ACCORD and PRELUDE 1984-89 with HITACHI distributor
1. Disconnect the wires from the breaker module.
2. Using a voltmeter, check the voltage between the blue wire and ground, and then between the black/yellow wire and ground, with the ignition on. There should be battery voltage.
3. If there is no voltage, check the wiring in the breaker module.
4. Set the ohmmeter to Rx100. Disconnect the wires from the breaker module. Check the continuity at the breaker module terminals.
5. Connect the positive terminal of the ohmmeter to the black and yellow wire of the output, and the negative terminal to the blue wire; the conductivity should be within the selected scale on the ohmmeter.
6. Then connect the ohmmeter in the opposite direction; the arrow should not deviate (there should be no conductivity).
7. If the ohmmeter readings do not correspond to points 5 and 6, then it is necessary to replace the breaker module.
ACCORD AND PRELUDE 1984-85 with TOYO DENSO distributor
1. Disconnect the breaker module wires.
2. Using a voltmeter, check the voltage with the ignition on between the blue wire and ground, then between the black and yellow wire and ground; there must be battery voltage.
3. If there is no voltage, check the wires to the breaker module.
ACCORD AND PRELUDE 1988-89 with TOYO DENSO distributor
1. Remove the distributor cap.
2. Remove the breaker assembly from the distributor.
3. With the ignition on (ignition key in the ON position), use a voltmeter to check for battery voltage at the terminal with the black/yellow wire, and then at the terminal with the blue wire. Voltage should be present in both cases.
4. In the breaker module, connect the blue and adjacent green terminals with a jumper. Set the ohmmeter to the Rx100 scale.
5. There should be no conductivity when connecting the ohmmeter with the plus to the black/yellow terminal and the minus to the blue one.
6. With reverse polarity, conductivity should be present (visible on the installed scale).