How Determine I Troubleshoot a 1994 Chevy 1500 Motor lorry Tail Brake Shine?
A push Press-stud switch at the top of the brake pedal arm operates the brake flashing on a 1994 Chevy 1500 Motor lorry. This switch is exclusive culpable for competency to the brake lights. The ground side of the brake cloudless socket is grounded at the frame. Install a new bulb and twist it slightly in both directions. If it fails to light, replace the socket because the spring contacts are bent, corroded or worn.
Probation the brake light fuse in the fuse block under the sprint on the Chauffeur's side. Transform as obligatory and retry.
2. Diagnose the brake bright switch with the voltmeter by connecting the voltmeter's charcoal front rank to a positive ground. Exercise the coral front rank to probe both wires at the connector on the switch. There should be battery voltage at one wire. There should be no voltage on the counter wire until the brake pedal is depressed. When the pedal is depressed, the Press-stud on the switch can extend, forging a closed method. Provided no voltage is displayed on the wire diametrically opposed the battery wire when the pedal is depressed, the switch is wick.
3. Disclosed the tailgate and remove the screws securing the taillight lens to the intent. Pull the lens elsewhere. Remove the taillight/brake ablaze bulb and eyeful for a burnt filament. Modify as cold.
4. Depress the brake pedal either with a helper or with the utilize of an target that can be inserted between the seat and the brake pedal to wedge the pedal down. Research the bulb socket with the voltmeter by connecting the voltmeter's atramentous lead to a good ground. Insert the voltmeter probe in the socket with the intention of touching the bottom terminal of the socket only. Try not to touch the side of the socket in the process. The side is the ground and if the bottom, which is the positive terminal, is shorted to the side it will blow the fuse. There should be 12 volts displayed, which means the wiring is good. If there is no voltage being displayed, check the wiring from the switch to the socket.
5. Release the brake pedal. Place the voltmeter on the Ohms scale. Keep the black lead on a good ground and probe the side of the socket. The display on the ohmmeter should indicate zero resistance to ground. If the display indicates resistance, follow the wire to its ground. Clean and tighten the ground connection and retry.
6. Most problems occur from either corrosion on the ablaze socket, deficient justification, damaging bulbs or problems with the switch or its habituation.
