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Home >> Lexus >> 2019 >> GX 460 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostic Codes (7 Of 7) & (Circuit Tests) (1 Of 2) >> SFI System >> DTC U0129: Lost Communication with Brake System Control Module [08/2019 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever the following DTCs are not stored None
Both of the following conditions are met -
Battery voltage 10 V or higher
Engine switch On (IG)
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