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 MANUALSMAZDA1991PROTEGE DX, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM/COMPONENT TESTSMISCELLANEOUS CONTROLSA/C CUT-OUT CONTROL SYSTEM
1991 Mazda Protege DX, Standard
A/C Cut-Out Control System
1991 Mazda Protege DX, StandardSECTION A/C Cut-Out Control System
- Turn A/C, blower and ignition switches on. DO NOT start engine. Shift transmission into a drive gear. Open throttle fully. Listen for A/C clutch disengaging and re-engaging after a few seconds. See A/C CUT-OUT TIME SPECIFICATIONS .
- If system does not perform as specified, check operations of related switches and relays. See PIN VOLTAGE CHART S and SENSOR RANGE CHARTS articles in this Section.
A/C CUT-OUT TIME SPECIFICATIONS
| Application | Time Before Re-engagement | |
|---|---|---|
| Miata | 16 Seconds | |
| Protege | ||
| DOHC | 5 Seconds | |
| SOHC | 10 Seconds | |
| 323 | 10 Seconds | |
RENDER: 1.0x
NO RELATED
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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.