Lancer Sportback L4-2.4L (4B12) (2010)
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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 "ACC" position.
3. Turn "ON" the hazard light switch.
Q: Does scan tool MB991958 display the items "Hazard switch" as normal condition?
YES : (Normal condition is displayed for item) Go to Step 3.
NO : (Normal condition is not displayed for item No. 265.) Troubleshoot the ETACS-ECU. Refer to ETACS, Diagnosis - Inspection Procedure
10 "ETACS-ECU does not receive any signal from the hazard warning light switch". See: Body and Frame/Body Control Systems/Body Control
Module/Testing and Inspection/Scan Tool Testing and Procedures/Input Signal Procedures/Inspection Procedure 10
STEP 3. Retest the system
Check that the hazard warning light illuminate normally.
Q: Does the taillight work normally?
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.
