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 MANUALSMAZDA1991MX-6 GT, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - TESTS W/CODESRETRIEVING CODESTROUBLE CODE ACCESS
1991 Mazda MX-6 GT, Standard
Trouble Code Access
1991 Mazda MX-6 GT, StandardSECTION Trouble Code Access
- Using jumper wire, ground Green 1-pin connector. Connector is located at back of left front wheelwell. See Fig 1.
- With ignition on and engine stopped, observe Check Engine or MIL light. Note trouble codes. Check TROUBLE CODE IDENTIFICATION table for possible cause. If light remains on continuously, ECU is defective.
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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.