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.
1981 Mazda B2000 BaseFACTORY OEM SERVICE PROCEDURE
Ignition Coil Resistance Test
- Turn ignition switch "OFF". Set an ohmmeter in the low scale and attach its leads to the coil positive and negative terminals. Coil should be isolated from rest of system. Check primary resistance reading. Replace coil if not to specifications.
- Set ohmmeter in x1000 scale and attach leads to positive primary terminal and secondary tower. Check secondary resistance reading. Replace coil if not to specifications.Ignition Coil Resistance Specifications (Ohms)
Application Primary Secondary Chrysler Corp. .70-.85 9000-11, 000 Courier .81-.99 6800-9200 Mazda GLC (FWD)(1) Continuity 10, 000-30, 000 Mazda GLC (RWD)(1) 1.035-1.265 Mazda B2000(1) .90 Mazda 626(1) 1.035-1.265 (1) With coil at normal operating temperature.
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.