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.
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HOMESERVICE MANUALSACURA19983.5RL SPECIAL EDITIONREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 15 (A/C-HEATER SYSTEM)TESTINGAIR MIX CONTROL MOTOR TESTING
1998 Acura 3.5RL Special Edition
Air Mix Control Motor Testing
1998 Acura 3.5RL Special EditionSECTION Air Mix Control Motor Testing
WARNING: This page is about a different car, the 1998 Acura 3.0CL and 1998 Acura 2.3CL. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect 5-pin connector from air mix control motor. Connect battery voltage to air mix control motor terminal No. 1 and ground terminal No. 5. See Fig 1
. If air mix control motor does not run and stop at maximum hot position, reverse battery connections. If air mix control motor does not run and stop at maximum cool position, remove air mix control motor.NOTE: If air mix control motor does not run, remove air mix control motor. Check doors and linkage for smooth operation. If doors and linkage are okay, air mix control motor must be replaced.
- Measure resistance between terminal No. 2 and 3. Resistance should be 4800-7200 ohms. Measure resistance between terminal No. 3 and 4. Resistance should be 960-1440 ohms at maximum hot position, and 3840-5760 ohms at maximum cool position. If resistance checks are not as specified, replace air mix control motor.
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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.