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.
EPB ECU sets this DTC when there is problem with rear left actuator.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring motor rotating time and activation current | 1. No disc or pad 2. Wiring problem 3. Faulty Brake caliper assembled condition 4. Faulty actuator |
Enable conditions |
•
IG ON
•
Battery voltage between 8.5V and 17V
•
EPB apply or release | |
Threshold value |
•
When the motor driving is continued for 15sec at apply.
•
When the motor driving is continued for 7sec at release. | |
Fail Safe |
•
Left actuator activation inhibited |
