With Surround Sound
B2725 REAR BUZZER
DTC Logic
DTC DETECTION LOGIC
Diagnosis Procedure
Regarding Wiring Diagram information, refer to "Wiring Diagram" With Surround Sound.
1. CHECK SONAR BUZZER SIGNAL CIRCUIT CONTINUITY
1.Turn ignition switch OFF.
2.Disconnect sonar control unit connector and sonar buzzer connector.
3.Check continuity between sonar control unit connector M70 and sonar buzzer connector B35.
4.Check continuity between sonar control unit connector M70 and ground.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace harness or connectors.
2. CHECK SONAR BUZZER SIGNAL CIRCUIT SHORT TO BATTERY
1.Turn ignition switch ON.
2.Check voltage between sonar control unit connector M70 and ground.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness or connectors.
3. CHECK SONAR BUZZER SIGNAL CIRCUIT SHORT TO BUZZER POWER
1.Turn ignition switch OFF.
2.Check continuity between sonar control unit connector M70 terminals.
Is the inspection result normal?
Revision: March 20122013 Infiniti JX
YES- Replace sonar buzzer. Refer to "Removal and Installation" With Surround Sound.
NO- Repair or replace harness or connectors.
Revision: March 20122013 Infiniti JX