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Home >> Lexus >> 2019 >> RX 450h Base >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Electronically Controlled Brake System (Diagnostic Codes) (4 Of 7) >> Electronically Controlled Brake System >> DTC C1311-11: Open in Main Relay 1 Circuit; DTC C1312-12: Short in Main Relay 1 Circuit; DTC C1313-13: Open in Main Relay 2 Circuit; DTC C1314-14: Short in Main Relay 2 Circuit [08/2018 - 08/2019] >> Typical Malfunction Thresholds
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Typical Malfunction Thresholds

C12FA

Both of the following conditions are met -
After main relay 1 on, main relay 1 monitor on history not existing Met
Main relay 1 monitor Less than 3.5 V
C12FB

BS01 voltage 6.5 V or more
C130C

Both of the following conditions are met -
After main relay 2 on, main relay 2 monitor on history not existing Met
Main relay 2 monitor Less than 3.5 V
C130D

BS02 voltage 6.5 V or more