[Previous][Next]
Code No. U1195 Coding not completed
 
 
caution
  • If there is any problem in the CAN bus lines, an incorrect diagnostic trouble 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.
  • When the diagnostic trouble code U1195 is set in ASC-ECU, the diagnostic trouble code may also be set in ETACS-ECU. When the diagnostic trouble code is set in ETACS-ECU, carry out the diagnosis of the diagnostic trouble code for ETACS-ECU first.
  • When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor and the G and yaw rate sensor (Refer to and ).
 
 
OPERATION
This diagnostic trouble code will be set when the variant coding for the ETACS-ECU has not been implemented.
 
 
DIAGNOSTIC TROUBLE CODE SET CONDITIONS
This diagnostic trouble code is set when the variant coding for ETACS-ECU has not been implemented.
 
 
PROBABLE CAUSES
  • The CAN bus line is defective.
  • Malfunction of the ETACS-ECU
  • ETACS-ECUs have been interchanged between two vehicles.
  • The ACS-ECU, which was used on another vehicle, is installed on this vehicle.
  • Malfunction of the hydraulic unit assembly (integrated with ASC-ECU)
  • Noise interference
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T.-III), diagnose the CAN bus lines.
Use scan tool (M.U.T.-III) to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 3.
Repair the CAN bus line (Refer to GROUP 54C, Troubleshooting ). On completion, go to Step 2.
 
STEP 2. Diagnostic trouble code recheck after resetting CAN bus lines
Is diagnostic trouble code No. U1195 set?
Go to Step 3.
This diagnosis is complete.
 
STEP 3. Use scan tool (M.U.T.-III) to confirm a diagnostic trouble code of other systems.
Check whether a diagnostic trouble code is set in the ETACS-ECU (Refer to GROUP 54A, ETACS - Diagnostic Trouble Code Chart ).
Is the diagnostic trouble code set?
Follow the relevant diagnostic trouble code procedure. Then go to Step 7.
Go to Step 4.
 
STEP 4. ETACS-ECU coding data check
Using scan tool (M.U.T.-III), check if any abnormality is present to the coding data which are stored in the ETACS-ECU (Refer to GROUP 00, Coding Reference Table ).
Is the check result normal?
Go to Step 5.
Replace ETACS-ECU (Refer to GROUP 54A, ETACS-ECU ). Then go to Step 7.
 
STEP 5. Check part number of ASC-ECU
Check the part number of ASC-ECU.
Is the check result normal?
Go to Step 6.
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Then go to Step 7.
 
STEP 6. Diagnostic trouble code recheck
Check again if the diagnostic trouble code is set.
(1) Erase the set diagnostic trouble code.
(2) Ignition switch: "LOCK" (OFF)
(3) Ignition switch: "ON"
Is diagnostic trouble code No. U1195 set?
Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ). Then go to Step 7.
The trouble can be an intermittent malfunction (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).
 
STEP 7. Diagnostic trouble code recheck.
Check again if the diagnostic trouble code is set.
(1) Erase the set diagnostic trouble code.
(2) Ignition switch: "LOCK" (OFF)
(3) Ignition switch: "ON"
Is diagnostic trouble code No. U1195 set?
Return to Step 3.
This diagnosis is complete.