Chances are the agency of the malicious flare or brake lights trail on your Chevy Silverado is a incomplex complication. Further, you can blame most of these problems on dwarf or no perpetuation, according to James E. Duffy in "Latest Automotive Technology." Sure, there is besides the opportunity of a cryptic short or exposed somewhere in the Centre of the direction. On the other hand before you cause pulling wires, engender troubleshooting at the most conspicuous places to receive your lights back in working succession.
Check a Single Non-working Light
You can originate your troubleshooting at the malfunctioning brake glassy meeting, whether one shot that glossy seems broken. Remove the contain and analysis the cloudless bulb for an airy filament or damage. Closely look the socket and connections for corrosion, loose or broken wires.
Attempt the ebon wire/ground connexion using a bound wire to bridge the ground at the flare socket to a exceptional chassis ground on the vehicle and beseech a helper to function the brake lights.
After you confirm that the bulb, socket and connections are in first-class shape and there is no electrical current reaching the bulb, actualize tracing and testing the electrical wires back to the source using a test light to find a possible short or open.
Check the Brake Lights Circuit
Start at the fuse box under the hood and make sure the brake lights fuse is not blown, that the terminals are free of corrosion and that the connections are tight. Then check the brake light switch on the bake pedal arm.
Back probe the switch terminals with a test light. Only one of the switch terminals should turn on the test light. Black wires at the lamps provide the ground connections.
When there is no current reaching the switch, follow the orange wire back to the under hood fuse block and look for a possible open or short. If electrical current is reaching the switch but the lights are not working, even if the switch is in good condition, follow the current flow with your test light to the stop lamps and look for a possible open or short in the circuit.
A blue wire connects the brake lights switch to the rear lamps junction block. A brown wire and another light blue wire connect the rear junction block to the left rear stop lamp; a brown/white wire and another light blue wire connect the rear junction block to the right rear stop lamp. When you depress the brake pedal, both switch terminals should turn on the test light. If only one of the wires turns on the test light, unplug the switch and jump the two connections at the connector. If the brake lights come on, replace the switch.
