Eclipse RS L4-2350cc 2.4L SOHC MFI (2002)
STEP 2. Check the input signal by using service data of the SWS monitor.
Turn the ignition switch to the "ON" position before checking input signals from the ignition switch (IG1).
Select "ETACS-ECU" (DATA LIST), and check that normal conditions are displayed on the items described in the table.
Q: Does the scan tool display "IG SW (IG1)" as normal condition?
YES: Go to Step 3.
NO: Refer to Inspection Procedure O-2 "ETACS-ECU does not receive a signal from the ignition switch (IG1)."
STEP 3. Check the input signal (by using the Pulse Check).
Check input signal from the driver's side seat belt switch.
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When the driver's seat belt is fastened, check if scan tool MB991502 sounds or not.
Q: Does scan tool MB991502 sound when the driver's side seat belt is fastened?
YES: Go to Step 4.
NO: Refer to Inspection Procedure P-3 "ETACS-ECU does not receive a signal from the driver's side seat belt switch."
STEP 4. Check at ETACS-ECU connector C-118 in order to check the ground circuit to the seat belt warning light.
1. Disconnect ETACS-ECU connector C-118, and measure at the wiring harness side.
2. Turn the ignition switch to the "ON" position.
