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DTC U15A2 Vehicle speed information lost: 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. Using scan tool (M.U.T.-III), diagnose the CAN bus line. 
    CAUTION: To prevent damage to scan tool (M.U.T.-III), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-III).
    1. Connect scan tool (M.U.T.-III). Refer to "HOW TO CONNECT THE SCAN TOOL (M.U.T.-III)  ."
    2. Turn the ignition switch to the "ON" position.
    3. Diagnose the CAN bus line.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the CAN bus line found to be normal? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the CAN bus line. (Refer to DIAGNOSIS ).
  2. STEP 2. Using scan tool (M.U.T.-III), check for any ASC diagnostic trouble code. 

    Check if DTC is stored to the ASC-ECU.

    Q: Is the DTC stored? 

    1. YES:  Troubleshoot the ASC. (Refer to DIAGNOSTIC TROUBLE CODE TABLE .)
    2. NO:  Go to Step 3.
  3. STEP 3. Using scan tool (M.U.T.-III), read the KOS-ECU diagnostic trouble code. 

    Check if the DTC U1102 stored to the KO-ECU.

    Q: Is the DTC stored? 

    1. YES:  Go to Step 4.
    2. NO:  Go to  Step 5.
  4. STEP 4. Recheck for diagnostic trouble code. 

    Check again if the DTC is stored to the occupant classification-ECU.

    1. Erase the DTC.
    2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
    3. Check if DTC is stored.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the DTC stored? 

    1. YES:  Replace the ASC-ECU.
    2. NO:  The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the ASC-ECU and the occupant classification-ECU. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION )
  5. STEP 5. Recheck for diagnostic trouble code. 

    Check again if the DTC is stored to the occupant classification-ECU.

    1. Erase the DTC.
    2. Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
    3. Check if DTC is stored.
    4. Turn the ignition switch to the "LOCK" (OFF) position.

    Q: Is the DTC stored? 

    1. YES:  Replace the front seat cushion cover and pad assembly (Refer to FRONT SEAT ASSEMBLY ).
    2. NO:  The trouble can be an intermittent malfunction such as a poor connection or open circuit in the CAN bus lines between the ASC-ECU and the occupant classification-ECU. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION )