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Home >> Lexus >> 2018 >> LS 500h RWD >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Electronically Controlled Brake System - Diagnostic Codes (4 Of 7) >> Electronically Controlled Brake System >> DTC C1311: Open Circuit in Main Relay 1; DTC C1312: Short Circuit in Main Relay 1; DTC C1313: Open Circuit in Main Relay 2; DTC C1314: Short Circuit in Main Relay 2 [09/2018 - 09/2019] >> Monitor Strategy
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Monitor Strategy

Related DTCs C12FA: ABS main relay 1 open circuit
C12FB: ABS main relay 1 short circuit
C130C: ABS main relay 2 open circuit
C130D: ABS main relay 2 short circuit
Required Sensors/Components (Main) Skid control ECU assembly
Required Sensors/Components (Related) Skid control ECU assembly
Frequency of Operation Continuous
Duration -: C12FA and C130C
1 second: C12FB and C130D
MIL Operation Immediately
Sequence of Operation None