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SN-16 < ECU DIAGNOSIS INFORMATION > SONAR CONTROL UNIT FOR REAR SONAR SYSTEM DTC Index INFOID:0000000006159219 15 (Y) Rear sonar sensor ON — 0 16 (LG/B) Rear sonar sensor ON Ignition switch ON Battery voltage Terminal (wire color) Item Condition Reference value (V) (Approx.) Ignition switch Operation Fault Code Malfunction Service Procedure 11 Rear sonar sensor LH outer 1. Check harness for open or short. 2. Replace sonar sensor. Refer to . 12 Rear sonar sensor LH inner 13 Rear sonar sensor RH inner 14 Rear sonar sensor RH outer 21 Rear sonar buzzer 1. Refer to 2. Check harness for open or short. 3. Refer to . 22 Sonar system OFF indicator 1. Refer to 2. Check harness for open or short. 3. Refer to symptom table. 23 Sonar system OFF switch 24 Sonar control unit |