Lancer Sportback L4-2.4L (4B12) (2010)
4. Diagnose CAN bus lines, and check if the scan tool MB991958 screen is as shown in the figure.
OK: The display of the scan tool MB991958 is as shown in the figure.
Q: Does scan tool MB991958 screen correspond to the illustration?
YES : Repair the wiring harness between transaxle assembly (TC-SST-ECU) connector B-120 and joint connector (CAN4) A-55.
NO : Check transaxle assembly (TC-SST-ECU) connector B-120, and repair if necessary. If the transaxle assembly (TC-SST-ECU) connector is
in good condition, replace the transaxle assembly (TC-SST-ECU).
Diagnostic Item 6
DIAGNOSTIC ITEM 6: Diagnose when the scan tool cannot receive the data sent by steering wheel sensor.
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.