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Home >> Subaru >> 2021 >> Crosstrek Limited >> Repair and Diagnosis (Single Page) >> Brakes >> Anti-Lock Brakes >> Electric Brake Booster System (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC C1B2D Solenoid Valve 2 Circuit Low >> General Description >> Execution Condition

Execution Condition

Secondary parameters Execution condition
Case 1 
Power supply for Brake Fluid Pressure Control Solenoid
More than 9.13 V
Command to Brake Fluid Pressure Control Solenoid Valve power supply relay Closed
Brake Fluid Pressure Control Solenoid Valve power supply relay Closed
Serial communication with IC1 Valid
Solenoid Valve low side operating ON
Current Less than 2.3 A
ABS (Current target current - Last target current) 0.20 A or less
Output duty cycle More than 0%
ABS (Current Power supply for linear Solenoid Valve - Last Power supply for linear Solenoid Valve) 1 V or less
Solenoid Valve open current correlation Stored
Current monitor Normal
Case 2 
Power supply for Brake Fluid Pressure Control Solenoid
More than 9.13 V
Command to Brake Fluid Pressure Control Solenoid Valve power supply relay Closed
Brake Fluid Pressure Control Solenoid Valve power supply relay Closed
Serial communication with IC1 Valid
Solenoid Valve low side operating ON
Current Less than 2.3 A
ABS (Current target current - Last target current) 0.20 A or less
Output duty cycle More than 0%
Current monitor Normal
ABS (Current Power supply for linear Solenoid Valve - Last Power supply for linear Solenoid Valve) More than 1 V
or
Solenoid Valve open current correlation
Not Stored
Case 3 
Command to Brake Fluid Pressure Control Solenoid Valve power supply relay
Closed
Brake Fluid Pressure Control Solenoid Valve power supply relay Closed
Solenoid Valve low side operating ON
Serial communication with IC1 Valid
Output duty cycle 0%
Current monitor Normal
Current Less than 0.20 A