Etv Relay Check - Yamaha Waverunner VXS VX1800 Service Manual

2. Check the wire harness for continuity.
Replace if there is no continuity.
a
3 2 1
6 5 4
9 8 7
b
22
APS circuit continuity
Terminal No.
Coupler "a" Coupler "b", "c"
1
2
3
4
5
6
7
8
9
3. Connect the APS coupler and ECM cou-
plers.

ETV relay check

1. Remove the fuse box cover and ETV relay
"1".
b c
c
30 29
37 36 35 34
50 49
Color
code
36 P/R
34 B/R
49 O/R
37 P/W
35 B/W
50 O/W
22 W/G
29 B/G
30 O/G
1
2. Check the ETV relay. See "Main relay
check" (7-31).
3. Measure the input voltage between the ter-
minal "a" and ground.
Input voltage
12 V (battery voltage)
Terminal "a"–Ground
4. Supply power to the ECM, and then mea-
sure the input voltage between the termi-
nals "a" and "b".
Input voltage
12 V (battery voltage)
Terminal "a"–Terminal "b"
5. Install the ETV relay and fuse box cover.
7-22
Control system
a
a
b