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 DIAGNOSISTRANSMISSIONAUTOMATIC TRANSAUTOMATIC TRANSMISSION DIAGNOSIS - M5DACOMPONENT TESTSLINEAR SOLENOID
2004 Acura 3.5RL
Linear Solenoid
2004 Acura 3.5RLSECTION Linear Solenoid
- Linear solenoid is located on throttle valve body. Disconnect transaxle sub-harness connector. See Figure .
- Measure resistance between harness connector terminals No. 8 (Red wire) and No. 9 (White wire). Resistance should be 4-6 ohms at 70°F (20°C). If resistance is as specified, go to step 4 . If resistance is not as specified, go to next step.
- Remove shift cable cover. Disconnect linear solenoid harness connector from transaxle sub-harness at transaxle. Note terminal identification on linear solenoid harness connector. Measure resistance between linear solenoid harness connector terminals No 3 (White wire) and No. 4 (Red wire). Resistance should be 4-6 ohms at 70°F (20°C). If resistance is as specified, replace transaxle sub-harness. If resistance is not as specified, replace linear solenoid.
- Disconnect 4-pin linear solenoid harness connector. Connect battery voltage to solenoid harness connector terminal No. 4 (Red wire) and ground to harness connector terminal No. 3 (White wire). Solenoid should click. If clicking sound is heard, replace transaxle sub-harness. If no clicking sound is heard, replace linear solenoid.
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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.