WARNING: Wire colors can vary by year, model and country. Please double-check the wiring in your Datsun 1200 before connecting parts according to this article. You don't want to burn something up! Use a voltmeter or test light to confirm the circuit behavior.
B110
High-Res USA 1971 Intro Diagram
B210
B210 Early RHD (Australia?):
B122
Late-model Sunny Truck from October 1989