Lancer Sportback L4-2.4L (4B12) (2010)
![background image](/mitsubishi/lancer_sportback/l4-2.4l_(4b12)/Page-572006.png)
failure.
TROUBLESHOOTING HINT
Malfunction of the ETACS-ECU
DIAGNOSIS
Required Special Tools:
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MB991958: Scan Tool (M.U.T.-III Sub Assembly)
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MB991824: Vehicle Communication Interface (V.C.I.)
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MB991827: M.U.T.-III USB Cable
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MB991910: M.U.T.-III Main Harness A
Recheck for other system diagnostic trouble code.
CAUTION: To prevent damage to scan tool MB991958, always turn the ignition switch to the "LOCK" (OFF) position before connecting or
disconnecting scan tool MB991958.
Check whether ETACS-ECU-related DTC is set.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
3. Check if the DTC is set.
4. Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the DTC set?
The DTC other than the U code is set. : Troubleshoot the ETACS-ECU. Refer to, ETACS-ECU. See: Testing and Inspection/Diagnostic
Trouble Code Descriptions/ETACS
Only U-code DTC is set. : Check the power supply circuit of the ETACS-ECU. Refer to, ETACS-ECU. See: Body Control Module/Testing and
Inspection/Symptom Related Diagnostic Procedures/Trouble Symptom Chart
The DTC is not set. : Check the power supply circuit of the ETACS-ECU. Refer to, ETACS-ECU. See: Body Control Module/Testing and
Inspection/Symptom Related Diagnostic Procedures/Trouble Symptom Chart
Diagnostic Item 3
DIAGNOSTIC ITEM 3: Abnormal short between the CAN-C bus lines.
CAUTION: When servicing a CAN bus line, ground yourself by touching a metal object such as an unpainted water pipe. If you fail to do so, a
component connected to the CAN bus line may be damaged.