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Home >> Mitsubishi >> 2014 >> Lancer ES Sportback >> Repair and Diagnosis >> External Pages >> Different car >> Section 63 (Electronically Controlled AWD - With Diagnostics) >> Troubleshooting >> Diagnostic Trouble Code Procedures >> Code No. U1427: Implausible Wheel Speed Data >> Diagnosis

Code No. U1427: Implausible Wheel Speed Data: Diagnosis

WARNING: This page is about a different car, the 2014 Mitsubishi Outlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. STEP 1. Scan tool (M.U.T.-III) CAN bus diagnostics. 

    Use scan tool (M.U.T.-III) to perform the CAN bus diagnosis.

    Q: Is the check result normal? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the CAN bus lines (Refer to DIAGNOSIS ).
  2. STEP 2. Scan tool (M.U.T.-III) other system DTC. 

    Check the ASC DTC (Refer to TROUBLESHOOTING ).

    Q: Is the DTC stored? 

    1. YES:  Perform the relevant troubleshooting.
    2. NO:  Go to Step 3.
  3. STEP 3. Scan tool (M.U.T.-III) data list. 

    Check the data list of the relevant wheel speed sensor (Refer to DATA LIST REFERENCE TABLE  ).

    • Item No.18: FL Wheel speed sensor
    • Item No.19: FR Wheel speed sensor
    • Item No.20: RL Wheel speed sensor
    • Item No.21: RR Wheel speed sensor

    Q: Is the check result normal? 

    1. YES:  Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
    2. NO:  Go to Step 4.
  4. STEP 4. Check whether the DTC is stored again. 

    Q: Is DTC No. U1427 stored? 

    1. YES:  Replace the AWD-ECU (Refer to AWD-ECU  ). Then go to Step 5.
    2. NO:  Intermittent malfunction (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
  5. STEP 5. Check whether the DTC is stored again. 

    Q: Is DTC No. U1427 stored? 

    1. YES:  Return to  Step 1.
    2. NO:  This diagnosis is complete.
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