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SN-76 < DTC/CIRCUIT DIAGNOSIS > [WITHOUT PARK ASSIST] B2729-12 CORNER SENSOR [FL] B2729-12 CORNER SENSOR [FL] DTC Description INFOID:0000000010735586 DTC DETECTION LOGIC POSSIBLE CAUSE • Harness or connectors (Corner sensor front LH circuit) FAIL-SAFE • Obstacle detection function is stopped DTC CONFIRMATION PROCEDURE 1. PERFORM DTC CONFIRMATION PROCEDURE With CONSULT 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 30 seconds or more. 4. Select “Self Diagnostic Result” mode of “SONAR” using CONSULT. 5. Check DTC. Is DTC B2729-12 detected? YES >> Proceed to NO-1 >> To check malfunction symptom before repair: Refer to GI-44, "Intermittent Incident" . NO-2 >> Confirmation after repair: INSPECTION END Diagnosis Procedure INFOID:0000000010735587 1. CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR SHORT (1) 1. Turn ignition switch OFF. 2. Disconnect sonar control unit harness connector and corner sensor front LH harness connector. 3. Turn ignition switch ON. 4. Check the voltage between sonar control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace malfunctioning parts. 2. CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR SHORT (2) Check the continuity between corner sensor front LH harness connector ground. DTC Trouble diagnosis (Trouble diagnosis contents) Detecting condition B2729-12 CORNER SENSOR [FL] SHORT-BAT Short circuit to power supply is detected in harness between sonar Terminals Voltage (Approx.) (+) ( − ) Sonar control unit Connector Terminal B101 3 Ground 0 V |