SELVA MARINE Blue Whale 250 EFI Service Manual page 334

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ELEC
5. Remove the cam position sensor 3.
6. Connect the wire leads between cam
position sensor and cam position sensor
coupler (wiring harness end) as shown.
7. Connect the tester leads to the wire
leads.
3
12V
PORT EX
STBD IN
PORT IN
3
8-29
Electrical system
ECM
5V
S6P28000EU
3
DC V
S6P28002EU
DC V
S6P28003EU
NOTE:
Be sure to connect the wire leads to the cor-
responding terminals.
8. Turn the engine start switch to ON.
9. Measure the output voltage when moving
the screwdriver close to the sensor.
Replace the cam position sensor if out of
specification.
È
NOTE:
Be sure to move the screwdriver in front of
the cam position sensor in direction È as
shown, otherwise the correct output voltage
measurement cannot be obtained.
Cam position sensor output voltage:
White/blue (W/L) – Black (B)
(PORT EX)
White/black (W/B) – Black (B)
(STBD IN)
Position
a, c
b
White/green (W/G) – Black (B)
(PORT IN)
Position
a, c
b
10. Turn the engine start switch to OFF.
a b
c
È
S6P28240F
Voltage (V)
More than 4.8
Less than 1.0
Voltage (V)
Less than 1.0
More than 4.8
6P23H11