[Previous][Next]
DTC U1195: Coding not completed
 
 
caution
  • If DTC U1195 is set, diagnose the CAN bus lines.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
DTC SET CONDITION
When the coding data is not registered, KOS&OSS-ECU sets diagnostic trouble code No.U1195.
noteWhen KOS&OSS-ECU is new, DTC No.U1195 are set simultaneously.
 
 
TECHNICAL DESCRIPTION (COMMENT)
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.
 
 
TROUBLESHOOTING HINTS
  • Malfunction of the CAN bus line
  • Variant coding for ETACS-ECU has not been implemented.
  • Malfunction of KOS&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 set 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 set.
(5) Turn the power supply mode of the engine switch to "OFF".
Is the DTC set?
Perform troubleshooting for ETACS (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 set in the KOS&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 set.
(4) Turn the power supply mode of the engine switch from "ON" to "OFF".
Is the DTC set?
Replace KOS&OSS-ECU and register the ID codes (Refer to ).
Intermittent malfunction is suspected (Refer to GROUP 00, How to Use Troubleshooting/Inspection Service Points - How to cope with Intermittent Malfunction ).