Brake Light Switch: Service and Repair

REMOVAL
1. Disconnect wire harness at connector from Brake On/Off (BOO) switch.
- Locking tab must be lifted before connector can be removed.
2. Remove the hairpin clip, slide the Brake On/Off (BOO) switch, the push rod, the nylon washer and brake master cylinder push rod bushing away from the brake pedal.
3. Remove the brake master cylinder push rod spacer and then the Brake On/Off (BOO) switch by sliding Brake On/Off (BOO) switch up or down.
- Since the switch side plate nearest the brake pedal is slotted it is not necessary to remove the vacuum booster input rod and one brake master cylinder push rod bushing from the brake pedal pin.

INSTALLATION
1. Position Brake On/Off (BOO) switch so the U-shaped side is nearest the brake pedal and directly over/under the pin. Then slide switch up/down trapping the vacuum booster input rod and bushing between the switch side plates.
2. Push Brake On/Off (BOO) switch and push rod assembly firmly toward brake pedal arm.
3. Assemble outside white plastic washer to pin and install hairpin clip to hold entire assembly.

CAUTION: Do not substitute other types of pin clips. Use only factory supplied hairpin clips.

4. Assemble the connector to the Brake On/Off (BOO) switch.

CAUTION: Brake On/Off (BOO) switch wire harness must have sufficient length to travel with Brake On/Off (BOO) switch during full stroke of brake pedal. If wire length is too short, reroute or repair harness as required.

5. Check Brake On/Off (BOO) switch for proper operation.