Lancer L4-2.4L SOHC (2005)
1. Operate scan tool MB991958 according to the procedure below to display "ETACS ECU."
a. Select "SYSTEM SELECT."
b. Select "SWS."
c. Select "SWS MONITOR."
d. Select "DATA LIST."
e. Select "ETACS ECU."
2. Check that normal conditions are displayed on the items described in the table.
Q: Are normal conditions displayed on the "IG SW (IG1)" and "FRONT DOOR SW"?
Normal conditions are displayed for all the items : Go to Step 4.
The scan tool does not show the respective normal condition for item "IG SW (IG1)" : Refer to Inspection Procedure M-2 "ETACS-ECU
does not receive any signal from the ignition switch (IG1)."
The scan tool does not show the respective normal condition for item "FRONT DOOR SW" : Refer to Inspection Procedure M-4
"ETACS-ECU does not receive any signal from the driver's or the front passenger's door switch."
STEP 4. Check the input signal (by using the pulse check mode of the monitor).
Check the following switches and input signals:
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Key reminder switch
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All door switches
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Interior light loaded signal
