A "hot at all times" from engine control relay is supplied to EPS CM as fail safe relay when EPS CM is "ON". EPS CM uses this as the source in EPS motor and system.
Item | Detecting Condition | Possible Cause |
DTC strategy | ● Voltage check | ● Open in ground circuit. ● Contact resistance in connections. ● Faulty charging system. |
Enable conditions | ● System power "ON" | |
Threshold value | ● Fail-safe relay contact voltage > 17.5 V | |
Diagnosis time | ● 48 ms | |
Fail safe | ● Motor : OFF ● Relay : ON ● Fail lamp : ON ● Restoration condition : Fail-safe relay voltage ≤ 17.5 V |
