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Home >> Toyota >> 2025 >> Prius Plug-In Hybrid SE >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 9 (Hybrid Battery System (HEV) - Diagnostic Codes (1 Of 2)) >> HYBRID BATTERY SYSTEM (for M20A-FXS) >> DTC P0606-87: Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message [12/2022 - ] >> Description

DTC P0606-87: Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message [12/2022 - ]: Description

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The battery ECU assembly monitors its internal operation and will store these DTCs when it detects an internal malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate DTC Output from Priority Note
P0606-87 Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message ECU internal malfunction
(1 trip detection logic)
Battery ECU assembly Comes on Master Warning:
Comes on
HV Battery A SAE Code: P0606