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.
2000 Infiniti QX4FACTORY OEM SERVICE PROCEDURE
Ignition Coil Resistance
- Carefully inspect external housing for burned spots indicating secondary circuit arcing to primary or ground circuits. Disconnect ignition coil primary 2-pin harness connector. Measure resistance between primary connector terminals.
- Measure resistance between secondary tower and positive terminal of coil primary connector. Positive terminal is identified by wire color. See IGNITION COIL POWER SOURCE TERMINAL IDENTIFICATION table. If either resistance is not as specified, replace ignition coil. See appropriate IGNITION COIL RESISTANCE table.
IGNITION COIL RESISTANCE (EXCEPT SENTRA) - OHMS @ 68°F (20°C)
| Application | Primary | Secondary | ||
|---|---|---|---|---|
| Maxima | (1) | (1) | ||
| Except Maxima | 1.0 | 10,000 | ||
|
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IGNITION COIL RESISTANCE (SENTRA) - OHMS @ 77°F (25°C)
| Application | Primary | Secondary | ||
|---|---|---|---|---|
| 1.8L | (1) | (1) | ||
| 2.0L | .8 | 16,000 | ||
|
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Factory Service Tools
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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.
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