Attachment IIIB - Supplement # 1

ACCESSORY POWER CIRCUIT WIRING MODIFICATION

AFFECTED VEHICLES:
1992-1997 MODEL YEAR AEROSTAR

SERVICE PROCEDURE

1. Record the radio stations, then disconnect the battery negative cable.

2. Remove the knee bolster.





3. Remove the instrument panel reinforcing panel. See Figure 1.





4. Completely loosen the ignition switch electrical connector retaining screw, then disconnect the ignition switch electrical connector. See Figure 2.





5. Remove the ignition switch electrical connector wiring shield and terminal locking plate. See Figure 3.





6. Disconnect jumper A electrical connector. See Figure 4.





7. Remove the gray/yellow wire, circuit 687, from terminal A3 of the ignition switch electrical connector. See Figure 5.





8. Remove jumper A black/light green wire from terminal A1 of the ignition switch connector and install it into terminal A3 of the ignition switch connector. See Figure 6.





9. Remove the vehicle wiring harness black/light green wire from jumper A and install it into terminal A1 of the ignition switch electrical connector. See Figure 7.





10. Install the gray/yellow wire, circuit 687, previously removed from terminal A3 of the ignition switch electrical connector into the open terminal in jumper A. See Figure 8.

11. Connect jumper A electrical connector.

12. Install the ignition switch electrical connector wiring shield and terminal locking plate.

13. Install the ignition switch electrical connector. Tighten the retaining screw securely.

14. Connect the battery negative cable.

15. Start the engine and verify modification as follows:

^ Turn the blower motor to HIGH.

^ Turn the radio on.

^ On vehicles equipped with automatic transmission, check the brake shift interlock system by trying to shift from Park to any other gear without depressing the brake pedal.

NOTE:
If any of the above components were working before the modification and are not working now, repeat the service procedure.

16. Turn the ignition key to the accessory position, then turn the blower motor to HIGH. If the blower motor operates in the accessory position, repeat the service procedure.





17. Using tie straps on the relay harness, secure the relay harness as shown in Figure 9. Make sure the relay is accessible for service.

NOTE:
Make sure that the harness is away from all moving parts. See Figure 9.

18. Trim the tie straps.

19. Install the instrument panel reinforcing panel. Tighten the retainers to 10-14 Nm (7-10 lb-ft).

20. Install the knee bolster.

21. Program the radio stations.