Lancer L4-2.4L SOHC (2005)
Q: Does scan tool MB991958 sound when the driver's side seat belt is fastened?
Yes: Go to Step 4.
No: Refer to Inspection Procedure N-3 "ETACS-ECU does not receive any signal from the driver's side seat belt switch.
STEP 4. Check ETACS-ECU connector C-228 for loose, corroded or damaged terminals, or terminals pushed back in the connector.
Q: Is ETACS-ECU connector C-228 in good condition?
YES: Go to Step 5.
NO: Repair or replace the damaged component(s). Refer to Harness Connector Inspection. Verify that the seat belt warning light illuminates normally.
STEP 5. 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.