DTC U1195 Coding not completed
caution
If there is any problem in the CAN bus lines, an incorrect DTC may be set. Prior to this diagnosis, diagnose the CAN bus lines.
Whenever the ECU is replaced, ensure that the communication circuit is normal.
OPERATION
FCM/LDW/AHB-ECU receives the vehicle information stored in ETACS-ECU via CAN bus lines.
DTC SET CONDITION
This DTC is set when the abnormality below is detected:
Coding has not been performed.
PROBABLE CAUSES
Malfunction of the CAN bus line
Coding not implemented
Malfunction of the ETACS-ECU
Malfunction of the FCM/LDW/AHB-ECU
DIAGNOSIS
STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.
Use scan tool to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting
).
STEP 2. Check the scan tool other system DTC.
Check the ETACS-ECU DTC.
Is the DTC set?
Troubleshoot the relevant DTC (Refer to GROUP 54A - Troubleshooting
).
Go to Step 3
STEP 3. Check whether the DTC is set again.
Check again if the DTC is set in the FCM/LDW/AHB-ECU.
(1)
Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(2)
Hold the ignition switch ON for five seconds.
(3)
Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(4)
Hold the ignition switch ON for five seconds.
(5)
Check if DTC is set.
Is the DTC set?
Replace the FCM/LDW/AHB-ECU (Refer to
).
This diagnosis is complete.
![[Previous]](../../../buttons/fprev.png)
![[Next]](../../../buttons/fnext.png)
Go to Step 2
Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ).Troubleshoot the relevant DTC (Refer to GROUP 54A - Troubleshooting ).Go to Step 3Replace the FCM/LDW/AHB-ECU (Refer to ).This diagnosis is complete.