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Home › Toyota › 2017 › Prius Prime Plus › Repair and Diagnosis › Engine Performance › System › Engine Control System - Diagnostic Codes (7 Of 7) › SFI System › DTC U0129-87: Lost Communication with Brake System Control Module Missing Message [09/2016 - ] › Typical Enabling Conditions

Typical Enabling Conditions

Monitor runs whenever the following DTCs are not stored None
Both of the following conditions are met -
Auxiliary battery Voltage 10 V or higher
Power switch On (IG)
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