Toyota P3000 Hybrid Battery System Fault
P3000 on Toyota hybrids is a general hybrid battery system fault. Sub-codes (P3001-P3099) indicate specific module failures. P3000 alone with no sub-codes often indicates 12V battery failure affecting hybrid communication. Replace 12V battery first before investigating HV system.
Repair / Solution
No confirmed fixes yet. Share yours below.
⚠️ Wrong Diagnosis?
No commonly reported misdiagnoses for this fault yet. If you have replaced a part that did not fix this Toyota Prius 2004 problem, submit a wrong diagnosis report — it helps other drivers avoid the same costly mistake.
🚗 More About This Vehicle
Help other owners by sharing your experience.
Your real-world fix helps thousands of drivers worldwide. Takes 2 minutes.