The EPB is the acronym for Electric Parking Brake system. Instead of using pedal or lever, using switch can apply parking brake. Drive controls switch → switch signal to ECU → ECU activate actuator → parking brake Apply/Release. When EPB switch is pulled, parking brake gets Applied. When EPB switch is pushed down, parking brake is released.
The EPB ECU sets this DTC when there is TCU CAN signal error for 0.5 second.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring CAN messages. | 1. TCU system |
Enable conditions |
•
IG ON
•
Battery voltage is between 9.5V ~ 17V
•
No CAN Bus off
•
No CAN Time-out TCU DTC | |
Threshold value |
•
If there is TCU message(gear position, etc) error for 0.5 second | |
Fail-Safe |
•
Automatic release function inhibited |
