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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 117 (Engine Control System (A25A-FXS) - Diagnostic Codes (20 Of 20) & Circuit Tests (1 Of 2)) >> SFI System >> DTC U0129-87: Lost Communication with Brake System Control Module Missing Message [08/2021 - ] >> Typical Enabling Conditions

Typical Enabling Conditions

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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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