Outlander AWD 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. 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 taillight illumination.
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Turn the ignition switch to the "ACC" position.
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Turn the taillight switch to the "ON" position.
Q: Does scan tool MB991958 display the items "Taillight" as normal condition?
YES [Normal condition is displayed for item.] : Go to Step 4.
NO [Normal condition is not displayed for item No. 218.] : Troubleshoot the ETACS-ECU. Refer to Inspection Procedure 12 "ETACS-ECU
does not receive any signal from the column switch signal". See: Body and Frame/Body Control Systems/Body Control Module/Testing and
Inspection/Scan Tool Testing and Procedures/Input Signal Procedures/Inspection Procedure 12
STEP 4. Retest the system
Check that the taillight illuminates normally.
Q: Does the taillight work normally?
YES : The trouble can be an intermittent malfunction.
NO : Replace the ETACS-ECU.
Inspection Procedure 2
