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 MANUALSMAZDA1999626 ES, 2.5 D, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC DIAGNOSTIC PROCEDURESIGNITION CHECKSIGNITION CONTROL MODULE (MILLENIA)
1999 Mazda 626 ES, 2.5 D, Standard
Ignition Control Module (Millenia)
1999 Mazda 626 ES, 2.5 D, StandardSECTION Ignition Control Module (Millenia)
Testing information is not available from manufacturer. Check for diagnostic trouble codes. See appropriate SELF-DIAGNOSTICS article.
ECM/PCM TERMINAL IDENTIFICATION
| Wire Color To Ground (1) | KOEO Volts | KOER (Idle) Volts | ||||
|---|---|---|---|---|---|---|
| Miata | ||||||
| Brown/Yellow(3G) | Less Than 1 | .2 | ||||
| Brown (3H) | Less Than 1 | .2 | ||||
| Protege | ||||||
| 1.5L | ||||||
| Violet/Green (3A) | 0 Or 5 | 2 | ||||
| Yellow/Black (4N) | Less Than 1 | .3 | ||||
| 1.8L | ||||||
| Violet/Green (4F) | 0 Or 5 | 2 | ||||
| Yellow/Black (4N) | Less Than 1 | .3 | ||||
|
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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.