The ABS motor relay is built into the brake actuator assembly.
When the skid control ECU (brake actuator assembly) operates ABS, the ABS motor relay turns ON and drives the motor pump built into the brake actuator assembly.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| C052F14 | ABS Pump Motor Supply Voltage Circuit Short to Ground or Open | ·
When the pump motor is turned off after operating, 0.6 V or more is detected at the pump motor for 0.48 seconds or more. ·
The power supply of the ABS motor relay is less than 5 V for 0.15 seconds or more. |
Skid control ECU (brake actuator assembly) |
| Vehicle Condition | |||
|---|---|---|---|
| Pattern 1 | Pattern 2 | ||
| Diagnosis Condition | The pump motor is turned off after operating. | ○ | - |
| Malfunction Status | 0.6 V or more is detected at the pump motor. | ○ | - |
| The power supply of the ABS motor relay is less than 5 V. | - | ○ | |
| Detection Time | 0.48 seconds or more. | 0.15 seconds or more. | |
| Number of Trips | 1 trip | 1 trip | |
DTC will be output when conditions for either of the patterns in the table above are met.
After replacing the skid control ECU (brake actuator assembly), perform store system information memorization.
Replace the skid control ECU (brake actuator assembly).
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