Honda GL1800 Service Manual page 166

2. Camshaft Position Sensor Connection
Inspection
Turn the ignition switch to "OFF."
Remove the ECM test harness and connect the
ECM connectors.
Reset the self-diagnostic memory (page 5-9).
Check that the engine can be started by cranking
it with the starter motor for 10 seconds or more.
Does the engine start?
YES – Temporary failure;
normal.
NO – GO TO STEP 3.
3. MIL System Inspection
Turn the ignition switch to "OFF."
Short the service check connector terminals with
a jumper wire (page 5-8).
Turn the ignition switch to "ON" and check that
the MIL blinks.
Is the MIL blinking?
NO – GO TO STEP 4.
YES – Replace the ECM with a new one and
inspect again.
4. Camshaft Position Sensor Peak Voltage
Inspection
Turn the ignition switch to "OFF."
Remove the left injector cover (page 5-61).
Disconnect the camshaft position sensor 2P
connector.
Check the connector for loose contacts or cor-
roded terminals.
Turn the ignition switch to "ON."
Crank the engine with the starter motor, and
measure the camshaft position sensor peak volt-
age at the camshaft position sensor connector
terminals.
Connection: Gray (+) – White (–)
Standard: 0.7 V minimum
Is voltage at least 0.7 V?
NO – Faulty camshaft position sensor.
YES – • Open or short circuit in the Gray
wire.
• Open circuit in the White or White/
yellow wire.
FUEL SYSTEM (Programmed Fuel Injection)
the system is
CAMSHAFT POSITION
SENSOR CONNECTOR
CAMSHAFT POSITION SENSOR
PEAK VOLTAGE ADAPTOR
Gray
White
5-35