Lancer Sportback L4-2.4L (4B12) (2010)
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STEP 4. Using scan tool MB991958, read the TC-SST 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 shift lever system DTC (Refer to Diagnosis [TC-SST] - Diagnostic Function.)
Q: Is any DTC set?
YES : Repair the TC-SST system (Refer to Diagnosis [TC-SST] - Diagnostic Trouble Code Chart.) Then go to Step 7.
NO : Go to Step 5.
STEP 5. Using scan tool MB991958, check data list item 88: Neutral 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 88: Neutral switch.
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When shift lever is at the "N" or "P" position, the display on scan tool MB991958 should be "ON."
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When shift lever is other than "N" or "P" position, 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 shift lever is moved to "N" position, 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 shift lever is moved to "N" position, is the cruise control cancelled?
YES : The procedure is complete.
NO : Return to Step 1.
Inspection Procedure 5
Inspection Procedure 5: When The "CANCEL" Switch Is Pressed, Cruise Control Is Not Cancelled.
COMMENT
The cause is probably an open-circuit in the output circuit inside the "CANCEL" switch.
TROUBLESHOOTING HINTS (THE MOST LIKELY CAUSES FOR THIS CASE:)
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Malfunction of the cruise control switch.
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Malfunction of the ECM.
DIAGNOSTIC PROCEDURE
STEP 1. Using scan tool MB991958, check the data list item 75: Cancel switch.