[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
37 -ELECTRIC POWER STEERING (EPS) > TROUBLESHOOTING > DIAGNOSIS CODE PROCEDURES > C1558 INVALID DATA RECEIVED OF WHEEL SPEED INFORMATION
Code No.C1558 Invalid Data Received of Wheel speed information
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C, CAN Bus Diagnostics Table ).
  • Whenever ECU is replaced, ensure that the CAN bus lines are normal.
 
 
OPERATION
EPS-ECU receives wheel speed information from the ASC-ECU.
 
 
 
FUNCTION
Based on the wheel speed information the EPS-ECU receives, the EPS-ECU performs the control to improve the steering wheel return.
 
 
 
TROUBLE JUDGEMENT
Check Conditions
  • The power supply circuit system diagnosis code (No. C1540, C1541) is not set.
Judgement Criterion
  • When abnormal wheel speed information is received from the ASC-ECU.
Fail Safe, Back Up Function
  • The EPS-ECU sets diagnosis code No. C1558.
  • Aggravated feeling of steerage
 
 
 
PROBABLE CAUSES
  • Malfunction of the ASC-ECU
  • Malfunction of the EPS-ECU
 
 
 
 
DIAGNOSIS PROCEDURE
1. Check the service data "Item No. 24: Front left wheel speed, Item No. 25: Front right wheel speed, Item No. 26: Rear left wheel speed, Item No. 27: Rear right wheel speed" and If there is an abnormality, perform troubleshooting for ASC-ECU (Refer to GROUP 35C - Troubleshooting ).
2. Replace the EPS-ECU (Refer to ).