Inspection procedure B-3: Seat belt reminder does not work.


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


COMMENTS ON TROUBLE SYMPTOM




  • Electric motor switch (ON)
  • Driver’s seat belt switch
  • Passenger’s seat belt switch
  • Vehicle speed signal

PROBABLE CAUSES



  • Malfunction of the ETACS-ECU
  • Malfunction of the driver’s seat belt switch
  • Malfunction of the passenger’s seat belt switch
  • Malfunction of the combination meter
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE


STEP 1. M.U.T.-III CAN bus diagnostics



Q. Is the check result normal?





STEP 2. Check the diagnosis code of the ETACS-ECU or ASC-ECU.



Q. Is the diagnosis code set?





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




  • Turn the electric motor switch to the "ON" position.
  • Remove the each inserted seatbelt.
Item No.
 Item name
 Normal condition
30
 IG SW (IG1) /Power SW(ON)
 ON
50
 Driver’s seatbelt(Buckle SW)
 Being turned ON from OFF
51
 Passenger seatbelt(Buckle SW)
74
 Buzzer
 ON
OK: Normal conditions are displayed for all the items.

Q. Is the check result normal?









STEP 4. M.U.T.-III other system actuator test




  • Item 07: Indicator1

Q. Is the check result normal?





STEP 5. Retest the system.



Q. Is the check result normal?