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Home >> Mitsubishi >> 2019 >> Outlander ES, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Communication Devices >> Controller Area Network (Can) Diagnosis >> Can-Related Connector Position >> Can Bus Diagnostics >> Diagnostic Item 24: Diagnose when the scan tool cannot receive the data sent by transaxle control module (TCM) >> Diagnosis
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Diagnostic Item 24: Diagnose when the scan tool cannot receive the data sent by transaxle control module (TCM): Diagnosis

  1. STEP 1. Connector check: joint connector (CAN1) and TCM connector 
    CAUTION: The strand end of the twist wire should be within 10 cm from the connector. For details refer to SERVICE PRECAUTIONS .

    When checking the joint connector, ensure that its wiring harness side and its short pins are not damaged.

    Q: Is the check result normal? 

    YES  : Go to Step  2.

    NO  : Repair the defective connector. Replace the joint connector as necessary.

  2. STEP 2. Resistance measurement at joint connector (CAN1) and TCM connector. 
    CAUTION: A digital multimeter should be used. For details refer to SERVICE PRECAUTIONS .
    CAUTION: The test wiring harness should be used. For details refer to SERVICE PRECAUTIONS .
    1. Disconnect joint connector (CAN1) and the TCM connector, and measure at the wiring harness side.
    2. Turn the ignition switch to the LOCK (OFF) position.
      CAUTION: When measuring the resistance, disconnect the negative battery terminal. For details refer to SERVICE PRECAUTIONS .
    3. Ensure that the negative battery terminal is disconnected.
    4. Continuity between joint connector (CAN1) terminal No. 4 and TCM connector terminal No. 9 <CVT>

      OK: Continuity (2 ohms or less) 

    5. Continuity between joint connector (CAN1) terminal No. 13 and TCM connector terminal No. 10 <CVT>

      OK: Continuity (2 ohms or less) 

    6. Continuity between joint connector (CAN1) terminal No. 4 and TCM connector terminal No. 10 <A/T>

      OK: Continuity (2 ohms or less) 

    7. Continuity between joint connector (CAN1) terminal No. 13 and TCM connector terminal No. 11 <A/T>

    OK: Continuity (2 ohms or less) 

    Q: Is the check result normal? 

    YES  : <All the resistances measure 2 ohms or less> Go to Step  3.

    NO  : <Either or all of the resistances measure more than 2 ohms> Repair the wiring harness between joint connector (CAN1) and the TCM connector.

  3. STEP 3. Resistance measurement at TCM connector. 
    CAUTION: A digital multimeter should be used. For details refer to SERVICE PRECAUTIONS .
    1. Remove the TCM, and measure at the equipment side.
    2. Resistance between TCM connector terminal Nos. 11 and 10 <A/T>

      OK: 1 k  Ω or more 

    3. Resistance between TCM connector terminal Nos. 9 and 10 <CVT>

    OK: 1 k  Ω or more 

    Q: Is the check result normal? 

    YES  : Power supply to the TCM may be suspected. Diagnose the A/T system <A/T> or CVT system <CVT>. Refer to TROUBLESHOOTING <A/T> or TROUBLESHOOTING <CVT>.

    NO  : Replace the TCM.

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