emanuel_braun1
Odyssey high voltage system error
Summary of the thread
A 2019 Honda Odyssey hybrid experienced a high-voltage system error, causing the engine to shut off and reduce power. The issue was suspected to be related to a heavily discharged or defective traction battery. After a diagnostic check, it was confirmed that the traction battery was indeed heavily discharged and needed replacement. Once replaced and recalibrated, the vehicle returned to normal operation.
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4 comment(s)
emanuel_braun1 (community.author)
Where exactly would I locate those voltage sensors to check them, and what would be considered a normal range? I'm moderately tech-savvy but haven't dug into the hybrid system that deep yet.
gertwolf7
Without specific diagnostic tools, probing the high-voltage system on your own can be risky. Given the system malfunction and potential high-voltage issues, I would strongly advise taking it to a qualified workshop that specializes in EVs and hybrids. It's not worth risking your safety for a DIY fix in this case.
emanuel_braun1 (community.author)
You're absolutely right. I booked it in, and the diagnostic confirmed the traction battery was heavily discharged. They replaced it, and after recalibrating the system, everything seems to be running perfectly. The repair cost 290€. Thanks for the reality check!
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HONDA
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ODYSSEY
gertwolf7
It certainly sounds like a traction battery issue, given the symptoms and the error code. Have you checked the voltage sensor readings on the high-voltage system? An inverter issue might also present similar symptoms, but a battery is the prime suspect.