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.
Circuit/System Testing
2025 Chevrolet Equinox RS, FWDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2024 GMC Terrain and 2024 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the S70L Steering Wheels Controls Switch - Left, ignition ON.
- Test for 11.8 - 12.2 V between the 12 V reference circuit terminal 12 and ground.
- If less than 11.8 V
- Ignition OFF, disconnect the X3 harness connector at the K9 Body Control Module.
- Test for infinite resistance between the 12 V reference circuit and ground.
- If less than infinite resistance, repair the short to ground on the circuit.
- Go to next step: If infinite resistance
- Test for less than 2 Ω in the 12 V reference circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the K9 Body Control Module.
- If greater than 12.2 V
- Ignition OFF, disconnect the X3 harness connector at the K9 Body Control Module, ignition ON.
- Test for less than 1 V between the 12 reference circuit and ground.
- If 1 V or greater, repair the short to voltage on the circuit.
- If less than 1 V, replace the K9 Body Control Module.
- Go to next step: If the test lamp illuminates
- Ignition OFF, connect the harness connector at the S70L Steering Wheels Controls Switch - Left. Disconnect the X3 harness connector at the K9 Body Control Module, ignition ON.
- Test for less than 1 V between the signal circuit terminal 16 and ground.
- If 1 V or greater
Repair the short to voltage on the circuit.
- Go to next step: If less than 1 V
- If 1 V or greater
- Ignition OFF.
- Test for infinite resistance between the signal circuit terminal 16 and ground.
- If less than infinite resistance
- Go to next step: Repair the short to ground on the circuit.
- Test for 8.5k - 9.0k Ω between the 12 V reference circuit terminal 4 and the signal circuit terminal 16.
- If not within the specified range
- Ignition OFF, disconnect the harness connector at the S70L Steering Wheels Controls Switch - Left.
- Test for less than 2 Ω in the signal circuit end to end.
- If 2 Ω or greater, repair the open/high resistance in the circuit.
- If less than 2 Ω, replace the S70L Steering Wheels Controls Switch - Left.
- Go to next step: If within the specified range
- Press and hold the adaptive cruise control gap switch. Test for 2.4k - 2.8k Ω between the 12 V reference circuit terminal 4 and the signal circuit terminal 16.
- If not within the specified range
Replace the S70L Steering Wheels Controls Switch - Left.
- Go to next step: If within the specified range
- If not within the specified range
- Test or replace the K9 Body Control Module
RENDER: 1.0x
NO RELATED
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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.