Yamaha 2004 Rhino 660 YXR660FAS Service Manual page 406

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6. Four-wheel drive relay 3
• Remove the four-wheel drive relay 3 from
the wire harness.
• Connect the pocket tester (Ω × 1) and the
battery (12 V) to the four-wheel drive relay
3 terminals.
Battery (+) terminal →
Brown/Red terminal 1
Battery (–) terminal →
Yellow/Black terminal 2
Tester (+) lead → Blue/Red terminal 3
Tester (–) lead → Gray terminal 4
• Check the four-wheel drive relay 3 for
continuity.
7. On-Command four-wheel drive switch and
differential gear lock switch
Refer to "CHECKING THE SWITCH".
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2WD/4WD SELECTING SYSTEM
CONTINUITY
CORRECT
9 - 54
NO CONTINUITY
Replace the four-wheel drive relay 3.
INCORRECT
Replace the On-Command four-wheel drive
switch and differential gear lock switch.
– +
ELEC