Lancer Sportback L4-2.4L (4B12) (2010)
7. Start the M.U.T.-III system on the personal computer. 8. Turn the ignition switch to the "ON" position.
9. Check for MFI system DTC (Refer to MFI Diagnosis - Diagnostic Function) [2.0L ENGINE] See: 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: Computers and Control Systems/Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Function
Q: Is any DTC set?
YES : Diagnose the MFI system (Refer to Diagnosis - Diagnostic Trouble Code Chart) [2.0L ENGINE] See: Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions or (Refer to Diagnosis - Diagnostic Trouble Code Chart) [2.4L ENGINE.]
See: Computers and Control Systems/Testing and Inspection/Diagnostic Trouble Code Descriptions Then go to Step 3.
NO : Go to Step 2.
STEP 2. Retest the system.
Q: Does the throttle valve work with the accelerator pedal operation?
YES : It can be assumed that this malfunction is intermittent.
NO : Return to Step 1.
STEP 3. Retest the system.
Q: Does the throttle valve work with the accelerator pedal operation?
YES : The procedure is complete.
NO : Return to Step 1.
Inspection Procedure 2: Accelerator Pedal Operation Not Smooth (Over Acceleration.)
COMMENT
The accelerator pedal, its installation condition or the accelerator pedal position sensor is suspected.
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CASE:)
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Malfunction of the accelerator pedal.
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Incorrectly installed accelerator pedal.
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Malfunction of the accelerator pedal position sensor.
DIAGNOSIS
Required Special Tools:
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MB991958: Scan Tool (M.U.T.-III Sub Assembly)
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MB991824: 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
STEP 1. Check if the accelerator pedal is installed correctly.
Q: Is the accelerator pedal installed correctly?
YES : Go to Step 2.
NO : Remove and reinstall the accelerator pedal. Then go to Step 4.
STEP 2. Using scan tool MB991958, check the MFI system DTC.