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Use the M.U.T.-III to diagnose the CAN bus lines.
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Q.
Is the check result normal?
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Repair the CAN bus lines (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 2.
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Q.
Is diagnosis code No. U1108 set?
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This diagnosis is complete.
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Check whether a diagnosis code is set in the combination meter (Refer to GROUP 54A - Combination Meter, Troubleshooting, Diagnosis Code Chart ).
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Q.
Is the diagnosis code set?
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Follow the relevant diagnosis code procedure. Then go to Step 5.
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Check whether a combination meter "time-out" related diagnosis code is set in other ECUs.
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Q.
Is the diagnosis code set?
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Replace the combination meter (Refer to GROUP 54A - Combination Meter ). Then go to Step 5.
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Check again if the diagnosis code is set.
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(1)Erase the set diagnosis code.
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(2)Ignition switch: "LOCK" (OFF)
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Q.
Is diagnosis code No. U1108 set?
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Replace the hydraulic unit assembly (integrated with ASTC-ECU) (Refer to ).
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The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
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