Lancer LS L4-2.0L SOHC (2002)
STEP 4. Check at ETACS-ECU connector C-228 in order to check the ground circuit to the seat belt warning light.
1. Disconnect ETACS-ECU connector C-228, and measure at the wiring harness side.
2. Turn the ignition switch to the "ON" position.
3. Connect terminal No. 73 to ground.
Q: Does the seat belt warning light illuminate?
YES: Replace the ETACS-ECU. Check that the seat belt warning light illuminates normally.
NO: Go to Step 5.
STEP 5. Check the seat belt warning light bulb.
Q: Is the seat belt warning light bulb in good condition?
YES: Go to Step 6.
NO: Replace the bulb. Check that the seat belt warning light illuminates normally.
