Code No.U1195 Coding not completed
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- If diagnosis code No. U1195 is set, be sure to diagnose the CAN bus line.
- Whenever the ECU is replaced, ensure that the communication circuit is normal.
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DIAGNOSTIC FUNCTION
If the vehicle information data is not registered to the headlamp automatic levelling-ECU, the headlamp automatic levelling-ECU sets diagnosis code No. U1195.
JUDGEMENT CRITERIA
With the global coding counter value "0," if all the global coding data (vehicle information) are not set, the headlamp automatic levelling-ECU determines that a problem has occurred.
PROBABLE CAUSES
- Malfunction of CAN bus line
- Malfunction of ETACS-ECU
- Malfunction of headlamp automatic levelling-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.
Q.
Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting 
).
STEP 2. M.U.T.-III other system diagnosis code
Check if diagnosis code is set in the ETACS-ECU.
Q.
Is the diagnosis code set?
Troubleshoot the ETACS-ECU (Refer to ).
Go to Step 3.
STEP 3. Diagnosis code recheck
Check again if the diagnosis code is set in the headlamp automatic levelling-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
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(3)Check if the diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the headlamp automatic levelling-ECU (Refer to ).
A poor connection, open circuit, or other intermittent malfunction in the CAN bus line between the headlamp automatic levelling-ECU and ETACS-ECU. (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points - How to Cope with Intermittent Malfunction .)