Genuine Jeep Wagoneer Brake Light Switch

Jeep Wagoneer Brake Light Switch Parts Questions & Answers

• Switch, Brake Lamp
  J3225787
  Q: How to adjust the brake light switch on a Jeep Wagoneer?

  A: Disconnect the cable from the negative terminal of the battery. From under the dash, unplug the brake light switch electrical connector and remove the pushrod bolt. Remove the brake light switch, noting the positions of the bushings, spacers and sleeves. Lubricate the switch bushings, spacers and sleeves with a light coat of multi-purpose grease and position the switch against the brake pedal. Install the pushrod bolt from the correct side and install the nuts, tightening them to the specified torque. Attach the electrical connector and reconnect the battery. The switch is not adjustable. On pre-1991 models, the switch is not adjustable. On 1991 and later models, it is adjustable. To check the switch adjustment on 1991 and later models, move the brake pedal forward by hand and watch the switch plunger. It should be fully extended at the point at which pedal free play is taken up and brake application begins. A clearance of about 1/8-inch should exist between the plunger and the pedal at this point. If the plunger-to-pedal clearance is correct and the brake lights are operating, no adjustment is necessary. If the plunger doesn't fully extend and the clearance between the pedal and switch barrel is insufficient, adjust the switch. To adjust the switch, grasp the brake pedal and pull it to the rear as far as possible. The switch plunger barrel will "ratchet" to the rear in its retaining clip to the correct position. Measure the plunger-to-pedal clearance to make sure it's correct and verify that the brake lights are still operating correctly. Warning: Make SURE the brake pedal returns to its fully released position after adjustment. The switch can interfere with full pedal return if it's too far forward, resulting in dragging brakes caused by partial brake application.