suggests a failing battery, or a starter motor drawing excessive current due to wear. Given the age and mileage, the battery could be the issue. But without testing, it's hard to be sure. If you aren't comfortable doing these tests, I suggest taking it to a workshop to avoid electrical faults.
johannesblitz1 (community.author)
Just to let you know, it was the battery. A replacement fixed the problem. The cost was 290€. Thanks for the assistance.
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SEAT
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TARRACO
matteofrost5
That sounds like a tricky electrical problem. An interrupted Terminal 30 supply, especially impacting starting, suggests voltage drop issues. Have you checked the battery's resting voltage and its voltage under load when starting? Big voltage drops are a classic symptom. Also, check the wiring harness around the starter motor for damage or corrosion. A short circuit in the wiring could also cause this.