Honda 954 Service Manual page 144

FUEL SYSTEM (Programmed Fuel Injection)
Check for continuity between the No.4 injector
and ground.
Connection:
-
Ground
(+)
Standard: No continuity
Turn the ignition switch to "ON".
Measure the voltage between the No.4 injector
connector of the wire harness side and ground.
Connection:
-
Ground
Standard: Battery voltage
ignition switch to "OFF".
Connect the No.4 injector connector.
5-36
No continuitv
Voltage exists
Continuity
Faulty No.4 injector
Out of range
Open or short circuit i n Blackwhite wire