Continental V8-302 5.0L (1984)
Control Assembly: Technical Service Bulletins
A/C - EATC Control Assembly Bulb Replacement
Article No. 85-4-4
AIR CONDITIONING - EATC CONTROL ASSEMBLY DIAL ILLUMINATION BULB REPLACEMENT
FORD 1985 THUNDERBIRD
LINCOLN-MERCURY 1984-85 CONTINENTAL, MARK VII, COUGAR
The following service procedure is to be used only on vehicles beyond the warranty period and is only for replacement of the dial illumination light
bulbs. This procedure does not apply to the vacuum flourescent (VF) display or the function indicator lights (LED's). If the numerical VF display or any
of the function LED's are inoperative or if the system is still covered by the new vehicle warranty, the entire control assembly must be replaced.
Figure 1
SERVICE PROCEDURE
1.
Remove the control assembly from the vehicle following the procedure given in the Shop Manual B, Section 36-75.
2.
Place the control assembly on a clean cardboard surface and cut the white tape seal over the joint of the button housing and the control housing
(Figure 1).
3.
Remove the two (2) screws (A, Figure 1) from the bottom of the control housing.
4.
Remove the two (2) screws (B, Figure 1) attaching the control housing to the button housing.
5.
Rotate the top of the button housing slightly downward to disengage the hooked tabs on the bottom of the button housing from the control housing.
Then, gently slide the button housing and circuit board assembly approximately 3 inches out of the control housing (Figure 1). To protect the
circuit board, do not completely remove it from the control housing.
CAUTION: DO NOT TOUCH the components or traces on the circuit board as damage to the circuit and/or components can result.
NOTE:
Care should be used not to excessively flex the ribbon cable between the button housing assembly and the circuit board.
