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.
Horn Relay Input
1998 GMC Envoy 2WD V6-4.3L VIN WSECTION Horn Relay Input
Input 1 (Part 1 Of 2):
Input 1 (Part 2 Of 2):
Range: ACTIVE/INACTIVE
The horn relay input information refers to the horn operation.
ACTIVE displays when the following conditions exist:
^ The BCM senses that the horn relay coil circuit is grounded.
^ The horns receive a command to sound.
INACTIVE displays when the following conditions exist:
^ The BCM does not sense that the horn relay coil circuit is grounded.
^ The horns do not receive a command to sound.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.