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Home >> Lexus >> 2023 >> LS 500 Base, AWD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System (W/ Vacuum Brake Booster) - Diagnostic Codes (3 Of 4) >> ELECTRONICALLY CONTROLLED BRAKE SYSTEM (w/ Vacuum Brake Booster) >> DTC C1420: Acceleration Sensor Malfunction [12/2017 - 09/2018] >> Description

DTC C1420: Acceleration Sensor Malfunction [12/2017 - 09/2018]: Description

The skid control ECU (brake actuator assembly) receives signals from the acceleration sensor (yaw rate sensor) via CAN communication.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
C1420 Acceleration Sensor Malfunction After the difference between GL1 and GL2 becomes 0.6 G or more with the vehicle stationary, the difference remains 0.4 G or more for 60 seconds or more.
  • Sensor installation
  • Acceleration sensor (yaw rate sensor)
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