EPS provides different assist force according to vehicle speed while engine ON. A vehicle speed signal must be inputted normally to EPS CM for normal EPS control.
EPS CM sets this code if EPS CM doesn't receives a vehicle speed signal from EMS normally.
At that time it controls EPS system by using predefined vehicle speed value.
Item
Detecting Condition
Possible cause
DTC Strategy
Check received message from ECM
Open or short in CAN harness of engine side
EMS ECU.
Faulty EPS CM
Enable conditions
IG ON
Threshold value
Engine speed signal is INVALID
Fail Safe
EPS CM sets vehicle speed as 254KPH.
Restoration conditions
Received Engine speed signal from ECM is normal.