No Handset Audio Or Landline Cannot Hear Mobile On Handset Or Mobile Cannot Hear Landline On Handset - Motorola V60 Series Manual

Is static/noise present?
Yes – Continue to step 12.
No – Original connection defective. END
No – Continue to step 12.
12. If problem persists, replace PSE, make phone several phone calls.
Is static/noise present?
Yes – Reinstall original PSE. Go to Step 13.
No – Original PSE was defective. END
13. Replace 25 pin Y cable, make several phone calls.
Is static/noise present?
Yes – Reinstall original Y cable. Go to Step 14.
No – Original Y cable was defective. END
14. Temporarily install a vehicle specific wiring harness between armrest connectors and Y
cable, make several test phone calls.
Is static/noise present?
Yes – Reconnect original pre-wire. Go to 15.
No – Original pre-wire was defective. END
15. Contact Mercedes-Benz Regional Technical Support Specialist for further assistance.
Document further diagnostic procedures, results, repairs and time used on work order.
END
No Handset Audio (Transmit or Receive) or Landline Cannot
4.4.6
Hear Mobile On Handset Or Mobile Cannot Hear Landline On
Handset.
The diagnostics that follow assume that the phone operates normally in Portable Mode (Coil
Cord Unplugged). Please confirm prior to continuing.
1. Verify complaint by making a handset call (coil cord plugged in); during the call, shake
the handset several times.
Can both parties hear each other?
Yes- Problem not evident at this time. Get more information from the customer. End.
No- Transmit /receive audio not heard. Go To STEP 2.
2. Verify 10-pin connector in center armrest is not damaged (bent or missing pins). If
damaged replace, otherwise substitute a known good 10-pin connector.
Can both parties hear each other?
Mercedes Benz Telephone Manual v4.6
4.0 Troubleshooting Section
Date: 09/01/2004