The EPB ECU checks the battery voltage and alternator output voltage to determine, as a safety issue,
whether this system can operate normally or not.
The normal battery voltage range is essential for controlling this system as intended
The EPB ECU monitors the voltage of battery and if it stays more than a certain value, this DTC is set.
Item | Detecting Condition | Possible Cause |
DTC Strategy |
•
Monitoring the voltage of battery | 1. Poor connection in power supply circuit 2. Poor connection in ground supply circuit 3. Charging System |
Enable conditions |
•
EPB Wake up | |
Threshold value |
•
When Battery voltage is more than 19V above 0.5 seconds being continued
•
When Battery voltage is more than 17V above 2 seconds being continued | |
Fail Safe |
•
The EPB functions are inhibited |
Bat. Voltage | IG Key ON | ENG. ON |
Approx. 11.8 [V]~12.5 [V] | Approx. 12.5 [V] ~ 14.5 [V] |
