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Insert non-formatted text hereThe early 1200 coil -- as with nearly all pre-electronic ignition systems -- uses a Ballast resistor to drop the voltage supplied to the coil. All 1200s used a ballast resistor until the 1990 models.
Early 1200
NOTE: The 1973 Wiring Diagram doesn't show a resistor, but it definitely has one.
Stock wiring harness
| Part | wire color | Connects To |
|---|---|---|
| ballast resistor (single-terminal side) | BW | to IG terminal of ignition switch |
| ballast resistor (dual-terminal side) | BW BR | to coil '+' terminal to R (START) terminal of ignition switch\* |
| Coil | wire color | Connects To |
| Coil '+' | BW | to ballast resistor dual-connector side |
| Coil '-' | B | to distributor points terminal |
NOTE: all the wires indicate are colored BW (black w/white stripe)
The coil wiring does not go through the Fuse Box
Common Problems
Does your engine start when cranking but immediately die when you release the key to the ON (running) position? Then your resistor is bad or wired incorrectly. As you can see from the diagram, START of the ignition switch supplies full voltage bypassing resistor.
Late 1200
From October 1989, Sunny Truck uses electronic ignition and computerized carburetor. There is NO BALLAST RESISTOR.
Also see: EI Wiring
Coil BW: unknown. Not needed for old carburetor (non ECU) BR: Coil + terminal
Distributor BW: Coil + terminal L: Coil - terminal