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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
- Engine ECU malfunction
- ETACS-ECUs have been interchanged between two vehicles.
- ASC-ECU malfunction
- 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 Diagnosis 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 the ETACS-ECU-related or engine ECU-related diagnosis
code is set or not.
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Q.
Is the diagnosis code set?
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Troubleshoot for the relevant diagnosis code.
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Refer to GROUP 00 - Coding List .
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Vehicle line Transmission
OK (Vehicles for 5M/T): 5MT OK (Vehicles for 6M/T): 6MT OK (Vehicles for CVT): CVT OK (Vehicles for 6A/T): 6AT
Engine type
OK (Vehicles for BSY): DIESEL 2.0L OK (Vehicles for 4HN): DIESEL 2.2L OK (Vehicles for 4B1): D4 V.V.T. 2.4L OK (Vehicles for 6B3): S4 MIVEC
Engine power
OK (Vehicles for 4HN, 4B1, 6B3): Normal OK (Vehicles for BSY): High power
Chassis type for A.S.C.
OK (Vehicles for BSY, 4HN, 4B1): Type 3 OK (Vehicles for 6B3): Type 4
Final drive
OK (Vehicles for 2WD): Front Drive OK (Vehicles for 4WD): 4WD FF Base
Transfer
OK (Vehicles for 2WD): 2WD OK (Vehicles for 4WD): ECC
SAS 4WD TCM
OK (Vehicles for 5M/T, 6M/T): Not present OK (Vehicles for CVT, 6A/T): Present
ACDAYC
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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 (2000) : Replace the engine ECU (Refer to GROUP 13A - engine ECU ),
and then go to Step 7.
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NO (2200) : Replace the engine ECU (Refer to GROUP 13E - engine ECU ),
and then go to Step 7.
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NO (2400) : Replace the engine ECU (Refer to GROUP 13D - engine ECU ),
and then go to Step 7.
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NO (3000) : Replace the engine ECU (Refer to GROUP 13C - 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 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 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 Malfunction ).
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Q.
Is diagnosis code No.U1417 set?
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This diagnosis is complete.
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