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Home >> Toyota >> 2021 >> 4Runner TRD Pro >> Repair and Diagnosis >> Brakes >> Anti-Lock Brakes >> Vehicle Stability Control System (For Vacuum Brake Booster) - Diagnostic Codes (B1380-U0074) & Symptom Tests >> VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster) >> DTC C143A-7E: ABS Solenoid Control Module Actuator Stuck On; DTC C143A-7F: ABS Solenoid Control Module Actuator Stuck Off [08/2019 - ] >> Description

DTC C143A-7E: ABS Solenoid Control Module Actuator Stuck On; DTC C143A-7F: ABS Solenoid Control Module Actuator Stuck Off [08/2019 - ]: Description

The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid.

The solenoid relay is turned on 1.5 seconds after the ignition switch is turned to ON, and is turned off if an open or short in the solenoid is detected by the self diagnosis performed when the engine starts running.

The ABS solenoid relay is housed in the skid control ECU in the actuator assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
C143A-7E ABS Solenoid Control Module Actuator Stuck On When voltage at terminal +BS is 9.5 V or higher, solenoid relay is OFF, relay contact is ON continuously for 4.5 seconds or more. Skid control ECU (Brake actuator assembly)
C143A-7F ABS Solenoid Control Module Actuator Stuck Off When voltage at terminal +BS is 9.5 V or higher and solenoid relay is ON, relay contact is OFF continuously for 0.22 seconds or more.
  • ABS NO. 2 fuse
  • Wire harness or connector
  • Skid control ECU (Brake actuator assembly)