The ABS motor relay and pump motor are built into the brake actuator assembly.
If the skid control ECU (brake actuator assembly) detects a malfunction in the drive circuit of the pump motor, this DTC is stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | DTC Output from | Note |
|---|---|---|---|---|---|---|
| C052C49 | ABS Pump Motor Control Internal Electronic Failure | ·
The skid control ECU (brake actuator assembly) detects a malfunction in the pump motor circuit. ·
When the system has started, a short to +B is detected during the ABS motor drive circuit self-test. |
Skid control ECU (brake actuator assembly) | Comes on | Brake/EPB | ·
SAE Code: C052C (Case 1, 2, 4, 5, 7, 8, 9 and 10) ·
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.
Depress the brake pedal several times to operate the pump motor of the brake actuator assembly. [*1]
Drive the vehicle at 40 km/h (25 mph) or more for 1 second. [*2]
[*1] to [*2]: 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.
| Proceed to |
|---|
| NEXT |
NEXT