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 MANUALSACURA20043.5RLREPAIR AND DIAGNOSISELECTRICALGAUGESINSTRUMENT PANELADJUSTMENTSA/T GEAR POSITION SWITCH
2004 Acura 3.5RL
A/T Gear Position Switch
2004 Acura 3.5RLSECTION A/T Gear Position Switch
- Ensure parking brake is applied. To gain access to A/T gear position switch, see A/T GEAR POSITION SWITCH under REMOVAL & INSTALLATION. Place A/T gear position switch in Neutral position. See Fig 1 . Place transaxle control shaft in Neutral. Remove lock nut and washer on A/T gear position switch. Loosen A/T gear position switch bolts. Install NEW lock washer on A/T gear position switch, aligning projected tip with neutral mark on switch. Install lock nut and tighten while holding control shaft. Bend lock tabs against lock nut. See Fig 1 .
- Tighten A/T gear position switch bolts. Connect electrical connector to A/T gear position switch. Check A/T gear position switch for synchronization with indicator. If A/T gear position switch is not synchronized with indicator, loosen bolts and readjust. After adjustment, start engine and verify proper operation. Ensure shift lever cannot be moved from "N" to "R" position without pressing button. Engine will only start in "N" to "P" position. Back-up lights come on in "R" position.
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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.