[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > HEADLAMP > SYMPTOM PROCEDURES > HEADLAMP AUTOMATIC SHUTDOWN FUNCTION DOES NOT WORK NORMALLY.
Inspection Procedure 5: The headlamp automatic shutdown 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.
 
 
 
 
OPERATION
The ETACS-ECU operates this function in accordance with the input signals from column switch (lighting switch), ignition switch (IG1), and driver's door switch.
 
 
COMMENTS ON TROUBLE SYMPTOM
If the headlamp automatic shutdown function does not work normally, the above described input circuits or ETACS-ECU may have a problem. Also, it may be possible that the headlamp automatic shutdown function is set to "Disable" through customisation.
 
 
PROBABLE CAUSES
  • Malfunction of driver's door switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors
 
 
DIAGNOSIS PROCEDURE
STEP 1. Customise function check
Use the ETACS-ECU customise function to check that the "Head lamp auto cut customize" is set to "Enable (B-spec.)"
Is the check result normal?
Go to Step 2.
Use the ETACS-ECU customise function to set the "Head lamp auto cut customize" to "Enable (B-spec.)".
 
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
Use the ETACS-ECU service data to check the signals related to the operation of headlamp automatic shutdown function.
  • Turn the ignition switch to the "LOCK" (OFF) position.
  • Turn the lighting switch to the "TAIL" position.
 
Item No.Item nameNormal condition
79IG voltage1 V or less
14Headlamp switch (Tail)ON
  • Turn the lighting switch to the "HEAD" position.
 
Item No.Item nameNormal condition
15Headlamp switchON
  • Open the driver's door.
 
Item No.Item nameNormal condition
81Driver’s door ajar switchOpen
OK: Normal conditions are displayed for all the items.
Is the check result normal?
Normal conditions are displayed for all the items. : Go to Step 4.
Normal condition is not displayed for item No. 79. : Troubleshoot the ETACS-ECU. Refer to Inspection Procedure 2 "The ignition switch (IG1) signal is not received" .
Normal condition is not displayed for item No. 14 or 341. : Troubleshoot the ETACS-ECU. Refer to Inspection Procedure 11 "The column switch signal is not received" .
Normal condition is not displayed for item No. 81. : Troubleshoot the ETACS-ECU. Refer to Inspection Procedure 5 "The front door switch (driver’s side) signal is not received" .
 
STEP 4. Retest the system
Check that the headlamp automatic shutdown function works 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.