Inspection procedure B-1: Lamp Reminder Buzzer 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. M.U.T.-III diagnosis code.



Q. Is the diagnosis code set?





STEP 2. M.U.T.-III data list




  • Turn the ignition switch to the "LOCK" (OFF) position.
  • Open the drive’s door.
  • Turn the tail lamp or 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
 Any of items is ON
59
 Tail lamp output
OK: Normal conditions are displayed for all the items.

Q. Is the check result normal?









STEP 3. Retest the system.



Q. Is the check result normal?