Lancer Evolution L4-2.0L Turbo (4B11T/C) (2010)
1. Connect scan tool MB991958. Refer to "How to connect scan tool (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. Refer to ETACS, Diagnosis. See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Descriptions/ETACS
NO : Go to Step 3.
STEP 3. Using scan tool MB991958, check data list.
Use the ETACS-ECU data list to check the signals related to the front dome light.
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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 each door.
Q: Does scan tool MB991958 display the items "Dr door unlock", "IG voltage", "Dr door ajar switch", "As door ajar switch", "RR door ajar switch",
"RL door ajar switch" and "Handle lock switch" as normal condition?
YES : (Normal conditions are displayed for all items.) Go to Step 4.
NO : (Normal condition is not displayed.) Troubleshoot the ETACS-ECU. Refer to ETACS, Diagnosis, Input signal chart. See: Body and
Frame/Body Control Systems/Body Control Module/Testing and Inspection/Scan Tool Testing and Procedures/Trouble Symptom Chart For Input