Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Stoplight Switch
Disconnect stoplight switch connector (located on brake pedal support). Check continuity between stoplight switch terminals. With brake pedal pressed, continuity should exist between terminals No. 1 and 2, and continuity should not exist between terminals No. 3 and 4. See Fig 1. With brake pedal released, continuity should exist between terminals No. 3 and 4, and continuity should not exist between terminals No. 1 and 2. If continuity is not as specified, replace stoplight switch and retest system operation.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.