Lancer Sportback L4-2.4L (4B12) (2010)
NO : Go to Step 2.
STEP 2. Check ECM connector B-109 and clutch switch connector C-42, for loose, corroded or damaged terminals, or terminals pushed back
in the connector.
Q: Is the connector and terminal in good condition?
YES : Go to Step 3.
NO : Repair or replace the damaged connector. Then go to Step 7.
STEP 3. Check the harness wire between ECM connector B-109 terminal number 85 and clutch switch connector C-42 terminal number 2, and
between clutch switch connector C-42 terminal number 1 and body ground, for damage.
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Check harness wire for open/short circuit and damage.
Q: Is the harness wires in good condition?
YES : Go to Step 4.
NO : Repair or replace the damaged harness wire. Then go to Step 7.
STEP 4. Check the clutch switch.
Refer to On-vehicle Service - Clutch Switch Check. See: Sensors and Switches/Sensors and Switches - Starting and Charging/Clutch Switch/Testing and
Inspection/Clutch Switch Check
Q: Is the clutch switch operating properly?
YES : Go to Step 5.
NO : Replace the clutch switch. Then go to Step 7.
STEP 5. Using scan tool MB991958, check data list item 78: Clutch switch.
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 data reading mode for cruise control system. See: Reading and Clearing Diagnostic Trouble Codes/How to Connect
the Scan Tool (M.U.T.-Iii.)
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Item 78: Clutch switch.
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When the clutch pedal is depressed, the display on scan tool MB991958 should be "ON."
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When the clutch pedal is released, the display on scan tool MB991958 should be "OFF."
Q: Is the switch operating properly?
YES : Go to Step 6.
NO : Replace the ECM. When the ECM is replaced, register the encrypted code (Refer to Diagnosis - ID Code Registration Judgment Table.)
See: Body and Frame/Body Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/ID Codes Registration Judgment Table
Then go to Step 7.
STEP 6. Check the symptoms.
Q: When the clutch pedal is depressed, is the cruise control cancelled?
YES : It can be assumed that this malfunction is intermittent.
NO : Replace the ECM. When the ECM is replaced, register the encrypted code (Refer to Diagnosis - ID Code Registration Judgment Table.)
See: Body and Frame/Body Control Systems/Testing and Inspection/Scan Tool Testing and Procedures/ID Codes Registration Judgment Table
Then go to Step 7.
STEP 7. Check the symptoms.
Q: When the clutch pedal is depressed, is the cruise control cancelled?