2018 / ECLIPSE CROSS / EC - Workshop Manual
35 -SERVICE BRAKES > 35C-ACTIVE STABILITY CONTROL SYSTEM (ASC) > TROUBLESHOOTING<ASC-ECU><ASC-ECU> > DIAGNOSIS CODE PROCEDURES > CODE NO. U1013 Driver demand torque signal
Code No. U1013 Driver Demand Torque Signal
 
 
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 ).
  • If diagnosis code No.U1013 is set in ASC-ECU, always diagnose the CAN bus line. If there is any fault in the CAN bus lines, an incorrect diagnosis code may be set. In this case, the set diagnosis code is not highly reliable.
  • Before replacing the ECU, ensure that the communication circuit is normal.
 
 
OPERATION
ACC-ECU related signals are sent or received to and from between ASC-ECU and engine-ECU via CAN bus lines.
 
 
 
DIAGNOSIS CODE SET CONDITIONS
This diagnosis code is set when the engine-ECU malfunction has been detected.
 
 
 
PROBABLE CAUSES
  • Malfunction of engine-ECU
  • Malfunction of ASC-ECU
  • External noise interference
 
 
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnosis
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2.
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ).
 
STEP 2. M.U.T.-IIISE diagnosis code
Use M.U.T.-IIISE to check that any diagnosis code other than code No. U1013 is set in ASC-ECU.
Is the diagnosis code set?
Troubleshoot the relevant diagnosis code.
Go to Step 3.
 
STEP 3. M.U.T.-IIISE other system diagnosis code
Use M.U.T.-IIISE to check that the diagnosis code is set in the engine-ECU (Refer to GROUP 13A - Diagnosis code chart ).
Is the diagnosis code set?
Troubleshoot the relevant diagnosis code.
Go to Step 4.
 
STEP 4. Check whether the diagnosis code is set again.
Erase the diagnosis code.
Is diagnosis code No.U1013 set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ).
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How to Cope with Intermittent Malfunctions ).