Diagnostic Manual, Info./Comm., Volume 1
Electrical Test Program - Hands-Free Microphone Test
 |
Test scope |
Test connection |
Test condition |
Nominal value |
Possible cause/Remedy |
| 1.0 |
Hands-free microphone
IDC (A35/3) |
|
Ignition: ON
Radio: OFF
CTEL: ON
A/C: OFF
Known good service area.
Handset securely in cradle. Place call from CTEL to landline telephone (vehicle should be outside).
|
Audio is heard on landline telephone with minimal "echo". |
Speaker volumne set too high producing "echo" effect,
1.1.
|
| 1.1 |
Wiring |
|
Connect test microphone to test point #5.
|
Audio is heard on landline telephone with minimal "echo".
|
Replace A35/3 1) |
| 1) In extreme cases only, it may be necessary to permanently install a remote hands-free microphone at the top of the driver's side A-pillar to reduce "echo", road noise, vehicle noise, etc. to an acceptable level. This installation requires prior Regional approval. |
|
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