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Power Supply and Ground Circuit Inspection for Bluetooth Control Unit


1. CHECK FUSES

Make sure the following fuses for the Bluetooth control unit are not blown.





OK or NG
OK- GO TO 2.
NG- If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Description and Operation.

2. CHECK POWER SUPPLY CIRCUIT

1.Disconnect Bluetooth control unit connector B121.





2.Check voltage between connector terminals and ground as follows.





OK or NG
OK- GO TO 3.
NG- Check harness for open between Bluetooth control unit and fuse.

3. CHECK GROUND CIRCUITS

1.Turn ignition switch OFF.





2.Check continuity between the following Bluetooth control unit terminals and ground.





OK or NG
OK- Inspection End.
NG- Repair or replace harness.