G. Modifying the Wiring Harness For Tele Aid Control Module

G. Modifying the wiring harness for the Tele Aid control module





1. At the left side of the exposed electronics compartment behind the rear seat in the cargo compartment, disconnect the Tele Aid power supply connector from the Tele Aid control module (Figure 26).





2. Remove the housing from the Tele Aid power supply connector (Figure 27).

3. If pin # 14 is vacant (Arrow, Figure 27), proceed to step 6.





4. If pin # 14 is occupied (Arrows, Figure 28), verify that the violet-color wire coming from pin # 14 goes to:

^ Pin # 3 of the power supply connector for the linear compensator

^ Pin # 28 of the power supply connector for the UHI control module

5. If so, proceed to step 17.

Note:
If the violet-color wire coming from pin # 14 does not go to pin # 3 and pin # 28 of the power supply connectors for the linear compensator and UHI control module respectively, contact TAC/EDAC for diagnostic assistance.

6. Crimp the kit-included pin onto an end of the 6 foot section of 20-gauge, violet-color wire.

Note:
Refer to Parts Information, Section N, for pin distinction information.

7. Insert the crimped-on pin of the 20-gauge, violet-color wire into pin # 14 of the power supply connector for the Tele Aid control module (Arrows, Figure 28).

8. Reinstall the housing on the power supply connector for the Tele Aid control module.

9. Route the 20-gauge, violet-color wire from pin # 14 of the power supply connector for the Tele Aid control module to the power supply connector for the linear compensator.

Note:
Secure the 20-gauge, violet-color wire to the main wiring harness with wire ties and electrical tape.

10. Remove the tape from the power supply wiring harness for the linear compensator from the connector to the point where it branches off the main wiring harness.

11. Separate the violet-color wire of the power supply wiring harness for the linear compensator from the other wires.

12. Cut the violet-color wire of the power supply wiring harness for the linear compensator half way between the connector and the point where it branches off the main wiring harness.

13. Strip 1/4 inch insulation off both ends of the violet-color wire cut in step 12.

14. Strip 1/4 inch insulation off the 20-gauge, violet-color wire routed to the power supply connector for the linear compensator.





15. Solder splice the two cut ends of the violet-color wire of the power supply wiring harness for the linear compensator to the end of the 20-gauge, violet-color wire routed from Tele Aid control module (Figure 29).

a. Twist the solder splice into the three wire ends.

b. Use a heat gun on high setting to melt the solder over the twisted together wire ends and the glue over the wire insulation.

16. Reapply tape to the power supply wiring harness for the linear compensator including the solder spice.

17. Test the modification.

a) With the Tele Aid control module unplugged and the telephone in the cradle, set COMAND or Audio 20 head unit to "TEL" mode. Notice the signal strength bars on the display.

b) Turn off COMAND or Audio 20 head unit.

c) Connect the power supply connector to the Tele Aid control module.

d) Turn on COMAND or Audio 20 head unit and select "TEL" mode. Note the level increase in the signal strength bars on the display.

Note:
There may be no increase in the signal strength bars on the display if too close to a cell tower.