honda Workshop Repair Guides

Honda Workshop Service and Repair Manuals

Ignition Control Module > < Diagram Information and Instructions|Page 5436
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Ignition Coil: Testing and Inspection

1. Turn the ignition switch OFF, and remove the distributor ignition (DI) cap.

F23A1 and F23A4 2.3L SOHC VTEC

F23A5 2.3L SOHC Non-VTEC

2. Disconnect the BLK/YEL and WHT/BLK (WHT/BLU for the F23A5 engine) wires from terminals A (+) and B (-) respectively.
3. Using an ohmmeter, measure resistance between the terminals. Replace the coil if the resistance is not within specifications.

NOTE:  Resistance will vary with the coil temperature; specifications are at 68 °F (20 °C).

Primary Winding Resistance
(Between the A and B terminals):
F23A1, F23A4 engines: 0.45 - 0.55 Ohm
F23A5 engine: 0.63 - 0.77 Ohm
Secondary Winding Resistance
(Between the A and Secondary Winding terminals)
F23A1, F23A4 engines: 16.8 - 25.2 k Ohm
F23A5 engine: 12.8 - 19.2 k Ohm

Ignition Control Module > < Diagram Information and Instructions|Page 5436