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Home >> Mitsubishi >> 2012 >> Lancer Evolution MR >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Keyless Operation System (Kos) - Lancer) >> Diagnosis >> Symptom Procedures >> Inspection Procedure 17: Keyless Entry Hazard Light Answerback Function, The Dome Light Answerback Function Or The Horn Answerback Function Does Not Work Normally >> Diagnosis

Inspection Procedure 17: Keyless Entry Hazard Light Answerback Function, The Dome Light Answerback Function Or The Horn Answerback Function Does Not Work Normally: Diagnosis

WARNING: This page is about a different variant/trim than selected.
  1. STEP 1. Verify the operation hazard warning light 

    Check that the hazard warning light illuminate normally.

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Refer to INSPECTION PROCEDURE 1: "HAZARD WARNING LIGHT DOES NOT ILLUMINATE ."
  2. STEP 2. Verify the operation of the dome light. 

    Check that the dome lights illuminate normally.

    Q: Is the check result normal? 

    1. YES:  Go to Step 3.
    2. NO:  Refer to INSPECTION PROCEDURE 1 "THE FRONT DOME LIGHT DOES NOT ILLUMINATE NORMALLY ." or INSPECTION PROCEDURE 2 "THE REAR DOME LIGHT DOES NOT ILLUMINATE NORMALLY ."
  3. STEP 3. Verify the horn. 

    Check that the horn normally.

    Q: Is the check result normal? 

    1. YES:  Go to Step 4.
    2. NO:  Replace the horn (Refer to REMOVAL AND INSTALLATION ).
  4. STEP 4. Check the operation of the keyless entry system. 

    Operate the keyless operation key and check that all doors lock and unlock.

    Q: Is the check result normal? 

    1. YES:  Go to Step 5.
    2. NO:  Refer to INSPECTION PROCEDURE 15: "KEYLESS ENTRY SYSTEM DOES NOT WORK  ."
  5. STEP 5. Check the customize function. 

    Check that any one of the followings other than "Lock: 0, Unlock: 0" is set for "Hazard answerback" with a customization function.

    • Lock: 1, Unlock: 2
    • Lock: 1, Unlock: 0
    • Lock: 0, Unlock: 2
    • Lock: 2, Unlock: 1
    • Lock: 2, Unlock: 0
    • Lock: 0, Unlock: 1

    Q: Is the check result normal? 

    1. YES:  Go to Step 6.
    2. NO:  Set "Hazard answerback" to any one other than "Lock: 0, Unlock: 0" with a customization function (Refer to ID CODES REGISTRATION PROCEDURES ).
  6. STEP 6. Check the customize function. 

    Check that any one of the followings other than "Not sound horn" is set for "Horn chirp by keyless" with a customization function.

    • Lock any time
    • W lock any time

    Q: Is the check result normal? 

    1. YES:  Go to Step 7.
    2. NO:  Set "Horn chirp by keyless" to any one other than "Not sound horn" with a customization function (Refer to ID CODES REGISTRATION PROCEDURES ).
  7. STEP 7. Using scan tool MB991958, read the diagnostic trouble code. 
    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. Refer to "HOW TO CONNECT SCAN TOOL (M.U.T.-III)  ."
    2. Turn the ignition switch to the "ON" position.
    3. Check whether the KOS-ECU related DTC is set.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the DTC set? 

    1. YES:  Diagnose the KOS-ECU. Refer to DIAGNOSTIC TROUBLE CODE CHART  .
    2. NO:  Go to Step 8.
      Fig 1: Connecting Scan Tool To Data Link Connector
      G08294715Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  8. STEP 8. Check of the troubles 

    Check if the keyless entry answerback function works normally.

    Q: Is the check result normal? 

    1. YES:  The diagnosis is complete.
    2. NO:  Replace ETACS-ECU.
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