[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP > SYMPTOM PROCEDURES > THE WELCOME LIGHT DOES NOT WORK NORMALLY.
Inspection Procedure 9: The welcome light function does not work normally.
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
COMMENTS ON TROUBLE SYMPTOM
When the welcome light function does not operate normally, the keyless entry system or the ETACS-ECU may have a problem. Or, the welcome light function may have been set to disabled using the customisation function.
 
 
PROBABLE CAUSES
  • Malfunction of the keyless entry system
  • Malfunction of the ETACS-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. ETACS-ECU customise function check.
Check that any one of the followings other than "Disabled" is set for "Welcome light" with a customisation function.
  • Small lamp
  • Head lamp
Is it set to other than "Disabled"?
Go to Step 2.
Set "Welcome light" to any one other than "Disabled" with a customise function (Refer to ).
 
STEP 2. M.U.T.-IIISE diagnosis code
Check if diagnosis code is set in the ETACS-ECU.
Is the diagnosis code set?
Troubleshoot the ETACS-ECU (Refer to ).
Go to Step 3.
 
STEP 3. Check the keyless entry system operation
Check that the keyless entry system operation normally.
Is the check result normal?
Go to Step 4.
Troubleshoot the keyless entry system (Refer to GROUP 42A - Troubleshooting <Vehicles without KOS> or GROUP 42B - Troubleshooting <Vehicles with KOS>).
 
STEP 4. Check the tail lamps and headlamps.
When the lighting switch is operated, check that the tail lamps and headlamps illuminate/go off normally.
Is the check result normal?
Go to Step 5.
Troubleshoot the tail lamps and headlamps (Refer to trouble symptom chart ).
 
STEP 5. Retest the system.
The welcome light should work normally.
Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.