| Scan tool (M.U.T.-IIISE) cannot communicate with ACC system. | Scan tool (M.U.T.-IIISE) cannot communicate with all systems. | - | Refer to GROUP 54C - Diagnosis  . |
| Scan tool (M.U.T.-IIISE) cannot communicate only with ACC/FCM-ECU. | 1 | |
| When the ACC ON/OFF switch is operated, the system is not turned on. | 2 | |
| Adaptive cruise control cannot be set (No response SET - switch and RES + switch is pressed). | 3 | |
| When the CANCEL switch is pressed, adaptive cruise control is not cancelled. | 4 | |
| When the ACC distance switch is operated, the distance from vehicle travelling in front cannot be changed. | 5 | |
| The adaptive cruise control is cancelled although the switch is not operated during the ACC operation. | 6 | |
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