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Diagnosis Procedure
1.CHECK DTC PRIORITY
If DTC “U2440-57” is displayed with DTC “U1327-52” or “U1327-54”, first perform the trouble diagnosis for DTC “U1327-52” or “U1327-54”.
Is DTC “U1327-52” or “U1327-54” detected?
Perform diagnosis of applicable. Refer to the following.
 
2.CHECK MAC DIAGNOSIS
With M.U.T.-III SE
Perform “MAC Diagnosis” mode of “ACC/ADAS 2” using M.U.T.-III SE.
Is DTC “U2440-57” detected with DTC “U214F-57”, “U2175-57” (with multi-around monitor control unit), “U2176-57”, “U244F-57”, “U2465-57” (with sonar system) and “U2476-57” at the same time?
(all DTC codes are detected at the same time)Replace the ADAS control unit 2. Refer to Removal and Installation.
(all DTC codes are not detected at the same time).
 
3.CHECK NETWORK-DTC
With M.U.T.-III SE
Perform "CAN Diag".
Is the inspection result normal?
Contact Techline and report the vehicle condition.
Repair or replace root cause.