Pick-Up Coil Circuit
- Turn ignition switch "OFF". Attach ohmmeter leads to terminals 5 and 9 of 10-wire harness connector to check run pick-up coil resistance and to terminals 3 and 9 to check start pick-up coil resistance. See Fig 1. Resistance should be 150-900 ohms for both pick-up coils. If so, proceed to step 3).
- If resistance is not 150-900 ohms, disconnect distributor connectors and attach ohmmeter leads to run pick-up coil leads. Check resistance value. Attach ohmmeter leads to start pick-up coil leads coming from distributor. Check resistance value. If resistance is now okay, wiring harness is defective. If resistance is still not 150-900 ohms, replace pick-up coils, as necessary.
- Connect one lead of an ohmmeter to engine ground and touch other lead to each terminal of leads coming from 2 distributor pick-up coils. There should be no continuity. If continuity is indicated, replace pick-up coil.