2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP > SYMPTOM PROCEDURES > HIGH-BEAM INDICATOR LAMP DOES NOT ILLUMINATE NORMALLY.
Inspection Procedure 4: The high-beam indicator lamp does not illuminate.
 
 
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 the high-beam indicator does not illuminate normally, the harness in the CAN bus lines, connector(s), ETACS-ECU, or combination meter may have a problem.
 
 
PROBABLE CAUSES
  • Malfunction of the ETACS-ECU
  • Malfunction of combination meter
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Headlamp (high-beam) check
Check that the headlamps (high-beam) illuminate/extinguish normally when the lighting switch is operated.
Is the check result normal?
Go to Step 2.
Refer to Inspection Procedure 1 "None of the high-beam headlamps illuminate." .
 
STEP 2. M.U.T.-IIISE CAN bus diagnostics
Use the M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 3.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 3. 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 4.
 
STEP 4. M.U.T.-IIISE other system special function
Using M.U.T.-IIISE, select "Test" from the special function of the combination meter. Execute the following item to check the high beam indicator (Refer to Combination Meter ).
  • Item 7: Illumination (AUTO)
  • Item 9: Indicator (AUTO)
Is the check result normal?
Go to Step 5.
Troubleshoot the combination meter. Refer to .
 
STEP 5. Retest the system
Check that the high beam indicator illuminate 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.