[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP > SYMPTOM PROCEDURES > THE COMING-HOME LIGHT DOES NOT WORK NORMALLY.
Inspection Procedure 10: The coming home 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 coming home light function does not operate normally, the keyless entry system or the ETACS-ECU may have a problem. Or, the coming home 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 "Coming home light" with a customisation function.
  • 15 sec.
  • 30 sec.
  • 60 sec.
  • 180 sec.
Is it set to other than "Disabled"?
Go to Step 2.
Set "Coming home 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. M.U.T.-IIISE data list
Using the ETACS-ECU service data, check the ignition switch signal.
  • Turn the ignition switch to the "LOCK" (OFF) position.
 
Item No.Item nameNormal condition
79IG voltage1 V or less
OK: Normal condition is displayed.
Is the check result normal?
Go to Step 4.
Troubleshoot the ETACS-ECU (Refer to Inspection Procedure 2 "The ignition switch (IG1) signal is not received" ).
 
STEP 4. Check the headlamps.
When the lighting switch is operated, check that the headlamps illuminate/go off normally.
Is the check result normal?
Go to Step 5.
Troubleshoot the headlamps (Refer to trouble symptom chart ).
 
STEP 5. Retest the system.
The coming home light function 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.