Lancer L4-2.4L (4B12) (2009)
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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) is in good
condition, replace the transaxle assembly (TC-SST-ECU).
STEP 20. Using scan tool MB991958, diagnose the CAN bus line.
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.
1. Connect scan tool MB991958 to the data link connector.
2. Turn the ignition switch to the "ON" position.
