[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP > SYMPTOM PROCEDURES > HEADLAMPS DO NOT ILLUMINATE WHEN THE PASSING SWITCH IS TURNED ON.
Inspection Procedure 3: The headlamps do not illuminate when the passing switch is turned ON.
 
 
caution
  • Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.
 
 
 
 
COMMENTS ON TROUBLE SYMPTOM
If both headlamps (low-beam and high-beam) do not illuminate, the passing switch input circuit or ETACS-ECU may have a problem.
 
 
PROBABLE CAUSES
  • Malfunction of column switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. 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 2.
 
STEP 2. Check the operation of the headlamps.
Check that the high-beam headlamps illuminate normally.
Is the check result normal?
Go to Step 3.
Refer to Inspection procedure 1 "None of the high-beam headlamps illuminate." ().
 
STEP 3. Retest the system
Check that the headlamps (low-beam and high-beam) illuminates normally when turning ON the passing switch.
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.