P3000Hybrid battery control system fault

• Toyota/Lexus code · Hybrid system
• Turns on the check-engine light

How the car detects it

The hybrid control unit stored this code because the high-voltage battery system reported a fault. The information code (sub-code) stored with it matters: with 123 it only records that the battery computer set its own code, so read and repair the battery computer's codes, not this one. A hybrid warning shows the system protecting itself; if the car limits power or won't go into READY, stop somewhere safe and get help.

What you may notice

• Check-engine light
• Hybrid system warning on the display

Likely causes

• PossibleFault reported by the high-voltage battery computer
• RareHybrid battery or its sensors

Sources

• static.nhtsa.gov › MC-10132527-9999.pdf · official document
• toyota-club.net › hv_p410.htm

Backed by an official manufacturer document.

From Obdaryn's Toyota/Lexus pack, exactly as the app shows it, with the public sources above. Guidance only; confirm with a workshop.