Code No.U1195
Coding not completed
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- If the diagnosis
code No. U1195 is set, be sure to diagnose the CAN bus line.
- Before replacing the ECU, ensure that the power supply circuit, the earth circuit
and the communication circuit are normal.
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DIAGNOSTIC FUNCTION
If the vehicle information data is not registered to the LDW-ECU, the LDW-ECU sets the
diagnosis code No. U1195.
PROBABLE CAUSES
- Malfunction of the CAN bus
- Variant coding for ETACS-ECU has not been implemented.
- Malfunction of ETACS-ECU
- Malfunction of the LDW-ECU
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-III CAN bus diagnosis
Use M.U.T.-III to diagnose the CAN bus lines.
Q.
Is the check result normal?
Go to Step 2
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table 
). On
completion, go to Step 2.
STEP 2. M.U.T.-III other system diagnosis code
Use M.U.T.-III to check that the diagnosis code No.B222C is set in the ETACS-ECU.
Q.
Is the diagnosis code set?
Diagnose the ETACS-ECU (Refer to GROUP 54A, Troubleshooting ),
and then go to Step 4.
Go to Step 3
STEP 3. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the LDW-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 No.U1195 set?
Replace the LDW-ECU, and then go to Step 4.
Intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/How
to Cope with Intermittent Malfunctions ).
STEP 4. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set to the LDW-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 No.U1195 set?
Return to Step 1.
This diagnosis is complete.