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 MANUALSACURA1994INTEGRA (GS-R) L4-1797CC 1.8L DOHC (VTEC)REPAIR AND DIAGNOSISHEATING AND AIR CONDITIONINGCONTROL ASSEMBLYDESCRIPTION AND OPERATION
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)
Control Assembly: Description and Operation
1994 Acura Integra (GS-R) L4-1797cc 1.8L DOHC (VTEC)SECTION Description and Operation
The air delivery system directs the flow of air used by the heater and air conditioner systems.
Mode Selection
Mode selection is controlled by the mode switches in the heater control panel and the mode control motor. When you select a specific mode, voltage is applied through the dimming control circuit to the LED, which comes ON, indicating the mode selected. Ground is provided to the mode control motor though that mode switch. The motor then runs until the air control door reaches the proper position.
Fresh/Recirculation Selection
When you press the recirculation button, a ground signal is sent from the heater control panel to the recirculation control motor. The motor then runs until the recirculation door reaches the opposite position. When the recirculation button is in the REC position, battery voltage is applied through the dimming control circuit to the recirculate LED, and the LED comes ON.
Mode Selection
Mode selection is controlled by the mode switches in the heater control panel and the mode control motor. When you select a specific mode, voltage is applied through the dimming control circuit to the LED, which comes ON, indicating the mode selected. Ground is provided to the mode control motor though that mode switch. The motor then runs until the air control door reaches the proper position.
Fresh/Recirculation Selection
When you press the recirculation button, a ground signal is sent from the heater control panel to the recirculation control motor. The motor then runs until the recirculation door reaches the opposite position. When the recirculation button is in the REC position, battery voltage is applied through the dimming control circuit to the recirculate LED, and the LED comes ON.
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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.