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(1)Connect the M.U.T.-III to the diagnosis
connector.
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(2)Turn the ignition switch to the ON position.
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Q.
Is the communication with the other systems possible?
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Check for the contact with terminals.
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Q.
Is the check result normal?
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Repair
the defective connector.
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Measure the resistance between terminal No.4, 5
and earth at the wiring harness side.
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Q.
Is the check result normal?
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Check the earth line for open circuit.
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Q.
Is the check result normal?
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Repair
the wiring harness.
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Measure the voltage between diagnosis connector
D-127 terminal No.16 and earth.
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Q.
Is the check result normal?
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Check for the contact with terminals.
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Q.
Is the check result normal?
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Repair
the defective connector.
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Check the power supply line for short or open
circuit.
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Q.
Is the check result normal?
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Repair
the wiring harness.
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Using M.U.T.-III, perform CAN bus line
diagnosis.
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Q.
Is the check result normal?
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Intermittent malfunction (Refer to
GROUP 00 - How to Cope with Intermittent
Malfunction ).
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Repair
the CAN busline (Refer to GROUP 54D - Troubleshooting ).
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