Galant L4-2.4L (4G69) (2004)
STEP 4. Check the input signal by using "FUNCTION DIAG." menu of the SWS monitor.
Check the input signals from the following switches:
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Ignition switch: OFF -> ON
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Driver's seat belt: Unfastened
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All door: Closed
1. Operate scan tool MB991958 according to the procedure below to display "OTHER ALARM"
a. Select "Interactive Diagnosis."
b. Select "System Select."
c. Select "SWS."
d. Select "SWS MONITOR."
e. Select "Function Diag."
f.
Select "BUZZER."
g. Select "OTHER ALARM"
2. Check that normal conditions are displayed for the items described in the table.
NOTE: Turn the ignition switch from the OFF position to the ON position. Then item No.43 should be ON for approximately six seconds only.
Q: Does scan tool MB991958 display the items "IG SW (IG1)" and "BUZZER" as normal condition?
Normal conditions are displayed for all the items: Replace the ETACS-ECU. Verify that the seat belt tone alarm function works normally.
Normal condition is not displayed for "IG SW (IG1)": Refer to Inspection Procedure M-2 "ETACS-ECU does not receive any signal from the
ignition switch (IG1)."
Normal condition is not displayed for "BUZZER": Replace the ETACS-ECU. Verify that the seat belt tone alarm function works normally.
Inspection Procedure B-4
Tone Alarm: Door ajar Warning Buzzer Function does not Work Normally.
Door Ajar Tone Alarm Function Circuit
NOTE: This troubleshooting procedure requires the use of scan tool MB991958 and SWS monitor kit MB991813. For details on how to use the SWS
monitor, refer to "How to use SWS monitor." See: Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes/How To Use
SWS Monitor
CIRCUIT OPERATION
The ETACS-ECU controls the door-ajar warning tone alarm, based on the signals from the switches and sensors below.
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Ignition switch (IG1): ON