General Information

Electric Hydraulic Power Steering
C1617 EMS Invalid Engine Speed - General Information

Component Location





General Description

Several control units are applied to electronically controlled vehicles. These units perform each control with informations from various sensors. Thus, sharing signal information from sensors is needed, so CAN communication type whose communication speed is high and insensitive to electrical noise by spark generation is adopted to controlling power-train(engine, atutomatic transaxle, ABS, TCS, ECS)
As sharing signals of engine speed, vehicle speed, steering wheel position through CAN communication, MPU(Motor Pump Unit) control vehicle actively.

DTC Description

The MPU set this code If input signal is too low from EMS or input abnormal engine speed.

DTC Detecting Condition





Diagnostic Circuit Diagram