Code No. U119A:
Chassis No. mismatch
caution |
- If diagnosis
code No. U119A is set, be sure to diagnose the CAN bus line.
- Before replacing the ECU, ensure that the power supply circuit, the earth circuit
and the communication circuit are normal.
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DIAGNOSTIC FUNCTION
The headlamp automatic levelling-ECU will set diagnosis code No.U119A when the VIN, which
is stored in itself, does not correspond to the VIN, which is exchanged via CAN bus lines.
PROBABLE CAUSES
- Malfunction of CAN bus line
- The headlamp automatic levelling-ECU, which was fitted on another vehicle, is fitted.
- The engine-ECU, which was used on another vehicle, is installed on this vehicle.
- Malfunction of headlamp automatic levelling-ECU
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 the VIN.
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(1)Use the M.U.T.-III to read out the VIN from the headlamp automatic levelling-ECU.
.....
Select "AFS/ACL/Leveling" on the system selection screen.
.....
Select "Coding."
.....
Select "Chassis No./VIN Information."
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(2)Check that the VIN, which is stored in the headlamp automatic levelling-ECU, corresponds to
that written in the Vehicle Certificate of Title and Registration.
|
Q.
Is the check result normal?
Go to Step 3.
Replace the headlamp automatic levelling-ECU (Refer to
).
STEP 3. Check the VIN.
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(1)Use the M.U.T.-III to read out the VIN from the engine-ECU.
.....
On the system selection screen, select "MPI/GDI/Diesel."
.....
Select "Coding."
.....
Select "Chassis No./VIN Information."
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(2)Check whether the VIN, which is stored in the engine ECU, corresponds to that written
in the Vehicle Certificate of Title and Registration.
|
Q.
Is the check result normal?
Go to Step 4.
Replace the engine-ECU (Refer to GROUP 13B - Engine-ECU
<6B3> or GROUP
13C - Engine-ECU
<4N1>).
STEP 4. Diagnosis code recheck
Check again if the diagnosis code is set in the headlamp automatic levelling-ECU.
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(1)Erase the diagnosis code.
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(2)Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
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(3)Check if the diagnosis code is set.
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Q.
Is the diagnosis code set?
Replace the headlamp automatic levelling-ECU (Refer to
).
The procedure is complete.