Maxima & 280ZX
- Connect voltmeter positive lead to "C" terminal (Blue wire) of IC ignition unit connector. See Fig 2. Attach negative lead to side of distributor. Turn ignition switch "ON".
- If voltage is 11.5-12.5 volts, check ground circuit. See IC Ignition Unit Ground Circuit Test. If voltage reading is below 11.5 volts, check Coil Primary Resistance, if not previously done.