Primary Ignition Coil Resistance
- On Corolla and Tercel, remove distrbutor cap, rotor and dust cover. Using an ohmmeter, measure resistance between positive and negative terminals.
- On Pickup, measure resistance between positive (Brown wire) and negative (-) (Black wire) terminals.
- On all models, if primary resistance is not within specification, replace ignition coil. SEE IGNITION COIL RESISTANCE table. If resistance is within specification, proceed to SECONDARY COIL RESISTANCE.