Lancer Sportback L4-2.4L (4B12) (2010)
/Page-1424028.png)
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. 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. Diagnose the CAN bus line. See: Scan Tool Testing and Procedures/How to Diagnose the Can Bus Line
Q: Is the check result satisfactory?
YES : Go to Step 2.
NO : Repair the CAN bus lines (Refer to Diagnosis - Can Bus Diagnostic Chart.) See: Powertrain Management/Computers and Control
Systems/Information Bus/Testing and Inspection/Scan Tool Testing and Procedures/CAN Bus Diagnostics Table Then go to Step 6.
STEP 2. Using scan tool MB991958, check for MFI system DTC.
1. Connect scan tool MB991958 to the data link connector. 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 for MFI system DTC (Refer to MFI Diagnosis - Diagnostic Function) [2.0L ENGINE] See: Powertrain Management/Computers and
Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Function or (Refer to MFI Diagnosis - Diagnostic
Function) [2.4L ENGINE.] See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Initial Inspection and
Diagnostic Overview/Diagnostic Function
Q: Is DTC U0141 set?
YES : Repair the MFI system (Refer to MFI Diagnosis, Diagnostic Trouble Code Procedures - DTC U0141: ETACS-ECU CAN Communication
Time Out) [2.0L ENGINE] See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Tests
and Associated Procedures/U Code Charts/U0141 or (Refer to MFI Diagnosis, Diagnostic Trouble Code Procedures - DTC U0141: ETACS-ECU
CAN Communication Time Out) [2.4L ENGINE.] See: Powertrain Management/Computers and Control Systems/Testing and
Inspection/Diagnostic Trouble Code Tests and Associated Procedures/U Code Charts/U0141 Then go to Step 6.
NO : Go to Step 3.
STEP 3. Using scan tool MB991958, check for ETACS system DTC.
1. Connect scan tool MB991958 to the data link connector. 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 for ETACS system DTC (Refer to ETACS, Troubleshooting - Diagnostic Function.) See: Body and Frame/Body Control Systems/Body
Control Module/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes
Q: Is DTC U0155 set?
YES : Repair the ETACS system (Refer to ETACS, Troubleshooting, Diagnostic Trouble Code Procedures - DTC U0155: Combination
Meter-ECU CAN Communication Time Out.) See: Powertrain Management/Computers and Control Systems/Testing and Inspection/Diagnostic
Trouble Code Tests and Associated Procedures/U Code Charts/U0155/ETACS Then go to Step 6.
NO : Go to Step 4.
STEP 4. Using scan tool MB991958, check the combination meter system actuator test item 7: Cruise indicator 1.
1. Connect scan tool MB991958 to the data link connector. 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. Set scan tool MB991958 to check the actuator test for combination meter system item 7: indicator 1 (Refer to Combination Meter,
Troubleshooting - Actuator Test Table.) See: Instrument Panel, Gauges and Warning Indicators/Instrument Cluster / Carrier/Testing and
Inspection/Scan Tool Testing and Procedures/Actuator Test Table
Q: Is the check result satisfactory?
YES : Go to Step 5.
NO : Repair the combination meter system (Refer to Combination Meter, Troubleshooting, Symptom Procedures - Inspection Procedure 5: The
