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Home >> Lexus >> 2023 >> LX 600 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (W/ Canister Pump Module) - Diagnostic Codes (9 Of 9), Circuit Tests & Symptom Tests (1 Of 2) >> SFI SYSTEM (w/ Canister Pump Module) >> DTC U0120-87: Lost Communication with Starter / Generator Control Module Missing Message [10/2023 - ] >> Typical Enabling Conditions
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Typical Enabling Conditions

Monitor runs whenever the following DTCs are not stored None
All of the following conditions are met -
Battery voltage 10 V or higher
Ignition switch ON
Starter Off
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