Stoplamps - Remain On After Stopping
90ford18 Article No. 90-13-3^ BRAKES - STOPLAMPS - REMAIN ON AFTER STOPPING - VEHICLES WITH ABS BRAKE SYSTEM
^ LAMPS - BRAKE STOPLAMPS - REMAIN ON AFTER STOPPING - VEHICLES WITH ABS BRAKE SYSTEM
FORD: 1990 TAURUS
LINCOLN-MERCURY: 1990 CONTINENTAL, SABLE, TOWN CAR
ISSUE: The brake stoplamps may remain on after stopping. This usually occurs because either the speed control dump valve or the ABS (Anti-lock Brake System) pedal position sensor is improperly adjusted.
ACTION: Adjust the speed control dump valve or ABS pedal position sensor switch as required. Refer to the following procedure for service details.
Figure 1:
1. Adjust the speed control dump valve until there is a .030" (.762 mm) gap between the dump valve housing (threaded part of valve) and the brake pedal contact point, Figure 1.
a. Place a .030" (.762 mm) gauge between the pedal pad and the dump valve housing while the brake pedal is in its rearmost position.
b. Adjust the valve by turning counter clockwise to increase the clearance, or pull the valve body rearward one thread.
NOTE: IF THE STOPLAMPS STILL REMAIN ON, PROCEED WITH STEP # 2.
2. Adjust the ABS pedal position sensor switch as follows:
Figure 2:
a. Remove the switchhook and push it firmly toward the switch. Push until the rear of the switch is in contact with the switch housing. This resets the ABS pedal position switch as shown in Figure 2.
b. Depress the brake pedal 1 to 2 inches (25.4 to 50.8 mm) and reconnect the switch hook.
c. Pull the brake pedal firmly rearward to its normal rest position.
d. With the brake pedal in its normal at rest position, push on the sensor switch until all slack is removed, Figure 2.
3. If the brake stoplamps remain on, replace the stoplamp switch. Refer to the appropriate 1990 Car Shop Manual, Section 12-32, for service details.
NOTE: REPLACEMENT OF THE STOPLAMP SWITCH CAN AFFECT THE ABS PEDAL POSITION SENSOR SWITCH ADJUSTMENT. THEREFORE, ALWAYS REPEAT THE ABOVE PROCEDURE WHENEVER THE STOPLAMP SWITCH IS REMOVED FROM THE PEDAL PIN.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION TIME
901303A Adjust Switch 0.3 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
2C309 07
OASIS CODES: 2100, 2160, 3050