Basic Inspection

Before performing the diagnosis, check the following items which may affect the problems relating to the telematics system.

1. Check the battery. Refer to STARTING/CHARGING SYSTEMS (H4DOTC)>Battery>INSPECTION . Refer to STARTING/CHARGING SYSTEMS (H4DO)>Battery>INSPECTION .
2. Check the relay and fuse condition. Refer to ENTERTAINMENT & MONITORING>RELAY AND FUSE .
3. Check harness and connector. Also check grounding.