Suzuki LT-A700X 2004 Service Manual page 410

ELECTRICAL SYSTEM 9-23
First check the continuity between B and C and between A
and C terminals with the tester.
Check the insulation between 5 and B and between 5 and A.
Apply 12 V to the terminals as shown in Fig-1, and check the
insulation between B and C.
Apply 12 V to the terminals as shown in Fig-2, and check the
insulation between A and C.
If there is no continuity, replace the drive relay with a new one.
Fig-1
Fig-2
DIFF-LOCK RELAY
First check the insulation between A and B terminals (B wire
and B/G wire) with the tester. Then apply 12 V to terminals (O/Y
wire and Y/B wire) as shown and check the continuity between
A and B. If there is no continuity, replace the diff-lock relay with
a new one.