Lancer Sportback L4-2.4L (4B12) (2010)
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1. Connect scan tool MB991958. Refer to "How to connect scan too (M.U.T.-III)." See: Reading and Clearing Diagnostic Trouble Codes/How to
Connect the Scan Tool (M.U.T.-III)
2. Turn the ignition switch to the "ON" position.
3. Check whether the ETACS-ECU related DTC is set.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
YES : Diagnose the ETACS-ECU.
NO : Go to Step 2.
STEP 2. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to the ignition key cylinder illumination light function.
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Turn the ignition switch to the "LOCK" (OFF) position.
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Remove the ignition key from the ignition key cylinder.
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Open the driver's door.
Q: Does scan tool MB991958 display the items "Dr door unlock", "Dr door ajar switch", and "Handle lock switch" as normal condition?
YES [Normal conditions are displayed for all the items.] : Go to Step 3.
NO [Normal condition is not displayed for item No. 228.] : Troubleshoot the ETACS-ECU. Refer to Diagnosis - Inspection Procedure 4
"ETACS-ECU does not receive any signal from the front door lock actuator". See: Computers and Control Systems/Body Control Module/Testing
and Inspection/Scan Tool Testing and Procedures/Input Signal Procedures/Inspection Procedure 4
