NOTE:
1. HFL switch operation check:
Do all the HFL switch buttons respond?
YES
Go to step 2.
NO
Go to step 5.
2. Microphone operation check:
Is the microphone level OK?
YES
Go to step 3.
NO
Go to step 4.
3. Problem verification:
Does the audio system turn on by the voice command?
YES
Intermittent failure, the system is OK at this time.
NO
Replace the audio-navigation unit.
4. Audio panel check (substitution):
Does the symptom go away?
YES
Replace the original audio panel.
NO
Replace the audio-navigation unit.
5. Determine possible failure area (Audio remote switch circuit, others).
Go into the System Diagnostic Mode, and use the Hard Key to check the audio remote switch.
Does all the audio remote switch buttons respond?
YES
Go to step 6.
NO
Go to Audio remote switch does not work properly (audio unit buttons work) (With Navigation) or Audio remote switch does not work properly (audio unit buttons work) (Without Navigation, Color Audio Type (5-inch Screen) ) or Audio remote switch does not work properly (audio unit buttons work) (Without Navigation, Display Audio Type (7-inch Screen) ).
6. HFL switch check:
Is the HFL switch OK?
YES
Go to step 7.
NO
Replace the HFL switch.
7. Determine possible failure area (Audio-navigation unit, others):
NOTE: Eject the disc before disconnecting the audio-navigation unit to prevent damaging the CD player's load mechanism.
Audio-navigation unit connector A (24P)
Audio-navigation unit connector B (20P)
Is the resistance OK?
YES
Go to step 8.
NO
Go to step 9.
8. Audio-navigation unit check (HFT/NAVI REMOTE SW line):
HFL switch 7P connector
Is there continuity?
YES
Repair a short to body ground in the wire between the audio-navigation unit and the HFL switch. If the wire is OK, replace the cable reel.
NO
Replace the audio-navigation unit.
9. Open wire check (HFT/NAVI REMOTE SW line):
HFL switch 7P connector
Is there continuity?
YES
The HFT/NAVI REMOTE SW wire is OK. Go to step 10.
NO
Repair an open in the wire between the audio-navigation unit and the HFL switch. If the wire is OK, replace the cable reel.
10. Open wire check (AUDIO GND line).
Audio remote switch 12P connector
Is there continuity?
YES
Replace the audio remote switch.
NO
Repair an open in the wire between the audio remote switch and the HFL switch.
NAVIGATION SYSTEM SYMPTOM TROUBLESHOOTING INDEX
NOTE: Before troubleshooting, check any official Honda service website for more information about the navigation system.
CIRCUIT DIAGRAM
AUDIO AND VISUAL SYSTEM CIRCUIT DIAGRAM (WITH NAVIGATION)
Fig. 1: Audio and Visual System Circuit Diagram (With Navigation) (1 Of 5)
Fig. 2: Audio and Visual System Circuit Diagram (With Navigation) (2 Of 5)
Fig. 3: Audio and Visual System Circuit Diagram (With Navigation) (3 Of 5)
Fig. 4: Audio and Visual System Circuit Diagram (With Navigation) (4 Of 5)
Fig. 5: Audio and Visual System Circuit Diagram (With Navigation) (5 Of 5)
AUDIO AND VISUAL SYSTEM CIRCUIT DIAGRAM (WITHOUT NAVIGATION, COLOR AUDIO TYPE (5-INCH SCREEN): KA/KC)
Fig. 6: Audio and Visual System Circuit Diagram (Without Navigation, Color
Audio Type (5-inch Screen): KA/KC) (1 Of 3)
Fig. 7: Audio and Visual System Circuit Diagram (Without Navigation, Color
Audio Type (5-inch Screen): KA/KC) (2 Of 3)
Fig. 8: Audio and Visual System Circuit Diagram (Without Navigation, Color
Audio Type (5-inch Screen): KA/KC) (3 Of 3)
AUDIO AND VISUAL SYSTEM CIRCUIT DIAGRAM (WITHOUT NAVIGATION, DISPLAY AUDIO TYPE (7-INCH SCREEN): KA/KC)
Fig. 9: Audio and Visual System Circuit Diagram (Without Navigation, Display
Audio Type (7-inch Screen): KA/KC) (1 Of 4)
Fig. 10: Audio and Visual System Circuit Diagram (Without Navigation, Display
Audio Type (7-inch Screen): KA/KC) (2 Of 4)
Fig. 11: Audio and Visual System Circuit Diagram (Without Navigation, Display
Audio Type (7-inch Screen): KA/KC) (3 Of 4)
Fig. 12: Audio and Visual System Circuit Diagram (Without Navigation, Display
Audio Type (7-inch Screen): KA/KC) (4 Of 4)