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DTC Description
 
 
DTC DETECTION LOGIC
DTCM.U.T.-III SE screen items (Trouble diagnosis content)DTC detection condition
B2740-83TCU
(TCU)
Diagnosis conditionWhen ignition switch is ON
Signal (terminal)—
ThresholdCommunication error between sonar control unit and TCU
Diagnosis delay time2 seconds or more
 
 
POSSIBLE CAUSE
  • Sonar control unit
  • TCU
 
 
FAIL-SAFE
—
 
 
CONFIRMATION PROCEDURE
1.PERFORM DTC CONFIRMATION PROCEDURE
With M.U.T.-III SE
  1. Turn ignition switch ON.
  2. Turn ignition switch OFF and wait at least 30 seconds.
  3. Turn ignition switch ON and wait at least 2 seconds or more.
  4. Select “Self Diagnostic Result” mode of “SONAR” using M.U.T.-III SE.
  5. Check the DTC.
Is DTC “B2740-83” detected?
Refer to Diagnosis Procedure.
-1To check malfunction symptom before repair: Refer to Intermittent IncidentIntermittent Incident.
-2Confirmation after repair: INSPECTION END