LEMON Manuals: Even more car manuals for everyone: 1960-2025
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 Enabling Conditions
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Typical Enabling Conditions

C12FA

Monitor runs whenever the following DTCs are not stored None
Brake system voltage 1 Higher than 7 V
C12FB

Monitor runs whenever the following DTCs are not stored C0597 (Case 1): Skid control ECU EEPROM malfunction
C0597 (Case 2): Skid control ECU lost communication
C0597 (Case 3): Skid control ECU CPU malfunction
C0597 (Case 4): Skid control ECU IC malfunction
C0597 (Case 5): Skid control ECU signal CPU communication failure
Both of the following conditions are met -
Main relay 1 Off
C0597 (Case 1, 2 and 3) Not detected
C130C

Monitor runs whenever the following DTCs are not stored None
Brake system voltage 2 Higher than 7 V
C130D

Monitor runs whenever the following DTCs are not stored C0597 (Case 1): Skid control ECU EEPROM malfunction
C0597 (Case 2): Skid control ECU lost communication
C0597 (Case 3): Skid control ECU CPU malfunction
C0597 (Case 4): Skid control ECU IC malfunction
C0597 (Case 5): Skid control ECU signal CPU communication failure
Both of the following conditions are met -
Main relay 2 Off
C0597 (Case 1, 2 and 3) Not detected