Code No.U1195:
Coding not completed
Code No.U1197: Coding data unavailable
| caution |
- If
there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to
this diagnosis, diagnose the CAN bus lines (Refer to GROUP 54C, CAN Bus Diagnostics Table
 ).
- Whenever ECU is replaced, ensure that the CAN bus lines are normal.
|
OPERATION
EPS-ECU receives variant coding data from the ETACS-ECU.
DIAGNOSIS CODE SET CONDITIONS
- The EPS-ECU coding is not completed.
- The coding data is not sent from the ETACS-ECU, and the microcomputer determines
that there is a problem in the system.
PROBABLE CAUSES
- Malfunction of CAN bus line
- Malfunction of the EPS-ECU
- Malfunction of the ETACS-ECU
|
|
STEP 1. M.U.T.-III CAN bus diagnostics
|
|
|
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 - Troubleshooting ).
On completion, go to Step 2.
|
|
|
|
|
|
STEP 2. Use M.U.T.-III to confirm a diagnosis code of other systems.
|
|
|
Check if the ETACS-ECU sets a diagnosis code.
|
|
|
Q.
Is the diagnosis code set?
|
|
|
Diagnose the ETACS-ECU (Refer to GROUP 54A - Troubleshooting ).
|
|
|
|
|
|
Go to Step 3.
|
|
|
|
|
|
STEP 3. Check whether the diagnosis code is set again.
|
|
|
(1)Erase the diagnosis code.
|
|
|
(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
|
|
|
(3)Check if the diagnosis code is set.
|
|
|
Q.
Is diagnosis code U1195 or U1197 set?
|
|
|
Replace the EPS-ECU (Refer to ). Then go to Step
4.
|
|
|
|
|
|
Intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent
Malfunction ).
|
|
|
|
|
|
STEP 4. Check whether the diagnosis code is set again.
|
|
|
(1)Erase the diagnosis code.
|
|
|
(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
|
|
|
(3)Check if the diagnosis code is set.
|
|
|
Q.
Is diagnosis code U1195 or U1197 set?
|
|
|
Return to Step 1.
|
|
|
|
|
|
This diagnosis is complete.
|
|
|
|