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.
1995 Toyota Tercel Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Ignition Coil Resistance
- Remove necessary components and disconnect spark plug wire and electrical connector from ignition coil. Remove bolt and ignition coil from cylinder head. Mark ignition coil location for reassembly reference.
- Using ohmmeter, measure ignition coil primary resistance. See Fig 1. Replace ignition coil if primary resistance is not .67-1.0 5 ohms at 14-122°F (-10-50°C) and .85-1.23 ohms at 122-212°F (50-100°C).
- Using ohmmeter, measure ignition coil secondary resistance. See Fig 2. Replace ignition coil if secondary resistance is not 9300-16,000 ohms at 14-122°F (-10-50°C) and 11,700-18,800 ohms at 122-212°F (50-100°C). Reinstall ignition coil.
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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