Diagnosis Procedure
1.
CHECK DTC PRIORITY
If DTC U1327-52 is displayed with DTC U1327-54, first perform the trouble diagnosis for DTC U1327-54.
Is DTC U1327-54 detected?
Refer to
DTC Description
.
.
2.
PERFORM MAC KEY WRITING
With M.U.T.-III SE
Perform “MAC key writing”. Refer to
Description
.
Perform “MAC Diagnosis” of “SONAR” using M.U.T.-III SE.
Is DTC U1327-52 detected as the current malfunction?
.
INSPECTION END.
3.
REPLACE SONAR CONTROL UNIT
Replace sonar control unit. Refer to
Removal and Installation
.
:
INSPECTION END
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Refer to DTC Description
.
.
With M.U.T.-III SE..INSPECTION END..