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 MANUALSACURA2010TL FWD V6-3.5LREPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGTESTING AND INSPECTIONCOMPONENT TESTS AND GENERAL DIAGNOSTICSBLOWER POWER TRANSISTOR TEST
2010 Acura TL FWD V6-3.5L
Blower Power Transistor Test
2010 Acura TL FWD V6-3.5LSECTION Blower Power Transistor Test
Blower Power Transistor Test
1. Remove the passenger's dashboard undercover Passenger's Dashboard Undercover Removal/Installation.
2. Disconnect the 5P connector from the power transistor.
3. Measure the resistance between terminals No. 1 and No. 4 of the power transistor. It should be about 1.5 kOhms.
- If the resistance is within the specifications, go to step 4.
- If the resistance is not within the specifications, replace the power transistor.
NOTE: Also check the blower motor. Power transistor failure can be caused by a defective blower motor.
4. Reconnect the 5P connector to the power transistor.
5. Disconnect climate control unit connector A (32P)
6. Connect climate control unit connector A (32P) terminals No. 15 and No. 28 with a jumper wire.
7. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode, and check that the blower motor runs.
- If the blower motor does not run, replace the power transistor.
NOTE: A faulty blower motor can cause the power transistor to fail. If the power transistor is replaced, also check the blower motor for binding, and replace it if necessary.
- If the blower motor runs, the power transistor is OK.
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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.