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Home >> Lexus >> 2019 >> ES 350 Luxury >> Repair and Diagnosis >> External Pages >> Different car >> Section 107 (Electronically Controlled Brake System (Hybrid) - Diagnostic Codes (1 Of 5)) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for HV Model) >> DTC C120F: Open in Master Reservoir Level Switch Circuit [06/2018 - ] >> Description

DTC C120F: Open in Master Reservoir Level Switch Circuit [06/2018 - ]: Description

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DTC No. Detection Item INF Code DTC Detection Condition Trouble Area MIL Note
C120F Open in Master Reservoir Level Switch Circuit 371 The brake fluid level warning switch (brake booster with master cylinder assembly) circuit is open for 2 seconds or more.
  • Open in brake fluid level warning switch (brake booster with master cylinder assembly)
  • Open in wire harness
  • Skid control ECU (brake booster with master cylinder assembly)
Comes on
  • INF Code 371: SAE Code C120F
  • Electronically controlled brake system DTC