Code No. U1190:
No receive fault detect signal
JUDGEMENT CRITERIA
ETACS-ECU sends the diagnosis code (U code) detection permission or prohibition signal
to each ECU connected to the CAN bus line. If the multivision display cannot receive the diagnosis
code (U code) detection permission or prohibition signal for 5 seconds after turning the ignition
switch to "ON" position, diagnosis code No. U1190 will be set.
PROBABLE CAUSES
- Malfunction of the ETACS-ECU
- Malfunction of CAN bus line
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. Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the combination meter.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch to "ON" position.
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(3)On completion, check that the diagnosis code is set again.
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Q.
Is the diagnosis code set?
Replace the ETACS-ECU. Then go to Step 3.
The procedure is complete.
STEP 3. Check whether the diagnosis code is set again.
Recheck if the diagnosis code is set in the combination meter.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch to "ON" position.
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(3)On completion, check that the diagnosis code is set again.
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Q.
Is the diagnosis code set?
Return to Step 1.
The procedure is complete.