Lancer Sportback L4-2.4L (4B12) (2010)
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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 interior light auto-cut function.
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Turn the ignition switch to the "LOCK" (OFF) position.
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Open each door.
Q: Does scan tool MB991958 display the items "IG voltage", "ACC switch", "Dr door ajar switch", "As door ajar switch", "RR door ajar switch", and
"RL door ajar 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/Testing and Inspection/Scan Tool Testing and Procedures
STEP 4. Retest the system.
Check that the interior light automatic shutdown function works normally.
Q: Is the check result normal?
YES : The trouble can be an intermittent malfunction. (Refer to How to use Troubleshooting/inspection sevice points - How to cope with
Intermittent Malfunction).
NO : Replace the ETACS-ECU.
Trouble Symptom Chart
TROUBLE SYMPTOM CHART
Trouble Symptom Chart