Component Tests and General Diagnostics

Power Supply Circuit Check
If NG, check the following.
- 10 A fuse [No. 1, located in the fuse block (J/B)]
- 10 A fuse [No. 10, located in the fuse block (J/B)]
- 15 A fuse [No. 56, located in the fuse block (J/B)]
- Harness for open or short between fuse and display & NAV control unit

Ground Circuit Check:

Ground Circuit Check