EPS(MDPS=Motor Driving Power Steering) ECU monitors that operating voltage supplied as IG S/W is too high or too low on "power supply terminal". If excessive high voltage or low voltage is detected, EPS ECU stops current supply to solenoid to prevent unexpected operation or damage.
EPS(MDPS=Motor Driving Power Steering) ECU sets this code and turns on warning lamp if excessive low voltage caused by faulty alternator or poor connention in power supply circuit is detected.
Item | Detecting Condition | Possible cause |
DTC Strategy |
•
Battery Voltage Monitoring | 1. Open/short in power circuit. 2. Faulty ground circuit 3. Faulty charging system. 4. Over discharge |
Enable conditions |
•
Engine "ON" | |
Threshold value |
•
When Vign is lower than 9V for more than 10s. | |
Fail Safe |
•
EPS warning lamp "ON" | |
Restoration conditions |
•
When Vign is higher than 10V for more than 10s. |
Bat. Voltage | IG Key ON | ENG. ON |
Approx. 11.8 [V]~12.5 [V] | Approx. 12.5 [V] ~ 14.5 [V] |
