Lancer L4-2.4L SOHC (2005)
3. Connect terminal No.73 to ground.
Q: Does the seat belt warning light illuminate?
YES: Replace the ETACS-ECU. Verify that the seat belt warning light illuminates normally.
NO: Go to Step 6.
STEP 6. Check the seat belt warning light bulb.
Q: Is the seat belt warning light bulb in good condition?
YES: Go to Step 7.
NO: Replace the bulb. Verify that the seat belt warning light illuminates normally.
STEP 7. Check the combination meter (printed-circuit board).