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 | DTC Output from | 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) | Comes on | Brake/EPB | ·
SAE Code: C143B ·
Output ECU: Skid control ECU (brake actuator assembly) |
| 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) | Comes on | Brake/EPB | ·
SAE Code: C143C ·
Output ECU: Skid control ECU (brake actuator assembly) |
| 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) | Comes on | Brake/EPB | ·
SAE Code: C143D (Case 1 to 3) ·
Output ECU: Skid control ECU (brake actuator assembly) |
| 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) | Comes on | Brake/EPB | ·
SAE Code: C14DB (Case 1 and 2) ·
Output ECU: Skid control ECU (brake actuator assembly) |
When performing the normal judgment procedure, make sure that the driver door is closed and is not opened at any time during the procedure.
After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Connect the GTS to the DLC3.
Turn the ignition switch to ON and turn the GTS on.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off.
Turn the ignition switch to ON (READY) and turn the GTS on.
Wait for 1 second or more. [*]
[*]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
Enter the following menus: Chassis / Brake/EPB* / Utility / All Readiness.
*: Electric Parking Brake System
Check the DTC judgment result.
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
If the judgment result shows INCOMPLETE, perform driving pattern again.
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