Basic Inspection

Before performing diagnosis, check the following items that might provoke the problems related to BSD/RCTA.

1. Check the battery. Ref. to STARTING/CHARGING SYSTEMS(H4DO)>Battery . Ref. to STARTING/CHARGING SYSTEMS(H4DOTC)>General Description .
2. Check the relay and fuse condition. Ref. to Blind Spot Detection/Rear Cross Traffic Alert>Relay and Fuse .
3. Check the connecting condition of harness and connector.