DTC 21

DTC 21,22, 23,24 ABS Actuator Solenoid Circuit

Codes 21, 22, 23, 24: ABS Actuator Solenoid Circuit DTC Chart:

ABS Actuator Solenoid Circuit Wiring Diagram (2JZ-GE Engine):

ABS Actuator Solenoid Circuit Inspection Procedure:

CIRCUIT DESCRIPTION
The solenoid goes on when signals are received from the Electronic Control Unit (ECU) and controls the fluid pressure acting on the Wheel Cylinders, thus controlling the braking force.

FAIL SAFE FUNCTION
If trouble occurs in the Anti-Lock Brake System (ABS) Actuator Solenoid circuit, the ECU cuts off current to the ABS Solenoid Relay and prohibits ABS control.