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Home >> Mercedes Benz >> 2003 >> CL600 >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Entertainment, Lighting & Navigation -- Retrofitting & Conversion -- 215 & 220 Chassis >> Retrofitting & Conversion >> Retrofit cell phone - AN82.70-P-0002 >> Retrofit portable CTEL - AN82.70-P-0002MAM >> Retrofit telephone wiring harness - AN82.70-P-0002-03MMM

Retrofit telephone wiring harness - AN82.70-P-0002-03MMM

Fig 1: Telephone Wiring Harness Connection Diagram (Portable CTEL Branch-Off Line In Armrest)
G04852677

Connection diagram for CTEL shown on portable CTEL branch-off line in armrest 

  1. Prepare wiring harness (2) as shown in figure.
  2. Route wiring harness (2) along existing leads in the vehicle as shown in figure.
    Fig 2: Identifying Telephone Wiring Harness Components
    G04852678
  3. Route branch-off line to handset transmitter and receiver connector (X39/5) as shown in figure to the center tunnel.
  4. Route telephone wiring harness (2) in cable duct below right front passenger seat.
  5. Route brown cable (br) of wiring harness (2) to ground (right inner door sill) (W28/2) and connect.
  6. Route CTEL wiring harness (2) in right cable duct into right rear compartment.
    Fig 3: Identifying CTEL D2B Transceiver Unit, Diagnostic Socket Pin 12 Connector Sleeve And Fuse
    G04852679
  7. Solder blue/black cable (bl/sw) of wiring harness (2) at left of driver's footwell with solder connector to blue/black (bl/sw) cable of the connector sleeve for the wake-up signal (Z35/10).
  8. Solder yellow/white cable (ge/ws) with solder connector to yellow/white cable (ge/ws) of diagnostic socket's (Z70/1) connector sleeve.
  9. Route black/yellow cable of wiring harness (2) on to left fuse box.
    Fig 4: Identifying Wiring Harness And Connector Sleeve
    G04852680
  10. Route voltage supply wiring harness, black/yellow (sw/ge) in left front fuse box (F1) to fuse holder (F1f18) and plug in.

    IMPORTANT Make sure that fuse socket (terminal 30) is fitted with a 5A fuse.

    Fig 5: Identifying Voltage Supply Wiring Harness And Fuse Holder
    G04852681
  11. Plug in branch-off line of voltage supply wiring harness, red/black cable (rt/sw) on rear fuse and relay module (K40/5) to fuse socket (F4-f63).

    IMPORTANT Make sure that fuse socket 63 (terminal 15) is fitted with a 7.5 A fuse.

    Fig 6: Identifying Red/Black Cable, Relay Module And Fuse Socket
    G04852682
  12. Route branch-off line of wiring harness (2) to CTEL D2B transceiver unit (A35/13) into the equipment plate area (3) below the right rear seat.
    Fig 7: Identifying Wiring Harness, CTEL D2B Transceiver Unit And Plate Area
    G04852683

    IMPORTANT The cable for the microphone hands-free system has been pre-installed in the wiring harness for the overhead control panel.

  13. Pull out the overhead control panel and FFS connector (X25/8) at the parcel shelf and disconnect it.
  14. Open connector housing.
  15. Insert black cable (sw) branch-off line of wiring harness (2) into cell 1.
  16. Insert white cable (ws) branch-off line of wiring harness (2) into cell 15.
  17. Assemble connector housing again and connect.
    Fig 8: Identifying FFS Connector, Black Cable And White Cable
    G04852684
  18. Route antenna wiring harness along existing leads into the right of the trunk.
  19. Route antenna cable of wiring harness (2) to CTEL and GPS roof antenna connector (A2/49x1).
    Fig 9: Identifying Antenna Cable Of Wiring Harness And Antenna Connector
    G04852685
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