DIAGNOSTIC ITEM 6: Diagnose When The Scan Tool Cannot Receive The Data Sent By AWC-ECU: Diagnosis

Required Special Tools:

MB991223: Harness Set
MB992006: Extra Fine Probe

STEP 1. Check joint connector (CAN2) C-104 and AWC-ECU connector C-46 and intermediate connector C-23 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 (CAN2) C-104 and AWC-ECU connector C-46 and intermediate connector C-23 in good condition?
1. YES: Go to Step 2.
2. NO: Repair the damaged parts.
STEP 2. Check the wiring harness between joint connector (CAN2) C-104 and AWC-ECU connector C-46 for open circuit.
CAUTION: Strictly observe the specified wiring harness repair procedure. For details refer to SERVICE PRECAUTIONS .
1. Disconnect joint connector (CAN2) C-104 and AWC-ECU connector C-46, and check the wiring harness.
2. Check the wiring harness between joint connector (CAN2) C-104 (terminal 8) and AWC-ECU connector C-46 (terminal 4)
  OK: Continuity exists (2 Ω or less)
  
  Fig 1: Measuring Resistance Between Joint Connector C-104 Terminal 8 & AWC-ECU Connector C-46 Terminal 4
  Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Check the wiring harness between joint connector (CAN2) C-104 (terminal 19) and AWC-ECU connector C-46 (terminal 5)
  OK: Continuity exists (2 Ω or less)
  
  Q: Is the wiring harness between joint connector (CAN2) C-104 and AWC-ECU connector C-46 in good condition?
  1. YES: Check the power supply circuit of the AWC-ECU. Refer to TROUBLESHOOTING <S-AWC>.
  2. NO: Repair the wiring harness between joint connector (CAN2) C-104 and AWC-ECU connector C-46.
    
    Fig 2: Measuring Resistance Between Joint Connector C-104 Terminal 19 & AWC-ECU Connector C-46 Terminal 5
    Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.