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.
Idle Speed Control (ISC) Motor
IDLE Speed Control (ISC) motor is located in lower body of throttle body. If a fault occurs in ISC motor circuit or ISC motor fails, DTC 46 will set in ECM memory. For testing procedures, see TESTS W/CODES - 1.0L 3-CYL article. ISC motor is adjusted at the factory. If manual adjustment is attempted, damage to ISC system may occur.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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