SELVA MARINE Blue Whale 250 EFI, Service Manual

Page: 328 / 377

ELEC
Electrical system
– +
8-23
6P23H11
4. Disconnect the ECM coupler
d
, and
then turn the engine start switch to ON.
5. Check the voltage at ECM coupler termi-
nal
e
(13, wiring harness end). Check
the fuse, wiring harness, and engine start
switch if below specification.
6. Turn the engine start switch to OFF, and
then connect the ECM coupler
d
.
7. Disconnect the ECM coupler
a
, and
then turn the engine start switch to ON.
8. Check the voltage at ECM coupler termi-
nals
f
(27 and 34, wiring harness end).
Check the fuse, relay, and wiring harness
if below specification.
Checking the electronic throttle
valve and TPS circuit
NOTE:
To check the TPS output voltage, see Chap-
ter 4,
“ Checking the TPS. ”
1. Disconnect ECM couplers
a
and
b
.
Terminal
e
(yellow)
C
– Ground:
12 V (battery voltage)
S6P28470
a
b
d
S6P28480
d
e
Terminal
f
(red/yellow) (R/Y):
Q
– Ground:
X
– Ground:
12 V (battery voltage)
S6P28490
a
d
S6P28500
f
a
S6P28450
a
b