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DIAGNOSTIC ITEM 20: Diagnose When The Scan Tool Cannot Receive The Data Sent By Radio And CD Player Or CD Changer: Diagnosis

Required Special Tools: 

  1. STEP 1. Check joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 for loose, corroded or damaged terminals, or terminals pushed back in the connector. 
    CAUTION:

    The strand end of the twisted wire should be within 10 cm (4 inches) from the connector. For details refer to SERVICE PRECAUTIONS  .

    Q: Are joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 in good condition? 

    1. YES:  Go to Step 2.
    2. NO:  Repair the damaged parts.
  2. STEP 2. Check the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 for open circuit. 
    CAUTION:

    Strictly observe the specified wiring harness repair procedure. For details refer to SERVICE PRECAUTIONS  .

    1. Disconnect joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107, and check the wiring harness.
    2. Check the wiring harness between joint connector (CAN1) C-105 (terminal 8) and radio and CD player or CD changer connector C-107 (terminal 23)

      OK: Continuity exists (2 Ω or less) 

      Fig 1: Measuring Resistance Between Joint Connector C-105 Terminal 8 & Radio/CD Player Terminal 23
      G00527793Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
    3. Check the wiring harness between joint connector (CAN1) C-105 (terminal 19) and radio and CD player or CD changer connector C-107 (terminal 33)

      OK: Continuity exists (2 Ω or less) 

      Fig 2: Measuring Resistance Between Joint Connector C-105 Terminal 19 & Radio Terminal 33
      G00527794Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

    Q: Is the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107 in good condition? 

    1. YES:  Check the power supply circuit of the radio and CD player or CD changer. Refer to TROUBLE SYMPTOM CHART .
    2. NO:  Repair the wiring harness between joint connector (CAN1) C-105 and radio and CD player or CD changer connector C-107.
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