BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C143A7E,...,C14DA14; ABS Solenoid Control Module Actuator Stuck On; 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000002D0G5
Model Year Start: 2024	Model: GR Corolla	Prod Date Range: [08/2023 - ]
Title: BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model with Electric Parking Brake System): C143A7E,...,C14DA14; ABS Solenoid Control Module Actuator Stuck On; 2024 - 2025 MY Corolla Corolla Hatchback GR Corolla [08/2023 - ]

DTC

C143A7E

ABS Solenoid Control Module Actuator Stuck On

DTC

C143A7F

ABS Solenoid Control Module Actuator Stuck Off

DTC

C143D49

ABS Solenoid Control Module Internal Electronic Failure

DTC

C14DA14

ABS Solenoid Supply Voltage Circuit Short to Ground or Open

DESCRIPTION

The ABS solenoid relay is built into the skid control ECU in the brake actuator assembly. The ABS solenoid relay supplies power to each solenoid.

The skid control ECU (brake actuator assembly) detects an ABS solenoid relay malfunction by performing a self check and relay operation check.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area	MIL	Note
C143A7E	ABS Solenoid Control Module Actuator Stuck On	When an ABS solenoid relay OFF request is sent, the ABS solenoid relay remains ON for 0.065 seconds or more.	Skid control ECU (brake actuator assembly)	Does not come on	-
C143A7F	ABS Solenoid Control Module Actuator Stuck Off	When an ABS solenoid relay ON request is sent, the ABS solenoid relay remains OFF for 0.015 seconds or more.	Skid control ECU (brake actuator assembly)	Does not come on	-
C143D49	ABS Solenoid Control Module Internal Electronic Failure	A malfunction in the ABS solenoid relay drive circuit is detected during the self test.	Skid control ECU (brake actuator assembly)	Does not come on	-
C14DA14	ABS Solenoid Supply Voltage Circuit Short to Ground or Open	The ABS solenoid voltage is less than 40% of the +BS voltage for 0.185 seconds or more.	Skid control ECU (brake actuator assembly)	Does not come on	-

1.	REPLACE BRAKE ACTUATOR ASSEMBLY

(a) Replace the skid control ECU (brake actuator assembly).

Click here

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