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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 line (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 2.
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Q.
Is diagnosis code No. C1392 set?
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This diagnosis is complete.
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Perform calibration of G sensor (Refer to ).
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Q.
Is the check result normal?
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Calibrate the G sensor (Refer to ). Then go to Step 4.
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(1)Erase the set diagnosis code.
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(2)Ignition switch: "LOCK" (OFF) to "ON"
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Q.
Is diagnosis code No. C1392 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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