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Using M.U.T.-III, perform CAN bus diagnosis (Refer to GROUP 54C - Explanation
About The M.U.T.-III Can Bus Diagnostics).
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Q.
Is the check result satisfactory?
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Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting, Can Bus
Diagnostic Table ). Then go to Step 2.
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Q.
Is diagnosis code set?
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Repair the adaptive cruise control system (ACC) (Refer to ).
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- Using M.U.T.-III, perform common rail fuel injection system diagnosis code
(Refer to GROUP 13D - Troubleshooting, Diagnosis Function ).
- Using M.U.T.-III, perform cruise control system diagnosis code (Refer to ).
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Q.
Is any diagnosis code set?
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YES <Diesel fuel system> : Repair the common rail fuel injection system (Refer to GROUP 13D - Troubleshooting,
Diagnosis Function ).
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YES <Cruise control system> : Repair the cruise control system (Refer to ).
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Using M.U.T.-III, perform ASC system diagnosis code (Refer to GROUP 35C - Troubleshooting,
Diagnosis Function ).
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Q.
Is the diagnosis code set?
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Repair the ASC system (Refer to GROUP 35C - Troubleshooting, Inspection
Chart for Diagnosis Code ).
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The system should be turned on when the cruise control switch is operated.
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Q.
Is the system turned on by operating the cruise control switch?
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Refer to "When the cruise control switch is operated, the system is not turned
on."(Refer to )
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Q.
Is the check result normal?
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Replace the cruise control switch.
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(1)Drive the vehicle for approx. three minutes.
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Q.
Is the cruise control cancelled?
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It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How
to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction).
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