[Previous][Next]
DTC U1195 Coding not completed
 
 
caution
  • If diagnostic trouble code No. U1195 is stored, diagnose the CAN bus lines.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
DIAGNOSTIC FUNCTION
When the coding data is not registered, OSS-ECU stores diagnostic trouble code No.U1195.
 
 
JUDGMENT CRITERIA
Check Conditions
  • When all the following conditions are met.
    1. Coding is not completed.
    2. For 5 seconds since the start of the reception of ignition status signal (ON or during cranking) transmitted from ETACS-ECU.
Judgment Criterion
  • Any of the coding is not completed normally.
 
 
PROBABLE CAUSES
  • Malfunction of the CAN bus line
  • Variant coding for ETACS-ECU has not been implemented.
  • Malfunction of OSS-ECU
  • ETACS-ECU malfunction
 
 
DIAGNOSIS
STEP 1. Using scan tool (M.U.T-III), diagnose the CAN bus line.
(1)
cautionTo prevent damage to scan tool (M.U.T-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T-III).
Connect scan tool (M.U.T-III). Refer to "How to connect scan tool (M.U.T.-III) ."
(2) Turn the power supply mode of the engine switch to ON.
(3) Diagnose the CAN bus line.
(4) Turn the power supply mode of the engine switch to OFF.
Is the CAN bus line found to be normal?
Go to Step 2.
Repair the CAN bus line. (Refer to GROUP 54C, Diagnosis ).
 
STEP 2. Using scan tool (M.U.T-III), read the other system diagnostic trouble code.
Check again if the DTC is stored in the ETACS-ECU.
(1)
cautionTo prevent damage to scan tool (M.U.T-III), always turn the power supply mode of the engine switch to the OFF position before connecting or disconnecting scan tool (M.U.T-III).
Connect scan tool (M.U.T-III). Refer to "How to connect scan tool (M.U.T.-III) ."
(2) Erase the DTC.
(3) Turn the power supply mode of the engine switch to ON.
(4) Check if DTC is stored.
(5) Turn the power supply mode of the engine switch to OFF.
Is the DTC stored?
Perform troubleshooting for KOS (Refer to GROUP 54A, ETACS - Troubleshooting ). Then go to Step 3.
Go to Step 3.
 
STEP 3. Recheck for diagnostic trouble code.
Check again if the DTC is stored in the OSS-ECU.
(1) Erase the DTC.
(2) Turn the power supply mode of the engine switch from OFF to ON.
(3) Check if DTC is stored.
(4) Turn the power supply mode of the engine switch from ON to OFF.
Is the DTC stored?
Replace the OSS-ECU and register the VIN (Refer to ).
Intermittent malfunction is suspected (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to cope with Intermittent Malfunction ).