Inspection Procedure 6: The headlamp automatic-shutdown function does not work normally.


caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.


COMMENTS ON TROUBLE SYMPTOM




  • Ignition switch (IG1)
  • Driver’s door switch
  • Tail lamp switch
  • Headlamp switch

PROBABLE CAUSES



  • Malfunction of the driver’s door switch
  • Malfunction of the column switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. Check of adjustment details for the headlamp automatic-shutdown



Q. Is the check result normal?





STEP 2. M.U.T.-III diagnosis code.



Q. Is the diagnosis code set?





STEP 3. M.U.T.-III data list




  • Turn the ignition switch to the "LOCK" (OFF) position.
  • Open the drive’s door.
  • Turn the headlamp switch to the ON position.
Item No.
 Item name
 Normal condition
19
 Drive’s door switch
 ON
30
 Ignition switch(IG1)
 OFF
60
 Headlamp output
 ON
OK: Normal conditions are displayed for all the items

Q. Are the check result normal?









STEP 4. Retest the system.



Q. Is the check result normal?