Ptt System; Checking The Ptt Relay - Yamaha F150B Service Manual

PTT system

Checking the PTT relay

1. Remove the junction box cover
2. Measure the input voltage between the
PTT relay terminal a and terminal b.
b
PTT relay input voltage:
Terminal a–Terminal b
12.0 V (battery voltage)
3. Disconnect the battery power source,
ground lead, PTT motor leads and PTT
relay coupler. NOTICE: Always discon-
nect the battery negative terminal
before disconnecting the PTT relay
terminals.
4. Connect the test harness (2 pins) a.
Test harness (2 pins) a:
90890-06867
5. Check the PTT relay for continuity.
Replace the PTT relay if out of specifica-
tion.
G/W G
f
e
b
a
Lg
Sb
a
c
a
d
Starter motor / PTT system
PTT relay continuity:
a b c
6. Connect the positive battery lead to the
terminal e, and the negative battery lead
to the terminal b, and then check the
PTT relay for continuity. Replace the PTT
relay if out of specification.
G/W G
a
e f
b
PTT relay continuity:
a b
PTT system
d e f
Lg
Sb
c
a
d
c d
5-48
0
1
2
3
4
5
6
7
8
9
10
A