No or Poor Sound From the Speakers When Navigation Is Used

No Or Poor Sound From The Speakers When Navigation Is Used






Fault Symptom
No or poor sound from the speakers when navigation is used.

Conditions
Ignition ON.
IHU activated.

Diagnostic Help
The sound is OK in radio and CD changer modes.
Finding a mechanical or electrical fault.

Checking The Wiring Harness
Jiggle the wiring harness at several points and in different directions to detect intermittent breaks and short circuits in the wiring harness. Check switches, connectors and crimp connections for oxidation, withdrawn pins and pin clamping force.