F. Modifying the Wiring Harness For Tele Aid Control Module

F. Modifying the wiring harness for the Tele Aid control module (Vehicles equipped with Tele Aid)





1. At the left side of the exposed electronics compartment in the trunk, disconnect the Tele Aid power supply connector from the Tele Aid control module (Figure 23).





2. Remove the locking cover from the Tele Aid power supply connector to expose the pin housing (Figure 24).

3. If pin slot # 14 is vacant (Arrow, Figure 24), skip to step 6.





4. If pin slot # 14 is occupied by a pin with violet-color wire (Arrows, Figure 25), verify the wire goes to:

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

^ Pin slot # 28 of the power supply connector for the MHI control module.

5. If so, skip to step 17.

Note:
If the violet-color wire coming from pin slot # 14 does not go to pin slot # 3 and pin slot # 28 of the power supply connectors for the linear compensator and MHI control module respectively, contact TACIEDAC for diagnosis assistance.

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

^ Refer to Parts Information, Section M, for pin distinction information.

7. Insert the pin into slot # 14 of the pin housing of the power supply connector for the Tele Aid control module.

8. Reinstall the locking cover on the pin housing of 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 halfway 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 26).

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

b. Use a heat gun at 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 the Audio 20 head unit, to TEL" mode. Notice the signal strength bars on the display.

b) Turn off COMAND or the Audio 20 head unit.

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

d) Turn on COMAND, or the Audio 20 head unit, and select "TEL" mode. Notice 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.