The Skid Control ECU (brake actuator assembly) has detected an abnormality in the power supply to the ABS motor relay. Common Symptoms: ABS warning light is illuminated. Brake System/VSC/Traction Control warning lights may be on. Brake hold function may be disabled. Detection Conditions The system triggers this code under the following patterns: Pattern 1: After the pump motor is turned off, the ECU detects 0.6 V or more at the pump motor for at least 0.48 seconds Pattern 2: The power supply to the ABS motor relay drops for at least 0.15 seconds Potential Causes & Diagnostic Steps Main Causes: Primarily related to a faulty Skid Control ECU (brake actuator assembly)
In Toyota’s Diagnostic Trouble Code (DTC) library: i--- Toyota C052f14
: Reviewers generally note that these aftermarket units match the physical dimensions and mounting points of original OEM parts (such as 89245-0K020). The plastic housing is usually durable, but the internal "Hall-effect" circuitry is where budget versions may vary in longevity compared to factory Denso parts. The Skid Control ECU (brake actuator assembly) has
This code typically appears when the skid control ECU (the brake actuator assembly) detects abnormal voltage levels—specifically, 0.6 V or more after the pump stops operating, or a power supply drop below 5 V for a brief duration. Common Causes & Context Brake hold function may be disabled