Checking The Engine Stop Lanyard Switch; Ecm And Electronic Throttle Valve Control System; Checking The Main Relay And Electronic Throttle Valve Relay - SELVA MARINE Blue Whale 250 EFI Service Manual

– +
ELEC
2. Check the engine start switch for continu-
ity at the 10-pin main harness coupler
(engine start switch end). Check the wir-
ing harness or replace the engine start
switch if there is no continuity.
ON
OFF
START
4
1
2
Switch
White Black
position
(W)
1
Off
On
Start
Checking the engine stop lanyard
switch
1. Disconnect the 10-pin main harness cou-
pler.
2. Turn the engine start switch to ON.
3. Check the engine stop lanyard switch for
continuity at the 10-pin main harness
coupler (engine stop lanyard switch end).
Check the wiring harness or replace the
engine stop lanyard switch if out of speci-
fication.
8-21
Electrical system
ON
START
OFF
3
5
S6P28360
Lead color
Red Yellow Brown
(B) (R) (Y) (Br)
2 3 4 5
1
Switch
White (W) 1 Black (B) 2
position
Clip removed
Clip installed
ECM and electronic throttle valve
control system
Checking the main relay and
electronic throttle valve relay
1. Remove the main relay 1 and electronic
throttle valve relay 2.
2
1
2. Connect the digital circuit tester (check-
ing continuity) leads to relay terminals 3
and 4.
3. Connect the positive battery lead to the
relay terminal 5.
4. Connect the negative battery lead to the
relay terminal 6.
2
S6P28370E
Lead color
S6P28150
6P23H11
8