Lancer L4-2.4L (4B12) (2009)
CAN-B Communication Circuit (Part 2)
FUNCTION
If the scan tool MB991958 cannot communicate with the radio and CD player, this diagnosis result will be set.
TROUBLE JUDGEMENT CONDITIONS
If a communication flag is not set for the radio and CD player, the ETACS-ECU determines that there is a failure.
TROUBLESHOOTING HINTS
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Malfunction of the connector [joint connector (CAN1), radio and CD player connector improperly connected]
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Malfunction of the wiring harness [open circuit between the radio and CD player connector and the joint connector (CAN1), power supply circuit
to the radio and CD player]
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Malfunction of the radio and CD player
DIAGNOSIS
Required Special Tools:
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MB991223: Harness Set
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MB992006: Extra Fine Probe
STEP 1. Check joint connector (CAN1) C-06 and radio and CD player connector C-104 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.
Q: Are joint connector (CAN1) C-06 and radio and CD player connector C-104 in good condition?
YES : Go to Step 2.
NO : Repair the damaged parts.
STEP 2. Check the wiring harness between joint connector (CAN1) C-06 and radio and CD player connector C-104 for open circuit.
CAUTION: Strictly observe the specified wiring harness repair procedure.
1. Disconnect joint connector (CAN1) C-06 and radio and CD player connector C-104, and check the wiring harness.