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ASC-ECU receives the vehicle information stored in the ETACS-ECU via CAN bus lines.
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ASC-ECU communicates with ETACS-ECU via CAN bus lines. This diagnosis code is set when
the vehicle information received from the ETACS-ECU is invalid.
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- Malfunction of ETACS-ECU
- Malfunction of engine ECU
- ETACS-ECUs have been interchanged between two vehicles.
- Malfunction of ASC-ECU
- External noise interference
- ASC-ECUs have been interchanged between two vehicles.
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Use M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnostics Table ). On
completion, go to Step 2.
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Q.
Is diagnosis code No.U1417 set?
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This diagnosis is complete.
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Use M.U.T.-III to check whether any diagnosis code related to vehicles information is
set or not by the ETACS-ECU or engine ECU.
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Q.
Is the diagnosis code set?
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Troubleshoot for the relevant diagnosis code, and then go to Step 9
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Refer to GROUP 00 - Coding List .
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Q.
Is the check result normal?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ),
and then go to Step 7.
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Refer to GROUP 00 - Coding List .
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Q.
Is the check result normal?
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NO (1600-petrol) : Replace the engine ECU (Refer to GROUP 13D - engine ECU ),
and then go to Step 7.
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NO (1800, 2000-petrol) : Replace the engine ECU (Refer to GROUP 13A - engine ECU ),
and then go to Step 7.
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NO (1800-diesel) : Replace the engine ECU (Refer to GROUP 13B - engine ECU ),
and then go to Step 7.
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Check the part number of ETACS-ECU.
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Q.
Is the check result normal?
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Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ),
and then go to Step 7.
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Check the part number of ASC-ECU.
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Q.
Is the check result normal?
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Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ),
and then go to Step 9.
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Q.
Is diagnosis code No.U1417 set?
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Replace the hydraulic unit (integrated with ASC-ECU) (Refer to ),
and then go to Step 9.
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The trouble can be an intermittent malfunction (Refer to GROUP 00 - How
to Cope with Intermittent Malfunctions ).
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Q.
Is diagnosis code No.U1417 set?
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This diagnosis is complete.
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