Code No. U1417 Variant coding value invalid (includes faulty installation)


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, Trouble code diagnosis ).
  • If diagnosis code No.U1417 is set in ASC-ECU, always diagnose the CAN bus lines. If there is any fault in the CAN bus lines, an incorrect diagnosis code may be set. In this case, the set diagnosis code is not highly reliable.
  • Before replacing the ECU, ensure that the communication circuit is normal.
  • When diagnosis code No.U1417 is set in ASC-ECU, the diagnosis code may also be set in ETACS-ECU. When the diagnosis code is set in ETACS-ECU, carry out the diagnosis of the diagnosis code for ETACS-ECU first.
  • When the hydraulic unit (integrated with ASC-ECU) is replaced, always carry out the calibration of the steering wheel sensor, the G and yaw rate sensor and brake fluid pressure sensor (Refer to , and ).

OPERATION
ASC-ECU receives the vehicle information stored in the ETACS-ECU via CAN bus lines.

DIAGNOSIS CODE SET CONDITIONS
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.

PROBABLE CAUSES

  • 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.

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 3.
Repair the CAN bus lines (Refer to GROUP 54C - CAN Bus Diagnosis table ). On completion, go to Step 2.

STEP 2. Diagnosis code recheck after resetting CAN bus lines

Q. Is diagnosis code No.U1417 set?
Go to Step 3.
This diagnosis is complete.

STEP 3. M.U.T.-III other system diagnosis code
Use M.U.T.-III to check whether the ETACS-ECU-related or engine ECU-related diagnosis code is set or not.

Q. Is the diagnosis code set?
Troubleshoot for the relevant diagnosis code.
Go to Step 4.

STEP 4. ETACS-ECU coding data check
Refer to GROUP 00 - Coding List .
Vehicle line
    OK: LANCER H/B
Transmission
    OK (Vehicles for 5M/T): 5MT
    OK (Vehicles for 6M/T): 6M/T
    OK (Vehicles for CVT): CVT
    OK (Vehicles for 4A/T): AT
    OK (Vehicles for TC-SST): TC-SST
Engine type
    OK (Vehicles for 4A9): 1.5L D4 MPI VVT
    OK (Vehicles for 4B10): 1.8L D4 MPI VVT
    OK (Vehicles for 4B11-T/C): 2.0L D4 VVT T/C
    OK (Vehicles for BWC): BSY or BWC
Engine power
    OK (Vehicles for 4A9, 4B10, 4B11-T/C): Normal
    OK (Vehicles for BWC): High power
Chassis type for A.S.C.
    OK (Except for RALLIART): Type 1 or Type 2 or Type 3 or Type 4 or Type 5
    OK (RALLIART): Type 6
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): ACD
SAS
    OK: Present
4WD
    OK: Not present
TCM
    OK (Vehicles for 5M/T, 6M/T): Not present
    OK (Vehicles for CVT, 4A/T, TC-SST): Present
ACDAYC
    OK (Except for RALLIART): Not present
    OK (RALLIART): Present

Q. Is the check result normal?
Go to Step 5.
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ), and then go to Step 7.

STEP 5. Engine ECU coding data check
Refer to GROUP 00 - Coding List .

Q. Is the check result normal?
Go to Step 6.
NO (4A9) : Replace the engine ECU (Refer to GROUP 13A - engine ECU ), and then go to Step 7.
NO (4B1) : Replace the engine ECU (Refer to GROUP 13B - engine ECU ), and then go to Step 7.
NO (BWC) : Replace the engine ECU (Refer to GROUP 13D - engine ECU ), and then go to Step 7.
NO (4B1-T/C) : Replace the engine ECU (Refer to GROUP 13C - engine ECU ), and then go to Step 7.

STEP 6. Check the part number of ETACS-ECU
Check the part number of ETACS-ECU.

Q. Is the check result normal?
Go to Step 7.
Replace the ETACS-ECU (Refer to GROUP 54A - ETACS-ECU ), and then go to Step 7.

STEP 7. Check the part number of ASC-ECU
Check the part number of ASC-ECU.

Q. Is the check result normal?
Go to Step 8.
Replace the hydraulic unit (ASC-ECU) (Refer to ), and then go to Step 9.

STEP 8. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.U1417 set?
Replace the ASC-ECU (Refer to ), and then go to Step 9.
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).

STEP 9. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.U1417 set?
Return to Step 1.
This diagnosis is complete.