Yamaha RS90K, Service Manual

Page: 714 / 841

8-41
– +
ELEC
GRIP WARMER SYSTEM
PASSENGER GRIP WARMER SWITCH
(RST90/RST90TF)
1. Disconnect:
• Passenger grip warmer switch coupler
1
2. Connect:
• Pocket tester
(to the passenger grip warmer switch coupler)
1
3. Check:
• Passenger grip warmer switch continuity
Faulty
→
Replace.
Continuity
Switch
position
Color code
G/R O/B Y/L
LO
OFF
HI
+ –
Ω ×
1
G/R Y/L O/B
+ –
Ω ×
1
G/R Y/L O/B
PASSENGER GRIP WARMER RELAY
(RST90/RST90TF)
1. Inspect:
• Passenger grip warmer relay
1
Inspection steps:
• Disconnect the passenger grip warmer relay
from the coupler.
• Connect the pocket tester (
Ω ×
1) and battery
(12 V) to the passenger grip warmer relay termi-
nals as shown.
• If passenger grip warmer relay does not have
continuity between the blue/red and orange/
black terminals, replace it.
Positive battery terminal
→
Blue/Red
1
Negative battery terminal
→
Yellow 2
Positive tester probe
→
Blue/Red
3
Negative tester probe
→
Orange/Black
4
1
4
3
2 1
L/R
O/B
L/R Y