SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 334 / 377

ELEC
Electrical system
– +
8-29
6P23H11
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.
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.
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.
10. Turn the engine start switch to OFF.
12V 5V
ECM
S6P28000EU
3
S6P28002EU
3
PORT EX
STBD IN
DC V
S6P28003EU
3
PORT IN
DC V
Cam position sensor output voltage:
White/blue (W/L) – Black (B)
(PORT EX)
White/black (W/B) – Black (B)
(STBD IN)
Position Voltage (V)
a
,
c
More than 4.8
b
Less than 1.0
White/green (W/G) – Black (B)
(PORT IN)
Position Voltage (V)
a
,
c
Less than 1.0
b
More than 4.8
S6P28240F
a
b
c
È
È